kaji banding hasil pengukuran fungsi · pdf file7. evaluasi data hasil pengujian yang telah...

Daftar Pustaka

1. Farid Triawan, Pengembangan Penganalisis Sinyal Dinamik Berbasis LabVIEW 7.1

Menggunakan Kartu Akuisisi Data PCI-4451, Tugas Sarjana, Departemen Teknik

Mesin, FTI-ITB, 2005.

2. Andreas Alfredo Sigalingging, Pengembangan Penganalisis Sinyal Dinamik Berbasis

Komputer Personal Menggunakan Kartu Akuisisi Data PCI-4451 dan Bahasa

Pemrograman LabVIEW 7.1, Tugas Sarjana, Program Studi Teknik Mesin, FTI-ITB,

2006.

3. Ilham Kurniawan, Pengembangan Perangkat Lunak untuk Analisis Fungsi Respon

Frekuensi Berbasis LabVIEW 6.1, Tugas Sarjana, Departemen Teknik Mesin, FTI-

ITB, 2004.

4. D.J. Ewins, Modal Testing: Theory, Practice and Application, Research Studies Press

Ltd., USA, 2000.

5. LabVIEW 7 Express: Measurement Manual, National Instruments, Austin, Texas,

2003.

6. M Series User Manual, National Instruments, Austin, Texas, 2004.

7. LabVIEW Analysis Concept, National Instruments, Austin, Texas, 2004.

8. LabVIEW 7 Express: User Manual, National Instruments, Austin, Texas, 2004.

9. LabVIEW Sound and Vibration Toolkit User Manual, National Instruments, Austin,

Texas, 2004.

10. Furqanul Fikri, Pengembangan Metode Circle Fit untuk Curve Fitting Fungsi Respon

Frekuensi Sistem Getaran MDOF, Tugas Sarjana, Program Studi Teknik Mesin, FTI-

ITB, 2007.

59

KAJI BANDING HASIL PENGUKURAN FUNGSI RESPON FREKUENSI

MENGGUNAKAN PERANGKAT AKUISISI DATA MULTIPLEXING PCI-6281

DAN PERANGKAT AKUISISI DATA SEREMPAK MULTI KANAL MSA

HP3566A

Oleh:

Nama: William

NIM: 13103130

Pembimbing:

Prof. Dr. Ir. Komang Bagiasna

Ringkasan

Latar Belakang

- Laboratorium Dinamika ITB telah beberapa kali mengembangkan perangkat lunak

penganalisis sinyal getaran yang mampu melakukan pengukuran Fungsi Respon

Frekuensi (FRF) menggunakan perangkat akuisisi data multiplexing dan perangkat

akuisisi data serempak multi kanal.

- FRF merupakan fungsi perbandingan suatu respon dengan gaya eksitasi yang

dinyatakan dalam domain frekuensi. Baik respon dan getaran harus diukur dalam

waktu yang bersamaan.

Perumusan Masalah

Melaksanakan kaji banding hasil pengukuran FRF menggunakan perangkat akuisisi

data multiplexing PCI-6281 dan perangkat akuisisi data serempak multi kanal MSA

HP3566A.

Metode Penyelesaian Masalah

1. Studi literatur tentang perangkat lunak yang telah dikembangkan sebelumnya di

Laboratorium Dinamika ITB.

2. Studi literatur mengenai bahasa pemrograman LabVIEW 7.1 dan NI-DAQmx 7.4

beserta teori dan teknik akuisisi data.

3. Pembuatan perangkat lunak analisis FRF dengan kartu akuisisi data PCI-6281.

4. Validasi perangkat lunak yang telah dikembangkan.

5. Pengujian FRF pada struktur pelat T.

6. Pengujian FRF pada struktur batang tumpuan sederhana

7. Evaluasi data hasil pengujian yang telah dilakukan.

Hasil

- Pengembangan perangkat lunak untuk melakukan pengukuran FRF metode eksitasi

kejut dan metode swept sine dengan menggunakan kartu akuisisi data multiplexing

PCI-6281.

- Kegiatan kaji banding hasil pengukuran FRF tidak dapat dilakukan dengan

sempurna karena fasilitas filter yang terdapat di kartu PCI-6281 tidak dapat

berfungsi sebagai anti-aliasing filter yang benar.

LAMPIRAN A

DATA SPESIFIKASI TEKNIK NI PCI-628X

NI 628x SpecificationsSpecifications listed below are typical at 25 °C unless otherwise noted. Refer to the M Series User Manual for more information about NI 628x devices.

Analog InputNumber of channels

NI 6280/NI 6281 ........................ 8 differential or 16 single ended

NI 6284/NI 6289 ........................ 16 differential or 32 single ended

ADC resolution ............................... 18 bits

DNL ................................................ No missing codes guaranteed

INL.................................................. Refer to the AI Absolute Accuracy Tables

Sampling rate

Maximum ................................... 625 kS/s single channel,500 kS/s multi-channel (aggregate)

Minimum.................................... No minimum

Timing accuracy ......................... 50 ppm of sample rate

Timing resolution ....................... 50 ns

Input coupling ................................. DC

Input range ...................................... ±10 V, ±5 V, ±2 V, ±1 V, ±0.5 V, ±0.2 V, ±0.1 V

Maximum working voltage for analog inputs(signal + common mode) ................ ±11 V of AI GND

CMRR (DC to 60 Hz) ..................... 110 dB

Input impedance

Device on

AI+ to AI GND ...................... >10 GΩ in parallel with 100 pF

AI– to AI GND ...................... >10 GΩ in parallel with 100 pF

Device off

AI+ to AI GND ...................... 820 ΩAI– to AI GND ...................... 820 Ω

Input bias current.............................±100 pA

Crosstalk (at 100 kHz)

Adjacent channels .......................–75 dB

Non-adjacent channels ................–95 dB

Small signal bandwidth (–3 dB)......750 kHz filter off, 40 kHz filter on

Input FIFO size................................2,047 samples

Scan list memory.............................4,095 entries

Data transfers...................................DMA (scatter-gather), interrupts, programmed I/O

