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AE Signal Acquisition and Processing Board
Model：
4-channel AE board
Description：
There are two kinds of AE acquisition and processing boards, standard 4-channel AE board and E X -parameter 4-channel AE board. Both AE boards are compatible with SEAU3H chassis.
Features：
DAQ module, 4 channels per board, independent 16-bit ADC, max sample rate 10M/s per channel and 1Gb independent cache storage.
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Acoustic Emission Acquisition and Processing Board
We produce two kinds of AE acquisition and processing boards, standard 4-channel AE board and EX-parameter 4-channel AE board. Both AE boards are compatible with SEAU3H chassis. And different combinations of AE board can be selected to meet different requirements.
Standard 4-channel AE board
The standard AE board adopts the design of 4 channels per board, each channel has maximum sampling rate of 10M/s, 16-bit independent ADC, high-speed signal processing, 1GB independent cache board, to ensure that data is not lost; unique hardware real-time digital filter can arbitrarily control the signal bandwidth.
Technical Specifications
| Sampling Specifications | |
| Sampling Rate |
maximum 10MSP/s (sample points per second) per channel; the sampling rate is continuously adjustable; each channel can be set independently |
| Sampling Accuracy | 16 bits |
| Dynamic Range | 85dB |
| Noise Level | <15dB (No load) |
| Maximum Signal Amplitude | 100dB (40dB gain, corresponding to the sensor output of 100mV) |
| Waveform Sampling Length | The maximum single waveform sampling length, each channel can be up to 128k sampling points, the channel can be set independently |
| Trigger Mode | Threshold trigger, time trigger, external trigger, manual trigger |
| Analog Filter |
20kHz, 100kHz, 400kHz three high-pass filters; 100kHz, 400kHz, 1200kHz three low-pass filters; any combination of the two kinds to be set in the software; each channel is independent |
| Hardware Real-time Digital Filter | From 1KHz-2.5MHz frequency range, any value can be set as the pass-through, high-pass, low-pass, band-pass or band-stop filter. |
| AE Module Memory Capacity | 1Gb each AE acquisition board |
| AE Signal Processing | Each acquisition board hardware has AE feature parameters real-time extraction function; the channel can be set independently |
| Waveform Pre-sample Function | Pre-sample length can be up to 128k sampling points. The channel can be set independently |
| AE Feature Parameters | Arrival time, amplitude, counts, duration, energy, rise counts, rise time, RMS, ASL, 12 external parametric, center frequency, peak frequency, 5 partial powers |
| Electrical Specifications | |
| Board Input Voltage | 5V DC |
| Number of Channels per AE Board | Each acquisition board has 4 independent channels |
| AE Signal Input Range | ±10V, it can adjust the signal input voltage range down to ± 5V, ± 2V, ± 1V, or ± 0.1V; the channel can be set independently |
| Response Frequency | 1kHz-2.5MHz (-3dB bandwidth) |
| Preamplifier Power Supply | 28V or 5V phantom power through coaxial cables to the preamplifier or turn off (0V) |
| Input Impedance | 50Ω |
| Power Consumption | 10.5W (4 channels for continuous sampling) |
| LED Indicator Light | Each channel has two indicators, green LED for exceeding the threshold and yellow LED for preamplifier supply |
| Physical | |
| Dimension | 300mm X 100mm |
| Weight | 186g |
| Environment: | |
| Operating Temperature | -10℃ ~ +45℃ |
EX-Parameter 4-Channel AE Board
The EX-Parameter AE board is the standard AE board plus an input port for external inputs. The interface of the external port under the four AE input ports is a 16-pin LEMO female connector, which can acquire the external ±10V analog signals.
If there is external sensor inputs requirement, the EX-Parameter AE board should be used. In every defined time, the system will read the external sensors trough the external parameter port and display the result readings in the software, together with the AE feature parameters.
The EX-Parameter AE board is required to occupy the first board slot followed by the standard 4-channel AE board. The EX-PARA Box is provided for wiring connection to the external input LEMO port.
| Electrical Specifications | |
| External Parameter Acquisition | Supports up to 12 analog external parameters input channels, total external parametric sampling rate 1M |
| External Input Range | ±10V |
| Physical | |
| Dimension | 300mm X 100mm |
| Weight | 186g |
| Environment: | |
| Operating Temperature | -10℃ ~ +45℃ |
