The system can be used for:

Structural Health Monitoring Mapping (SHMM), Deformation Distribution Mapping (DDM), Stress Distribution Mapping (SDM), Stiffness Distribution Mapping (STDM), Residual Stress Distribution Mapping (RSDM), Temperature Distribution Mapping (TDM), Vibration Distribution Mapping (VDM), Impact Detection Mapping (IDM), Leakage Detection Mapping (LDM), Cure Level Distribution Mapping (CLDM), Material Characterization Mapping (MCM), Mass Distribution Mapping (MDM), Thickness Distribution Mapping (ThDM), Corrosion Distribution Mapping (CDM), Structural Safety Mapping (SSM), Deicing & Surface Build-up Removal (DSBR), etc.

Auxiliary tools & algorithms that are part of system's embedded SW:

Transducer Integrity Check Algorithms (TICA), Frequency Response Function Algorithms (FRFA) Optimum Excitation Function Algorithms (OEFA) Structural Damping vs. Frequency Algorithms (SDFA) Wave Velocities Characterization Algorithms (WVCA) Wave Attenuation vs. Direction Algorithms (WADA) Wave Attenuation vs. Frequency Algorithms (WAFA) Wave Propagation Decomposition Algorithms (WPDA) Elastic Moduli Characterization Algorithms (EMCA) Voltage to Strain Conversion Algorithms (VTCA) Ultrasonic Image Reconstruction Algorithms (UIRA) Load Cycle Counting Algorithms (LCCA) Fatigue Life Prediction Algorithms (FLPA) Consumed & Remaining Life Algorithms (CRLA) Crack Growth Monitoring Algorithms (CGMA) Finite Element Method Algorithms (FEMA), etc.

Integrated Phased Array transducer PhA II & PhA III

Physical, technical and performance characteristics: 12 channel PZT transducers for efficient transceiving of ultrasonic waves

Transducers for surface bonding by combination of structural adhesives Mass of the PhA II/PhA III transducer: 12grams Maximum dimensions of the PhA II / PhA III transducers:118 x 40 x 6 [mm] One integrated 30 pin electromechanical microconnector (CMM220 male)

Transducers designed to totally carry & support an SHM device (like, for example, PAMELA III) coupled above, in real service environments, without need for interface cabling (cabling to the transducer is optional)

Integrated PhA II / PhA III transducers EMI shielded Temperature operating range (PhA II & PhA III): -60ºC to +120ºC

Vibration resistant transducers: RTCA/DO-160F (Standard, Robust, Shock) Temperature cycling resistance: 35ºC/min ramps

Integrated nonvolatile memory chip (PhA III) for storing of relevant information about the transducer itself or/and host structure. Readable by PAMELA III

Physical, technical and performance characteristics: PAMELA III mass without/with CFRP protection/EMI shielding box: 265g/365g PAMELA III dimensions with CFRP protection box: 164x164x25mm One 30 pin electromechanical microconnector (CMM220 female) integrated Preferred coupling: directly onto a PhA transducer & without touching the structure

Possible connection via compatible cable to any kind of transducers (optional) 12 channels for simultaneous or independent transceiving 12 arbitrary waveform generators: 10kHz-10MHz Maximum excitation voltage output: ±20V (expandable)

Perform an excitation by easy selectable set of common and arbitrary functions Generators waveform sampling rate: 100MS/s per channel Selectable delay between excitation channels: 0 to 2500ns (10ns step resolution) Memory size of the arbitrary waveform generator: 2ms with 10ns resolution Data acquisition sampling rate: simultaneous 12.5MS/s per channel for 3ms

Possibility to set continuous wave excitation/acquisition tests at different samplings Data acquisition resolution: 12 bits Analog to digital input: 350mV (highest sensitivity for highly attenuated waves) Power supply input: 12V DC; (for optional external accessories 5V DC output) Peak power consumption: 20W (for Plane Front or Transmitter Beamforming) Idle power consumption: 10W (for Impact Detection or BNL acquisition) Embedded PowerPC 400 with embedded Linux OS (32bits) for on-board DSP 100MB of free space to install proprietary or open source algorithms & DSP tools Communication: Ethernet or Wi-Fi (multi hop mesh network) IEEE 802.11s Operating/storage temperature: RT (pending tests [-40ºC,0ºC] & [+30ºC,+80ºC])

Vibration resistant due to: RTCA/DO-160F (Standard, Robust, Shock) Operational modes: Passive & Active, Pulse-Echo, Pitch-Catch Test types implemented: Impact Detection, Base Noise Level acquisition, Simple,

Plane Front, Fast Automatic Round Robin, Time Reversal Simple & Round Robin, Transmitter Beamforming, Transmitter Focusing, Continuous Excitation,

Possibility to set sequence of tests triggered by different parameters (event, time,

voltage, deformation, stress, etc.), repetitive or programmed to perform automatically at specific time, interval or number of times in order to automate SHM testing as more as possible; very useful when testing/monitoring complex structures during long time periods (like for example fatigue tests, etc.).

