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BWM1 Acoustic Wave (Acoustic Emission) Monitoring System for Bridges
Model：
BWM1
Description：
BWM1 adopts ARM system architecture, embedded A/D conversion circuit, filtering and conditioning circuit, preamplifier circuit, network port communication, which can be connected to the cloud platform through the router.
Features：
BWM1 can be networked by switches, which are connected to routers to form a large bridge monitoring system
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BWM1 Acoustic Wave (Acoustic Emission) Monitoring System for Bridges
Introduction
BWM1 adopts ARM system architecture, embedded A/D conversion circuit, filtering and conditioning circuit, preamplifier circuit, network port communication, which can be connected to the cloud platform through the router. The POE network cable provides communication link and power supply for BWM1. The acquisition unit is a bandage structure design integrated with the preamplifier circuit board.
BWM1 can be networked by switches, which are connected to routers to form a large bridge monitoring system
System Structure Drawing
Qingcheng Cloud Platform
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The data can be uploaded to the cloud IoT platform (Qingcheng Cloud Platform) for display and analysis.
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AE characteristic parameters: arrival time, amplitude, ringing counts, energy, rise time, duration, RMS, ASL.
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Remote configuration: remotely configuring parameters, controlling start and stop of device, timing configuration and wire breakage rating settings.
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Rating function: automatic rating system, remotely viewing rating results.
Acoustic emission data adopts automatic classification algorithm, intensity level, activity level and comprehensive level are obtained from acoustic emission hit parameters, which can be flexibly set to meet the rating needs of different industry standards.
- Rating parameters: hits, duration, rise time, rise count, ringing count, amplitude, ASL, RMS, energy.
SWAE Software
Data could be downloaded from cloud or send directly to SWAE software for in-depth analysis and processing.
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Positioning analysis, parameter analysis, correlation graph analysis, waveform analysis, Fast Fourier transform, wavelet transform rating analysis, etc.
Technical Specification:
BWM1 Hardware technical specifications
| Channel | Single channel or multi-channel combination |
| Acquisition Mode | Signal triggered / Time triggered |
| Sampling Rate | Maximum sampling rate of 2M points/second for single channel |
| Sampling Precision | 16-bit |
| System Noise | Better than 30dB |
| Dynamic Range | 70dB |
| Input Bandwidth | 10kHz-800kHz |
| Analog Filters | Combination of two high-pass filters at 30kHz and 125kHz, and two low-pass filters at 80kHz and 175kHz; default combinations are bandpass at 30kHz-80kHz or 125kHz-175kHz, fixed at the factory |
| Digital Filters | 256-order FIR filter, configurable as pass-through, high-pass, low-pass, or band-pass within the 0kHz~1000kHz frequency range |
| Sensors | Selectable center frequency of 40/150KHz; two built-in preamp gains of 20/40dB available |
| Data Output | Waveform, parameters, parameter ratings |
| AE Parameters | Arrival time, amplitude, counts, energy, rise time, duration, RMS, ASL |
| Built-in SD Card Capacity | 64GB (expandable to 512GB) |
| Communication Method | Ethernet |
| Power Supply | POE power supply |
| Dimensions | 507mm (including waterproof connector) * 50mm * 43mm |
| Weight | 285g |
| Installation | Strap (clamp) structure |
| Protection Level | IP67 |
| Working Temperature | -30℃ to +70℃ |
| Single Node Wiring Distance | Maximum of 400 meters of network cable for connecting up to 6 devices in series |
Main application
BWM1 monitoring system can be used for wires breaks monitoring of bridge cables, such as suspension bridges, cable-stayed bridges and tied-arch bridges, etc.
It can also be used in traditional acoustic emission detection scenarios such as storage tank inspection and pipeline inspection. Compared with traditional wiring connection method, series connection method is more reasonable and saves installation time.
Storage tank inspection
Pipeline inspection