Overvoltage protection (AI <0..31>, AI SENSE, AI SENSE 2)

Device on ....................................±25 V for up to eight AI pins

Device off ...................................±15 V for up to eight AI pins

Input current duringovervoltage condition ......................±20 mA max/AI pin

NI 628x Specifications 2 ni.com

Settling Time for Multichannel Measurements Typical Performance Graphs

Range

Filter Off Filter On

±15 ppm of Step

(±4 LSB for Full Scale

Step)

±4 ppm of Step


Step)

±4 ppm of Step


Step)

±10 V, ±5 V

2 μs 8 μs 50 μs

±2 V, ±1 V, ±0.5 V

2.5 μs 8 μs 50 μs

±0.2 V, ±0.1 V

3 μs 8 μs 50 μs

AI <0..31> Settling Error versus Time for Different Source Impedances

1

10

100

1 k

10 k

1 10 100Time (μs)

Err

or (

ppm

of S

tep

Siz

e)

10 kΩ5 kΩ2 kΩ1 kΩ≤100 Ω

Nor

mal

ized

Sig

nal A

mpl

itude

(dB

) AI <0..31> Small Signal Bandwidth

Frequency (Hz)

1 k 10 k 100 k 1 M 10 M–20

–12–14–16–18

–10–8–6–4–2

02

Filter OFFFilter ON

AI <0..31> CMRR

0

20

40

60

80

100

120

140

10 100 1 k 10 k 100 kFrequency (Hz)

CM

RR

(dB

)

2 V to 0.1 V Range

10 V Range

5 V Range

© National Instruments Corporation 3 NI 628x Specifications

Analog TriggersNumber of triggers.......................... 1

Source

NI 6280/NI 6281 ........................ AI <0..15>, APFI 0

NI 6284/NI 6289 ........................ AI <0..31>, APFI <0..1>

Functions......................................... Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Convert Clock, Sample Clock Timebase

Source level

(AI <0..31>)................................ ±full scale

(APFI <0..1>) ............................. ±10 V

Resolution ....................................... 10 bits

Modes.............................................. Analog edge triggering, analog edge triggering with hysteresis, and analog window triggering

Bandwidth (–3 dB)AI <0..31> .................................. 700 kHz filter off,

40 kHz filter on

APFI <0..1>................................ 5 MHz

Accuracy ......................................... ±1%

APFI <0..1> characteristics

Input impedance ......................... 10 kΩCoupling ..................................... DC

Protection

Power on ................................ ±30 V

Power off................................ ±15 V

Analog OutputNumber of channels

NI 6280 .......................................0

NI 6281 .......................................2

NI 6284 .......................................0

NI 6289 .......................................4

DAC resolution ...............................16 bits

DNL.................................................±1 LSB

Monotonicity ...................................16 bit guaranteed

Accuracy..........................................Refer to the AO Absolute Accuracy Table

Maximum update rate

1 channel .....................................2.86 MS/s

2 channels ...................................2.00 MS/s

3 channels ...................................1.54 MS/s

4 channels ...................................1.25 MS/s

Timing accuracy ..............................50 ppm of sample rate

Timing resolution ............................50 ns

Output range ....................................offset ± reference, includes ±10 V, ±5 V, ±2 V, and ±1 V calibrated ranges

Offset ..........................................0 V, 5 V, APFI <0..1>, AO <0..3>1

Reference ....................................10 V, 5 V, 2 V, 1 V, APFI <0..1>, AO <0..3>1

Maximum output level................±11 V

Output coupling...............................DC

Output impedance ...........................0.2 Ω

Output current drive ........................±5 mA

Overdrive protection .......................±25 V

Overdrive current ............................20 mA

Power-on state .................................±5 mV

Power-on glitch ...............................2.3 V peak for 1.2 s

Output FIFO size .............................8,191 samples shared among channels used

Data transfers...................................DMA (scatter-gather), interrupts, programmed I/O

1 An AO channel cannot be a reference or offset to itself.


AO waveform modes:

• Non-periodic waveform

• Periodic waveform regeneration mode from onboard FIFO

• Periodic waveform regeneration from host buffer including dynamic update

Settling time, full scale step15 ppm (1 LSB)...............................3 μs

Slew rate ..........................................20 V/μs

Glitch energy at midscale transition, ±10 V range

Magnitude ...................................15 mV

Duration ......................................0.5 μs

External ReferenceAPFI <0..1> characteristics

Input impedance..........................10 kΩCoupling......................................DC

Protection

Power on.................................±30 V

Power off ................................±15 V

Range...............................................±11 V

Calibration (AI and AO)Recommended warm-up time......... 15 minutes

Calibration interval ......................... 2 years

AO <0..3> Analog Output External Reference Bandwidth

–90–100

–80–70–60–50–40–30–20–10

010

100 1 k 10 k 100 k 1 MFrequency (Hz)

Nor

mal

ized

AO

Am

plitu

deA

ttenu

atio

n (d

B)

8003

800F

803F

80FF83FF8FFFBFFF

FFFF

DAC Output CODE (HEX)


AI A

bsol

ute

Accu

racy

Tab

le (F

ilter

On)

Nom

inal

Ran

geR

esid

ual

Gai

n E

rror

(p

pm o

f R

eadi

ng)

Gai

n Te

mpc

o (p

pm/°

C)

Ref

eren

ce

Tem

pco

Res

idua

l O

ffse

t Err

or

(ppm

of

Ran

ge)

Off

set

Tem

pco

(ppm

of

Ran

ge/°

C)

INL

Err

or

(ppm

of

Ran

ge)

Ran

dom

N

oise

,σ

(μV

rms)

Abs

olut

e A

ccur

acy

at F

ull

Scal

e1 (μ

V)

Sens

itiv

ity2

(μV

)P

osit

ive

Ful

lSca

leN

egat

ive

Ful

lSca

le

10–1

040

171

811

1060

980

24

5–5

4517

18

1110

3051

012

2–2

4517

18

1310

1221

04.

8

1–1

5517

115

1510

712

02.

8

0.5

–0.

555

171

3020

104

701.

6

0.2

–0.