Integrated “all in one“ electronic device for on-board or off-board

structural health monitoring: PAMELA III

an example of a host structure with the single PAMELA SHM

TM system installed

(for SHM of HTP leading edge rib)

PAMELA SHM™ software modules For efficient SHM, besides reliable HW it is also of huge importance to have an efficient software tools that can control a multiple SHM system. The software must be easy to manage and automated maximally in order to know always where the signals are coming from, in which conditions they were acquired and at what precise moment. At this moment AERnnova SHM has three SW modules PAMELA SHM™ Compositioner, System Controller and Signal Visualizer which were developed, verified and tested during

several years by a group of experts in the field. Graphic User Interfaces of these three modules with the main controllers and indicators are shown on the figures bellow. In order to get the complete overview of performance and tools spectra integrated in each one of these three software modules (test types, functions, controllers, indicators, etc.) it is necessary to consult detailed technical manuals. Besides mentioned SW modules, it should be mentioned that other SW modules related with full PAMELA SHM™ system are to be released in the near future. Just for information, these are: PhA Info Loader (for secure storing of relevant information directly on each PhA III transducer), 2D Map Generator (for generation of 2D SHM maps from sets of acquired raw ultrasonic responses), 3D Map Assembler (for assembly of all 2D maps generated by 2D Map Generator in order to get a full SHM image of the host structure), SHM System On-Line

(for integral and remote management and real time control of monitored structures where ever they are), Signal Visualizer On-line, etc.

PAMELA SHM™ Compositioner (software for spatial positioning of transducers and

SHM devices on/ or inside real and complicated host structures by use of 3D CAD models. It serves also for visualization of wireless communication paths in those structures with the high number of system-network nodes which is of huge utility for optimal positioning and orientation of PhA transducers and antennas)

an example of a wing box demonstrator (without the upper skin) as a closed host structure with

multiple PAMELA SHMTM

system installed above surface bonded PhA transducers

(48 transceiver channels or more on only 1 cable, the one for the 12V DC power supply) Contact: Tel. +34 913 827 808, valerijan.cokonaj@aernnova.com

PAMELA SHM™ System Controller (software for total control of excitation and acquisition for single

or multiple SHM system) PAMELA SHM™ Signal Visualizer (software for visualization of acquired raw ultrasonic

responses, for efficient digital signal preprocessing and extraction of structural features)

Note1: Shown GUI of Signal Visualizer hereinabove is only a small part of the complete

GUI captured for a specific configuration and signal slice. The software allows visualization, signal preprocessing and simultaneous comparison of many complete 12x12 matrices, obtained for different test configurations, making thus possible extraction of all relevant information about structural changes in tested environments and structure boundary conditions. The software is also very useful for quantification of different influences that environmental conditions have on ultrasonic waves, like for example heating or cooling, static or dynamic loading, deformations, different cracks or damages, vibrations, electricity, combination of these, etc. There are implemented tools to easily perform complete signals analysis in time, frequency or both time-frequency domain.

Note2: An implemented easy selectable excitation functions (with posibility for different windowing types) inside the PAMELA SHM™ System Controller software are: Sine,

Inverted Sine, Sine Sweep (Linear & Logarithmic), Inverted Sine Sweep, Impulse, Inverted Impulse, Uniform White Noise, etc. and all of them can be used in each one of above mentioned Test types, the same as any Arbitrary function of interest.

Note3: Functions and controlers limited by a blue rectangular on two rightwards GUI are

not part of PAMELA SHM™ System Controller software but only direct links to future SHM Map Generator software.

Note4: PAMELA SHM™ system won the “Best Practical SHM Solution Award 2012” on the 6th

European Workshop on Structural Health Monitoring. The award certificate was issued by

Deutsche Gesellschaft für Zerstörungsfreie Prüfung e.V. & Fraunhofer-Institut für Zerstörungsfreie Prüfverfahren (IZFP) and sponsored by AIRBUS.