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- Engineering structural health monitoring
- Earthquake disaster monitoring and early warning
- Underwater detection and security defense
- Cable dancing monitoring
Distributed Optical Fibre Acoustic Monitoring System YOSC-DAS-M
YOSC-DAS-M distributed optical Fibre acoustic wave monitoring system is a highly reliable, industrial-grade optical fibre vibration sensing product developed by YOSC for industrial applications.
DAS fibre distributed acoustic monitoring system uses the spatial interference phenomenon of backscattered Rayleigh light, and realizes real-time demodulation of frequency, phase, amplitude and position of fast variable acoustic waves through high-speed signal acquisition and data processing technology. It can be widely used in distributed measurement of seismic wave and micro-vibration.
Details
Specification
Documents
Applications
Characteristics
- Measurement of phase, frequency, and amplitude of sound waves at each point within the entire fibre optic range
- Low level parallel computing, fast demodulation speed, and good real-time performance
- Periodic enhancement of scattering loss and high signal-to-noise ratio
- High precision, high stability, and high reliability
System Composition
Specifications
| Items |
YOSC-DAS-M |
|---|---|
| Passageway |
1/2 channel |
| Working wavelength |
1550nm |
| Fibre type | Single mode fibre/self-designed scattering periodic enhanced fibre |
| Measure distance | 10km/20km/40km |
| Spatial resolution |
1m/5m/10m |
| Sound wave frequency response range |
0.5Hz-20kHz |
| Strain resolution |
87.6pε/√Hz |
| Minimum measurable strain |
300pε |
| Dynamic range |
90dB |
| Working temperature |
-10 to 45℃ |
| Communication interface |
Ethernet, USB, RS232 optional |
| Working voltage |
220V |
| Power dissipation |
150w |
| Dimension |
3U rack type, integrated (dimension customizable) |
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