275

171

4535

103

391.

2

0.1

–0.

112

017

160

6010

228

0.8

Acc

urac

ies

list

ed a

re v

alid

for

up

to tw

o ye

ars

from

the

devi

ce e

xter

nal c

alib

ratio

n.

Abs

olut

eAcc

urac

y =

Rea

ding

· (G

ainE

rror

) +

Ran

ge ·

(Off

setE

rror

) +

Noi

seU

ncer

tain

tyG

ainE

rror

= R

esid

ualA

IGai

nErr

or +

Gai

nTem

pco

· (Te

mpC

hang

eFro

mL

astI

nter

nalC

al)

+ R

efer

ence

Tem

pco

· (Te

mpC

hang

eFro

mL

astE

xter

nalC

al)

Off

setE

rror

= R

esid

ualA

IOff

setE

rror

+ O

ffse

tTem

pco

· (Te

mpC

hang

eFro

mL

astI

nter

nalC

al)

+ I

NL

_Err

or

1 A

bsol

ute

accu

racy

at f

ull s

cale

on

the

anal

og in

put c

hann

els

is d

eter

min

ed u

sing

the

foll

owin

g as

sum

ptio

ns:

Tem

pCha

ngeF

rom

Las

tExt

erna

lCal

= 1

0°C

Tem

pCha

ngeF

rom

Las

tInt

erna

lCal

= 1

°Cnu

mbe

r_of

_rea

ding

s =

100

Cov

erag

eFac

tor

= 3

σ

For

exam

ple,

on

the

10 V

ran

ge, t

he a

bsol

ute

accu

racy

at f

ull s

cale

is a

s fo

llow

s:G

ainE

rror

= 4

0 pp

m +

17

ppm

· 1

+ 1

ppm

· 10

Gai

nErr

or =

67

ppm

Off

setE

rror

= 8

ppm

+ 1

1 pp

m ·

1 +

10

ppm

O

ffse

tErr

or =

29

ppm

Abs

olut

eAcc

urac

y =

10

V ·

(Gai

nErr

or)

+ 1

0 V

· (O

ffse

tErr

or)

+ N

oise

Unc

erta

inty

Abs

olut

e A

ccur

acy

= 9

80 μ

V

2 Se

nsiti

vity

is th

e sm

alle

st v

olta

ge c

hang

e th

at c

an b

e de

tect

ed. I

t is

a fu

nctio

n of

noi

se.

Noi

seU

ncer

tain

tyR

ando

mN

oise

3⋅10

0----

--------

--------

--------

--------

-----

=Fo

r a c

over

age

fact

or o

f 3 σ

and

ave

ragi

ng 1

00 p

oint

s.

Noi

seU

ncer

tain

ty60

μV

3⋅10

0----

--------

--------

----=

Noi

seU

ncer

tain

ty18

μV

=


AI A

bsol

ute

Accu

racy

Tab

le (F

ilter

Off)

Nom

inal

Ran

geR

esid

ual

Gai

n E

rror

(p

pm o

f R

eadi

ng)

Gai

n Te

mpc

o (p

pm/°

C)

Ref

eren

ce

Tem

pco

Res

idua

l O

ffse

t Err

or

(ppm

of

Ran

ge)

Off

set

Tem

pco

(ppm

of

Ran

ge/°

C)

INL

Err

or

(ppm

of

Ran

ge)

Ran

dom

N

oise

,σ

(μV

rms)

Abs

olut

e A

ccur

acy

at F

ull

Scal

e1 (μ

V)

Sens

itiv

ity2

(μV

)P

osit

ive

Ful

lSca

leN

egat

ive

Ful

lSca

le

10–1

045

171

1011

1070

1050

28.0

5–5

5017

110

1110

3555

014

.0

2–2

5017

110

1310

1523

06.

0

1–1

6017

117

1510

1213

04.

8

0.5

–0.

560

171

3220

1010

804.

0

0.2

–0.

280

171

4735

109

433.

6

0.1

–0.

112

017

162

6010

931

3.6

Acc

urac

ies

list

ed a

re v

alid

for

up

to tw

o ye

ars

from

the

devi

ce e

xter

nal c

alib

ratio

n.

Abs

olut

eAcc

urac

y =

Rea

ding

· (G

ainE

rror

) +

Ran

ge ·

(Off

setE

rror

) +

Noi

seU

ncer

tain

tyG

ainE

rror

= R

esid

ualA

IGai

nErr

or +

Gai

nTem

pco

· (Te

mpC

hang

eFro

mL

astI

nter

nalC

al)

+ R

efer

ence

Tem

pco

· (Te

mpC

hang

eFro

mL

astE

xter

nalC

al)

Off

setE

rror

= R

esid

ualA

IOff

setE

rror

+ O

ffse

tTem

pco

· (Te

mpC

hang

eFro

mL

astI

nter

nalC

al)

+ I

NL

_Err

or

1 A

bsol

ute

accu

racy

at f

ull s

cale

on

the

anal

og in

put c

hann

els

is d

eter

min

ed u

sing

the

foll

owin

g as

sum

ptio

ns:

Tem

pCha

ngeF

rom

Las

tExt

erna

lCal

= 1

0°C

Tem

pCha

ngeF

rom

Las

tInt

erna

lCal

= 1

°Cnu

mbe

r_of

_rea

ding

s =

100

Cov

erag

eFac

tor

= 3

σ

For

exam

ple,

on

the

10 V

ran

ge, t

he a

bsol

ute

accu

racy

at f

ull s

cale

is a

s fo

llow

s:G

ainE

rror

= 4

5 pp

m +

17

ppm

· 1

+ 1

ppm

· 10

Gai

nErr

or =

72

ppm

Off

setE

rror

= 1

0 pp

m +

11

ppm

· 1

+ 1

0 pp

m

Off

setE

rror

= 3

1 pp

m

Abs

olut

eAcc

urac

y =

10

V ·

(Gai

nErr

or)

+ 1

0 V

· (O

ffse

tErr

or)

+ N

oise

Unc

erta

inty

Abs

olut

e A

ccur

acy

= 1

050

μV

2 Se

nsiti

vity

is th

e sm

alle

st v

olta

ge c

hang

e th

at c

an b

e de

tect

ed. I

t is

a fu

nctio

n of

noi

se.

