Stock Code: 601869.SH / 06869.HK

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.

Applications
  • Exploration of oil and gas ell resources
  • Engineering structural health monitoring
  • Earthquake disaster monitoring and early warning
  • Underwater detection and security defense
  • Cable dancing monitoring
     
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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