第 3 章 模拟测量方法
Post on 02-Feb-2016
124 Views
Preview:
DESCRIPTION
TRANSCRIPT
-
3
Electronic Measurement and Instruments
3
Electronic Measurement and Instruments
123.253.2123.21933.273.2163.2203.273.2163.220
Electronic Measurement and Instruments
4567Q
Electronic Measurement and Instruments
1KFKP2AD536A341KFKP23.75
Electronic Measurement and Instruments
U=IR I=U/R R=U/I P=IU=U2/R=I2R
Electronic Measurement and Instruments
1109Hz1MHz1MHz210-9V 3 (10-110-9) a%Um%Um b%Ux%Ux c(%Ux+%Um)3.1 1.
Electronic Measurement and Instruments
4 Ri//CiRiCi5
Electronic Measurement and Instruments
2.(1) (2)A/D
Electronic Measurement and Instruments
3.2 3.2.1 1.UPUp Um
Electronic Measurement and Instruments
2. u(t)
u(t)=Vpsin(t)=2/T
Electronic Measurement and Instruments
3.2.2 (b)(c)
Electronic Measurement and Instruments
U U(3.2.2)(3.2.2)Urmsu(t)=Vpsin(t)=2/T 3
Electronic Measurement and Instruments
4 ()() KF(3.2.3)
Kp (3.2.4)
Electronic Measurement and Instruments
u(t)=Vpsin(t)=2/T
KF
u(t)=Vpsin(t)=2/T
Electronic Measurement and Instruments
1
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.2.2 (ACDC) ACDC
Electronic Measurement and Instruments
AC-DC - - ()
Electronic Measurement and Instruments
1-a. b.
2
u
A
u
A
(
a
)
(
)
(
b
)
Electronic Measurement and Instruments
Electronic Measurement and Instruments
HFJ-83mV300MHz - DA3610kHz1000MHz()1mV10VHFJ-83mV300MHz
Electronic Measurement and Instruments
2-
10MHz
u
A
Electronic Measurement and Instruments
1.
Electronic Measurement and Instruments
2.
Electronic Measurement and Instruments
3. 1) E=kU2
Electronic Measurement and Instruments
Iu(t)V Iu(t)u(t)V
R
u
(
t
)
T
0
T
M
u
A
I
Electronic Measurement and Instruments
DA3010Hz~10MHz1mV~300V
Electronic Measurement and Instruments
2) ------ICAD637 ------
Electronic Measurement and Instruments
4. mV 10MHz
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.2.3 2.
1.
Electronic Measurement and Instruments
u(t)
u(t)u(t)VV
V
(
=
)
u
(
t
)
Electronic Measurement and Instruments
Electronic Measurement and Instruments
kk=1
Electronic Measurement and Instruments
KF
Electronic Measurement and Instruments
3.2.110V9V,
10V
Electronic Measurement and Instruments
Ua10V
Electronic Measurement and Instruments
3.
Electronic Measurement and Instruments
4.
Electronic Measurement and Instruments
3.2.4 3.2.8E0ux
1.3.2.8
Electronic Measurement and Instruments
k().C()i (3.2-13)(3.2-14)(3.2-14)(3.2-14)(3.2-14)
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Vi=Ex-Ef=k(V2- Vo2)
Electronic Measurement and Instruments
ExV2Ex=k1V2 EfVo2Ef =k2Vo2 k1=k2=k ==Vi=Ex-Ef=k(V2- Vo2) Vi=0==Vo=V u(t)
Electronic Measurement and Instruments
Electronic Measurement and Instruments
RMS
Electronic Measurement and Instruments
RMS
Electronic Measurement and Instruments
RMS
Electronic Measurement and Instruments
2.
Electronic Measurement and Instruments
AD536RMS
Electronic Measurement and Instruments
AD536RMS
Electronic Measurement and Instruments
3.2.5
1. 1) 1.
Electronic Measurement and Instruments
1.
Electronic Measurement and Instruments
2)
Electronic Measurement and Instruments
(2)(3)2.(1)
Electronic Measurement and Instruments
3.2.35V
3.
Electronic Measurement and Instruments
4.
Electronic Measurement and Instruments
1.CQ1=Q23.2.6
Electronic Measurement and Instruments
Up
Electronic Measurement and Instruments
Electronic Measurement and Instruments
2.
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.4.
Electronic Measurement and Instruments
5.(1)(2)
Electronic Measurement and Instruments
6.
Electronic Measurement and Instruments
50 50
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.3 3.3.1
Electronic Measurement and Instruments
3.3.2
Electronic Measurement and Instruments
3.3.3
Electronic Measurement and Instruments
(1)1.Uni(2)
Electronic Measurement and Instruments
(3)(4)
Electronic Measurement and Instruments
(1)3.
Electronic Measurement and Instruments
(2)3.
Electronic Measurement and Instruments
4.(1)(2)
Electronic Measurement and Instruments
(1)5.
Electronic Measurement and Instruments
Electronic Measurement and Instruments
(2)Uni
Electronic Measurement and Instruments
Electronic Measurement and Instruments
(3)I-I+
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.4 3.4.1 1.(dB)2.
Electronic Measurement and Instruments
3.(1)dBm(2)dBV4.(VU)
Electronic Measurement and Instruments
3.4.2
Electronic Measurement and Instruments
3.5 3.5.1
Electronic Measurement and Instruments
3.5.2
Electronic Measurement and Instruments
3.5.3 1. T
Electronic Measurement and Instruments
2.T
Electronic Measurement and Instruments
T1000Hz3dB50HzC=103,RT=10K
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3. RCR1=2R2,C1=C2=C,R3=R4=R
Electronic Measurement and Instruments
Electronic Measurement and Instruments
1.3.5.4
Electronic Measurement and Instruments
10% 10%2.(1)(2) (3) (4) (5) (6) (7)
Electronic Measurement and Instruments
3.6.1 3.6
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.6.3 3.6.2
Electronic Measurement and Instruments
Q Q=2 / 1 2 D Q 3 3.7 Q
Electronic Measurement and Instruments
3.7 Q3.7.1 Q
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3.7.2 1 YZ 2
Electronic Measurement and Instruments
3.7.2 ZXZ4Z2Z3 1 ZX2 3 ZX=RXZ2=R2Z3=R3Z4=R47.12 RXR2R3R4 (4)10-5
Electronic Measurement and Instruments
3.7.2 1.
Electronic Measurement and Instruments
Electronic Measurement and Instruments
2.
Electronic Measurement and Instruments
Electronic Measurement and Instruments
3. Es1V1KHz 10KHz
top related