Noi

seU

ncer

tain

tyR

ando

mN

oise

3⋅10

0----

--------

--------

--------

--------

-----

=Fo

r a c

over

age

fact

or o

f 3 σ

and

ave

ragi

ng 1

00 p

oint

s.

Noi

seU

ncer

tain

ty70

μV

3⋅10

0----

--------

--------

----=

Noi

seU

ncer

tain

ty21

μV

=


AO A

bsol

ute

Accu

racy

Tab

le

Nom

inal

Ran

geR

esid

ual G

ain

Err

or (p

pm o

f R

eadi

ng)

Gai

n T

empc

o (p

pm/°

C)

Ref

eren

ce

Tem

pco

Res

idua

l O

ffse

t E

rror

(p

pmof

R

ange

)

Off

set T

empc

o (p

pm o

f R

ange

/°C

)

INL

Err

or

(ppm

of

Ran

ge)

Abs

olut

e A

ccur

acy

at

Ful

l Sca

le1

(μV

)P

osit

ive

Ful

lSca

leN

egat

ive

Ful

lSca

le

10–1

055

151

3012

3215

40

5–5

6015

130

1732

820

2–2

6525

140

3032

404

1–1

8525

157

5032

259

1 A

bsol

ute

Acc

urac

y at

ful

l sca

le n

umbe

rs is

val

id im

med

iate

ly f

ollo

win

g in

tern

al c

alib

rati

on a

nd a

ssum

e th

e de

vice

is o

pera

ting

with

in 1

0°C

of

the

last

ext

erna

l cal

ibra

tion.

A

ccur

acie

s li

sted

are

val

id f

or u

p to

two

year

s fr

om th

e de

vice

ext

erna

l cal

ibra

tion.

Abs

olut

eAcc

urac

y =

Out

putV

alue

· (G

ainE

rror

) +

Ran

ge ·

(Off

setE

rror

)G

ainE

rror

= R

esid

ualG

ainE

rror

+ G

ainT

empc

o · (

Tem

pCha

ngeF

rom

Las

tInt

erna

lCal

) +

Ref

eren

ceTe

mpc

o · (

Tem

pCha

ngeF

rom

Las

tExt

erna

lCal

)O

ffse

tErr

or =

Res

idua

lOff

setE

rror

+ A

OO

ffse

tTem

pco

· (Te

mpC

hang

eFro

mL

astI

nter

nalC

al)

+ I

NL

_Err

or


Digital I/O/PFIStatic CharacteristicsNumber of channels

NI 6280/NI 6281.........................24 total8 (P0.<0..7>)16 (PFI <0..7>/P1, PFI <8..15>/P2)

NI 6284/NI 6289.........................48 total32 (P0.<0..31>)16 (PFI <0..7>/P1, PFI <8..15>/P2)

I/O type .......................................5 V TTL/CMOS compatible

Ground reference.............................D GND

Direction control..............................Each terminal individually programmable as input or output

Pull-down resistor............................50 kΩ typical20 kΩ minimum

Input voltage protection1 .................±20 V on up to 2 pins

Waveform Characteristics (Port 0 Only)Terminals used

NI 6280/NI 6281.........................Port 0 (P0.<0..7>)

NI 6284/NI 6289.........................Port 0 (P0.<0..31>)

Port/sample size

NI 6280/NI 6281.........................Up to 8 bits

NI 6284/NI 6289.........................Up to 32 bits

Waveform generation(DO) FIFO.......................................2,047 samples

Waveform acquisition(DI) FIFO ........................................2,047 samples

DO or DI Sample Clock frequency ..............................0 to 10 MHz

DO or DI Sample Clock source2...................................Any PFI, RTSI,

AI Sample or Convert Clock, AO Sample Clock, Ctr n Internal Output, and many other signals

PFI/Port 1/Port 2 FunctionalityFunctionality ................................... Static digital input,

static digital output, timing input, timing output

Timing output sources .................... Many AI, AO, counter, DI, DO timing signals

Debounce filter settings .................. 125 ns, 6.425 μs, 2.54 ms, disable; high and low transitions; selectable per input

Recommended Operation Conditions

Electrical Characteristics

1 Stresses beyond those listed under Input voltage protection may cause permanent damage to the device.2 The digital subsystem does not have its own dedicated internal timing engine. Therefore, a sample clock must be provided

from another subsystem on the device or an external source.

Level Min Max

Input high voltage (VIH) 2.2 V 5.25 V

Input low voltage (VIL) 0 V 0.8 V

Output high current (IOH)

P0.<0..31>

PFI <0..15>/P1/P2

—

—

–24 mA

–16 mA

Output low current (IOL)

P0.<0..31>

PFI <0..15>/P1/P2

—

—

24 mA

16 mA

Level Min Max

Positive-going threshold (VT+) — 2.2 V

Negative-going threshold (VT–) 0.8 V —

Delta VT hysteresis (VT+ – VT–) 0.2 V —

IIL input low current (Vin = 0 V)

IIH input high current (Vin = 5 V)

—

—

–10 μA

250 μA


Digital I/O Characteristics

–50

–45

–40

–35

–30

–25

–20

–15

–10

–5

0

2 3 4 5 6Voh (V)

I oh

(mA

)

0 °C; Vdd = 5.5 V

55 °C; Vdd = 4.5 V

25 °C; Vdd = 5.0 V

Digital I/O (P0.<0..31>): Ioh versus Voh

–50

–45

–40

–35

–30

–25

–20

–15

–10

–5

0

2 3 4 5 6Voh (V)

I oh

(mA

)

Digital I/O (PFI<0..15>/P1/P2): Ioh versus Voh

0 °C; Vdd = 5.5 V

55 °C; Vdd = 4.5 V

25 °C; Vdd = 5.0 V

0

5

10

15

20

25

30

35

40

0 0.2 0.4 0.6 0.8 1 1.2Vol (V)

I ol (

mA

)

Digital I/O (P0.<0..31>): Iol versus Vol

0 °C; Vdd = 5.5 V

55 °C; Vdd = 4.5 V

25 °C; Vdd = 5.0 V

0

5

10

15

20

25

30

35

40

0 0.2 0.4 0.6 0.8 1 1.2Vol (V)

I ol (

mA

)

Digital I/O (PFI<0..15>/P1/P2): Iol versus Vol

0 °C; Vdd = 5.5 V

55 °C; Vdd = 4.5 V

25 °C; Vdd = 5.0 V


General-Purpose Counter/TimersNumber of counter/timers ...............2

Resolution........................................32 bits

Counter measurements ....................Edge counting, pulse, semi-period, period, two-edge separation

Position measurements ....................X1, X2, X4 quadrature encoding with Channel Z reloading; two-pulse encoding

Output applications..........................Pulse, pulse train with dynamic updates, frequency division, equivalent time sampling

Internal base clocks .........................80 MHz, 20 MHz, 100 kHz

External base clock frequency.........0 to 20 MHz

Base clock accuracy ........................50 ppm

Inputs ...............................................Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down

Routing options for inputs...............Any PFI, RTSI, PXI_TRIG, PXI_STAR, analog trigger, many internal signals

FIFO ................................................2 samples

Data transfers...................................Dedicated scatter-gather DMA controller for each counter/timer; interrupts;programmed I/O

Frequency GeneratorNumber of channels.........................1

Base clocks ......................................10 MHz, 100 kHz

Divisors ...........................................1 to 16

Base clock accuracy ........................50 ppm

Output can be available on any PFI or RTSI terminal.

Phase-Locked Loop (PLL)Number of PLLs ............................. 1

Reference signal.............................. PXI_STAR, PXI_CLK10, RTSI <0..7>

Output of PLL................................. 80 MHz Timebase; other signals derived from 80 MHz Timebase including 20 MHz and 100 kHz Timebases

External Digital TriggersSource ............................................. Any PFI, RTSI,

PXI_TRIG, PXI_STAR

Polarity............................................ Software-selectable for most signals

Analog input function ..................... Start Trigger, Reference Trigger, Pause Trigger, Sample Clock, Convert Clock, Sample Clock Timebase

Analog output function ................... Start Trigger, Pause Trigger, Sample Clock, Sample Clock Timebase

Counter/timer function.................... Gate, Source, HW_Arm, Aux, A, B, Z, Up_Down

Digital waveform generation(DO) function.................................. Sample Clock

Digital waveform acquisition(DI) function ................................... Sample Clock

Device-To-Device Trigger BusPCI devices ..................................... RTSI <0..7>1

PXI devices ..................................... PXI_TRIG <0..7>, PXI_STAR

Output selections............................. 10 MHz Clock; frequency generator output; many internal signals

Debounce filter settings .................. 125 ns, 6.425 μs, 2.54 ms, disable; high and low transitions; selectable per input

1 In other sections of this document, RTSI refers to RTSI <0..7> for PCI devices or PXI_TRIG <0..7> for PXI devices.


Bus InterfacePCI or PXI ...................................... 3.3 V or 5 V signal

environment

DMA channels ................................ 6, analog input, analog output, digital input, digital output, counter/timer 0, counter/timer 1

All PXI-628x devices support one of the following features:

• May be installed in PXI Express hybrid slots

• Or, may be used to control SCXI in PXI/SCXI combo chassis

Power RequirementsCurrent draw from bus during no-load condition

+5 V............................................ 0.03 A

+3.3 V......................................... 0.78 A

+12 V.......................................... 0.40 A

–12 V .......................................... 0.06 A

Current draw from bus during AI and AO overvoltage condition

+5 V............................................ 0.03 A

+3.3 V......................................... 1.26 A

+12 V.......................................... 0.43 A

–12 V .......................................... 0.06 A

Power available from+5 V terminal ..................................1 A max, each connector,

with self-resetting fuse

Other power limit for PXI devices................................Current drawn from

+5 V terminals and all P0/PFI/P1/P2 terminals should not exceed 2 A

Physical RequirementsPrinted circuit board dimensions

NI PCI-6280/6281/6284/6289 ....10.6 cm × 15.5 cm (4.2 in. × 6.1 in.)

NI PXI-6280/6281/6284/6289 ....Standard 3U PXI

Weight

NI PCI-6280................................151 g (5.3 oz)

NI PCI-6281................................158 g (5.6 oz)

NI PCI-6284................................159 g (5.6 oz)

NI PCI-6289................................167 g (5.9 oz)

NI PXI-6280 ...............................218 g (7.7 oz)

NI PXI-6281 ...............................225 g (7.9 oz)

NI PXI-6284 ...............................229 g (8.1 oz)

NI PXI-6289 ...............................237 g (8.4 oz)

I/O connector

NI 6280/NI 6281.........................1 68-pin VHDCI

NI 6284/NI 6289.........................2 68-pin VHDCI

Maximum Working Voltage1

NI 6280/NI 6281/NI 6284/NI 6289Channel to earth ..............................11 V,

Measurement Category I

Caution Do not use for measurements within Categories II, III, or IV.

EnvironmentalOperating temperature.....................0 to 55 °C

Storage temperature.........................–20 to 70 °C

Humidity..........................................10 to 90% RH, noncondensing

Maximum altitude ...........................2,000 m

Pollution Degree(indoor use only) .............................2

Table 1. PXI and PXI Express Chassis

DevicePart

Number

SCXI Control in PXI/SCXI

Combo Chassis

PXI Express Hybrid Slot Compatible

PXI-6280 191501C-04 No Yes

PXI-6281 191501C-03 No Yes

PXI-6284 191501C-02 No Yes

PXI-6289 191501C-01 No Yes

191501C-11 Yes No

Earlier versions of PXI-628x

191501A-0x191501B-0x

Yes No

1 Maximum working voltage refers to the signal voltage plus the common-mode voltage.


Shock and Vibration (PXI Devices Only)Operational shock............................30 g peak, half-sine,

11 ms pulse (Tested in accordance with IEC-60068-2-27. Test profile developed in accordance with MIL-PRF-28800F.)

Random vibration

Operating ....................................5 to 500 Hz, 0.3 grms

Nonoperating ..............................5 to 500 Hz, 2.4 grms (Tested in accordance with IEC-60068-2-64. Nonoperating test profile exceeds the requirements of MIL-PRF-28800F, Class 3.)

SafetyThis product is designed to meet the requirements of the following standards of safety for electrical equipment for measurement, control, and laboratory use:

• IEC 61010-1, EN 61010-1

• UL 61010-1, CSA 61010-1

Note For UL and other safety certifications, refer to the product label or visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

Electromagnetic CompatibilityThis product is designed to meet the requirements of the following standards of EMC for electrical equipment for measurement, control, and laboratory use:

• EN 61326 EMC requirements; Minimum Immunity

• EN 55011 Emissions; Group 1, Class A

• CE, C-Tick, ICES, and FCC Part 15 Emissions; Class A

Note For EMC compliance, operate this device according to product documentation.

CE ComplianceThis product meets the essential requirements of applicable European Directives, as amended for CE marking, as follows:

• 73/23/EEC; Low-Voltage Directive (safety)

• 89/336/EEC; Electromagnetic Compatibility Directive (EMC)

Note Refer to the Declaration of Conformity (DoC) for this product for any additional regulatory compliance information. To obtain the DoC for this product, visit ni.com/certification, search by model number or product line, and click the appropriate link in the Certification column.

Waste Electrical and Electronic Equipment (WEEE)

EU Customers At the end of their life cycle, all products must be sent to a WEEE recycling center. For more information about WEEE recycling centers and National Instruments WEEE initiatives, visit ni.com/environment/weee.htm.


Figure 1. NI 6280 Pinout

CO

NN

EC

TOR

0(A

I 0-1

5)

D GND

D GND

PFI 8/P2.0

PFI 7/P1.7

PFI 15/P2.7

PFI 13/P2.5

PFI 4/P1.4

PFI 3/P1.3

PFI 2/P1.2

D GND

PFI 10/P2.2

PFI 11/P2.3

P0.3

P0.7

P0.2

D GND

P0.5

P0.0

D GND

NC

NC

AI GND

AI 7

AI 14

AI GND

AI 5

AI 12

AI SENSE

AI 11

AI GND

AI 2

AI 9

AI GND

AI 0

PFI 14/P2.6

PFI 9/P2.1

D GND

PFI 5/P1.5

D GND

+5 V

D GND

PFI 12/P2.4

PFI 6/P1.6

PFI 1/P1.1

PFI 0/P1.0

D GND

D GND

+5 V

D GND

P0.6

P0.1

D GND

P0.4

APFI 0

NC

NC

AI 15

AI GND

AI 6

AI 13

AI GND

AI 4

AI GND

AI 3

AI 10

AI GND

AI 1

AI 868 34

67 33

66 32

65 31

64 30

63 29

62 28

61 27

60 26

59 25

58 24

57 23

56 22

55 21

54 20

53 19

52 18

51 17

50 16

49 15

48 14

47 13

46 12

45 11

44 10

43 9

42 8

41 7

40 6

39 5

38 4

37 3

36 2

35 1

TERMINAL 34TERMINAL 68


NC = No Connect



CO

NN

EC

TOR

0(A

I 0-1

5)

D GND

D GND

PFI 8/P2.0

PFI 7/P1.7

PFI 15/P2.7

PFI 13/P2.5

PFI 4/P1.4

PFI 3/P1.3

PFI 2/P1.2

D GND

PFI 10/P2.2

PFI 11/P2.3

P0.3

P0.7

P0.2

D GND

P0.5

P0.0

D GND

AO GND

AO GND

AI GND

AI 7

AI 14

AI GND

AI 5

AI 12

AI SENSE

AI 11

AI GND

AI 2

AI 9

AI GND

AI 0

PFI 14/P2.6

PFI 9/P2.1

D GND

PFI 5/P1.5

D GND

+5 V

D GND

PFI 12/P2.4

PFI 6/P1.6

PFI 1/P1.1

PFI 0/P1.0

D GND

D GND

+5 V

D GND

P0.6

P0.1

D GND

P0.4

APFI 0

AO 1

AO 0

AI 15

AI GND

AI 6

AI 13

AI GND

AI 4

AI GND

AI 3

AI 10

AI GND

AI 1

AI 868 34

67 33

66 32

65 31

64 30

63 29

62 28

61 27

60 26

59 25

58 24

57 23

56 22

55 21

54 20

53 19

52 18

51 17

50 16

49 15

48 14

47 13

46 12

45 11

44 10

43 9

42 8

41 7

40 6

39 5

38 4

37 3

36 2

35 1





CO

NN

EC

TOR

0(A

I 0-1

5)

CO

NN

EC

TOR

1(A

I 16-

31)

D GND

D GND

PFI 8/P2.0

PFI 7/P1.7

PFI 15/P2.7

PFI 13/P2.5

PFI 4/P1.4

PFI 3/P1.3

PFI 2/P1.2

D GND

PFI 10/P2.2

PFI 11/P2.3

P0.3

P0.7

P0.2

D GND

P0.5

P0.0

D GND

NC

NC

AI GND

AI 7

AI 14

AI GND

AI 5

AI 12

AI SENSE

AI 11

AI GND

AI 2

AI 9

AI GND

AI 0

PFI 14/P2.6

PFI 9/P2.1

D GND

PFI 5/P1.5

D GND

+5 V

D GND

PFI 12/P2.4

PFI 6/P1.6

PFI 1/P1.1

PFI 0/P1.0

D GND

D GND

+5 V

D GND

P0.6

P0.1

D GND

P0.4

APFI 0

NC

NC

AI 15

AI GND

AI 6

AI 13

AI GND

AI 4

AI GND

AI 3

AI 10

AI GND

AI 1

AI 868 34

67 33

66 32

65 31

64 30

63 29

62 28

61 27

60 26

59 25

58 24

57 23

56 22

55 21

54 20

53 19

52 18

51 17

50 16

49 15

48 14

47 13

46 12

45 11

44 10

43 9

42 8

41 7

40 6

39 5

38 4

37 3

36 2

35 1 AI 24

AI 17

AI GND

AI 26

AI 19

AI GND

AI 20

AI GND

AI 29

AI 22

AI GND

AI 31

NC

NC

APFI 1

P0.12

D GND

P0.9

P0.14

D GND

+5 V

D GND

D GND

P0.16

P0.17

D GND

+5 V

D GND

P0.21

P0.22

D GND

P0.25

P0.28

P0.30

AI 16

AI 25

AI 18

AI 27

AI SENSE 2

AI 28

AI 21

AI GND

AI GND

AI GND

AI 30

AI 23

AI GND

NC

NC

D GND

P0.8

P0.13

D GND

P0.10

P0.15

P0.11

P0.27

P0.26

D GND

P0.18

P0.19

P0.20

P0.29

P0.31

P0.23

P0.24

D GND

D GND1 35

2 36

3 37

4 38

5 39

6 40

7 41

8 42

9 43

10 44

11 45

12 46

13 47

14 48

15 49

16 50

17 51

18 52

19 53

20 54

21 55

22 56

23 57

24 58

25 59

26 60

27 61

28 62

29 63

30 64

31 65

32 66

33 67

34 68

TERMINAL 34

TERMINAL 68

TERMINAL 35

TERMINAL 1

TERMINAL35

TERMINAL 1

TERMINAL 34

TERMINAL 68

NC = No Connect NC = No Connect

National Instruments, NI, ni.com, and LabVIEW are trademarks of National Instruments Corporation. Refer to the Terms of Use section on ni.com/legal for more information about National Instruments trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering National Instruments products, refer to the appropriate location: Help»Patents in your software, the patents.txt file on your CD, or ni.com/patents.

© 2004–2007 National Instruments Corporation. All rights reserved. 371292E-01 Apr07


CO

NN

EC

TOR

0(A

I 0-1

5)

CO

NN

EC

TOR

1(A

I 16-

31)

D GND

D GND

PFI 8/P2.0

PFI 7/P1.7

PFI 15/P2.7

PFI 13/P2.5

PFI 4/P1.4

PFI 3/P1.3

PFI 2/P1.2

D GND

PFI 10/P2.2

PFI 11/P2.3

P0.3

P0.7

P0.2

D GND

P0.5

P0.0

D GND

AO GND

AO GND

AI GND

AI 7

AI 14

AI GND

AI 5

AI 12

AI SENSE

AI 11

AI GND

AI 2

AI 9

AI GND

AI 0

PFI 14/P2.6

PFI 9/P2.1

D GND

PFI 5/P1.5

D GND

+5 V

D GND

PFI 12/P2.4

PFI 6/P1.6

PFI 1/P1.1

PFI 0/P1.0

D GND

D GND

+5 V

D GND

P0.6

P0.1

D GND

P0.4

APFI 0

AO 1

AO 0

AI 15

AI GND

AI 6

AI 13

AI GND

AI 4

AI GND

AI 3

AI 10

AI GND

AI 1

AI 868 34

67 33

66 32

65 31

64 30

63 29

62 28

61 27

60 26

59 25

58 24

57 23

56 22

55 21

54 20

53 19

52 18

51 17

50 16

49 15

48 14

47 13

46 12

45 11

44 10

43 9

42 8

41 7

40 6

39 5

38 4

37 3

36 2

35 1 AI 24

AI 17

AI GND

AI 26

AI 19

AI GND

AI 20

AI GND

AI 29

AI 22

AI GND

AI 31

AO 2

AO 3

APFI 1

P0.12

D GND

P0.9

P0.14

D GND

+5 V

D GND

D GND

P0.16

P0.17

D GND

+5 V

D GND

P0.21

P0.22

D GND

P0.25

P0.28

P0.30

AI 16

AI 25

AI 18

AI 27

AI SENSE 2

AI 28

AI 21

AI GND

AI GND

AI GND

AI 30

AI 23

AI GND

AO GND

AO GND

D GND

P0.8

P0.13

D GND

P0.10

P0.15

P0.11

P0.27

P0.26

D GND

P0.18

P0.19

P0.20

P0.29

P0.31

P0.23

P0.24

D GND

D GND1 35

2 36

3 37

4 38

5 39

6 40

7 41

8 42

9 43

10 44

11 45

12 46

13 47

14 48

15 49

16 50

17 51

18 52

19 53

20 54

21 55

22 56

23 57

24 58

25 59

26 60

27 61

28 62

29 63

30 64

31 65

32 66

33 67

34 68

TERMINAL 34

TERMINAL 68

TERMINAL 35

TERMINAL 1

TERMINAL 35

TERMINAL 1

TERMINAL 34

TERMINAL 68

LAMPIRAN B

DATA HASIL PENGUKURAN FRF PADA PELAT T DAN BATANG

TUMPUAN SEDERHANA

LAMPIRAN B.1

DATA HASIL PENGUKURAN FRF PADA PELAT T MENGGUNAKAN MSA HP3566A

LAMPIRAN B.2

DATA HASIL PENGUKURAN FRF PADA PELAT T

MENGGUNAKAN M-DAQ_FRF

A28_8; fspan = 200 Hz; flines = 400; Scan rate = 1X 2,56 fspan

LAMPIRAN B.3

DATA HASIL PENGUKURAN FRF PADA BATANG TUMPUAN

SEDERHANA MENGGUNAKAN M-DAQ_FRF

Batang Tumpuan Sederhana (fspan = 400 Hz; flines = 800; Scan Rate = 1X 2,56 fspan)

LAMPIRAN B.4

DATA HASIL PENGUKURAN FRF PADA BATANG TUMPUAN

SEDERHANA MENGGUNAKAN M-DAQ_SWEPT SINE

Data Domain Waktu Pengukuran Swept Sine pada Batang Tumpuan Sederhana

Batang Tumpuan Sederhana (Start Frequency = 1 Hz; Stop Frequency = 400 Hz; Sampling Frequency = 1024 Hz)



Measurement SetupHardware Setup

RSEStimulus Input Config

RSEResponse Input Config

400

Span Frequency [Hz]

800

Frequency Lines

Rising

Slope

30.00

Level [%]

Dev2/ai0Stimulus Channel

2.0 VStimulus Input Range

Dev2/ai1Response Channel

1.0 VResponse Input Range

1 X 2.56 Span Frequency =

Scan Rate Setting

Trigger Setting

0

Ch. 0: Ch. 1: 0Avg :FRF (Mag-Phase) FRF (Real-Im)Time Domain

1.0

-0.1

0.0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

Time (s)20

Channel 0

1.5

-4.0

-3.5

-3.0

-2.5

-2.0

-1.5

-1.0

-0.5

0.0

0.5

1.0

Time (s)20

Channel 1

0.1

0.0

Frequency (Hz)1535.60 200 400 600 800 1000 1200 1400

Power Spectrum Channel 0

0.1

0.0

Frequency (Hz)1535.60 200 400 600 800 1000 1200 1400


2.0

-4.0

-3.0

-2.0

-1.0

0.0

1.0

Time (s)10

Stimulus

Stimulus Read

Response

Response DummyOverall

Dynamic LaboratoryInstitute Technology of Bandung(c) 2008

SAVE DATAREAD DATA

Avg. Done:

START

Span Frequency [Hz]

Frequency Lines

Tab ControlTab Control 2

X 2.56 Span Frequency =2.56

scan rate

AI Voltage AI Voltage

Stimulus Input ConfigResponse Input Config

Stimulus Input Range

Response Input Range

Stimulus Channel

Response Channel

Sample Clock StartAnalog Edge

Finite Samples

Stimulus

SlopeLevel [%]

0.01100

100

Stimulus

Response

DAQmx Channel

AI.Lowpass.EnableAI.Lowpass.CutoffFreq

XScale.Maximum

Magnitude

AI Voltage

Stimulus Read

1

2

Force/Exp Settings

Force - Exponential

dB On (T)

number of averagesaveraging mode

No averagingAveraging Mode

Number of Averages

Avg :

1000

engineering unitssensor sensitivity [mV/EU]

Response Sensitivity [mV/EU]

Response EU

1000

engineering unitssensor sensitivity [mV/EU]

Stimulus Sensitivity [mV/EU]

Stimulus EU

Magnitude

This structure is used to calculate FRF.

February 1, 2008William - 13103130

Phase

Coherence Coherence 2

Real

Imaginary

Avg. Done:

YScale.NameLbl.Text

Magnitude

YScale.NameLbl.Text

Phase

YScale.NameLbl.Text

Real

YScale.NameLbl.Text

Imaginary

False

Analog 1D WfmNChan NSamp

OK message + warnings10800

Channel 0

Good_0Overload_0Small_0

Overload_1

Small_1Good_1

Response Input Range

Stimulus Input Range

Channel 11

2

OVL

This structure is used to controll the aqcuisition and averaging process


XScale.Maximum

ImaginaryXScale.Maximum

Real

XScale.Maximum

Phase

XScale.Maximum

Coherence 2

XScale.Maximum

Coherence



True

FRF Measurement using M Series DAQ.


Coherence

Magnitude

Phase

Real

Imaginary

Channel 0

Channel 1

True

Coherence

Magnitude

Phase

Coherence 2

Real

Imaginary

Channel 0

Channel 1

True

OK message + warningsThis part is used to controll the file utility.


True

0

False

0

False

Engineering Units

Sweep Settings THD

Hardware Settings

100

Block Duration [ms]

-1.00

Sampling Frequency [Hz]

Dev2

DAQmx device

ao0

Channel

10.00

Max Value [V]

-10.00

Min Value [V]

Default

Config

AO Source

ai0

Stimulus Channel

10.00

Max Value [V]

-10.00

Min Value [V]

RSE

Config

AI Stimulus

Advanced Settings

ai1

Response Channel

10.00

Max Value [V]

-10.00

Min Value [V]

RSE

Config

AI Response

Getting Started Time Domain RMS Level Nyquist Plot Harmonic DistortionsFrequency Response

400

0

50

100

150

200

250

300

350

Frequency [Hz]4000 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380

Magnitude

0 0

Cursor 0 32.9599 NaN

Magnitude

180

-180

-100

-50

0

50

100

Frequency [Hz]4000 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 360 380

Phase

0 0

0 0

Phase

dB

degree

STOP Swept Sine

00:00:00Measurement Elapsed Time:

0

Test Frequency [Hz]

Progress Bar:

START Swept SineQUIT

Quit Programs? Measurement Status

M-DAQ_Swept Sine

Save Data

Read Data

Device Name

Response Channel

Stimulus Channel

Sweep Frequencies

Frequency Spacing

Amplitude [V]

DC Offset [V]

off

Settling Time

Integration Time

Block Duration [ms]

Sampling Frequency [Hz] Maximum Harmonic

Harmonics to Visualize

YScale.MinimumYScale.Maximum

Stimulus

YScale.MinimumYScale.Maximum

Response

OK message + warnings

1

Quit Programs?

Stimulus

Response

RMS Level (response)

RMS Level (stimulus)

% completecurrent processed frequency

elapsed time [s]

YScale.NameLbl.Text


YScale.NameLbl.Text


dB

dB

degree

Phase

Magnitude

YScale.NameLbl.Text

Phase

YScale.NameLbl.Text

Magnitude desired units

Harmonics

THD

YScale.NameLbl.Text

THD

YScale.NameLbl.Text

Harmonics

Stop Swept Sine

statusNyquist Plot

Measurement Elapsed Time:

Test Frequency [Hz]

Progress

True

Start Swept Sine

This Logic is used to do Swept Sine Measurement using DAQmx devices.

Bandung, February 10, 2008William - 13103130

DAQmx device

AO Source

AI Stimulus

AI Response



Phase

Magnitude

Nyquist Plot

THD

True



Phase

Magnitude

Nyquist Plot

THD

True

Save

Read

0

False

0

False

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