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Hanvy - Distributed Optical Fiber Temperature / Strain Sensing System (DSS/DTSS)
The distributed optical fiber temperature / strain sensing technology system measures the frequency and intensity of the self-published Brillouin scattered light by injecting pulsed light into the sensing fiber and using the fiber`s spontaneous backward Brillouin scattered light as a useful signal. Distributed temperature measurement is an ideal tool for long-distance distributed fiber-optic sensor measurement.It can detect up to 62 miles. Scope of application: petroleum pipelines, oil and gas pipelines, buildings, petroleum storage tanks, subway tunnels, coal belt conveyors, smart pipe corridors, warehouses, bridges, power cables, natural gas stations, borders, PCCP pipelines, high-speed rail tunnels, ancient buildings, geological surveys , Highways, oil production stations, geothermal exploration, thermal energy storage tanks, oil wells, etc.
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Simultaneous distributed temperature and strain measurement
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Intrinsically safe and resistant to electromagnetic interference
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High measurement accuracy, long-term stability and reliability
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Remote monitoring, automatic alarm trigger
Measurement principle: There is a correlation mechanism between the central frequency of the Brillouin scattering signal and the temperature strain. By transmitting the pulsed light into the sensing fiber, the spontaneous and backward Brillouin scattered light of the fiber is used as a useful signal to perform the frequency shift of the self-published Brillouin scattered light. Demodulate to obtain strain and temperature data.
Can be used for temperature / strain monitoring and fire alarms in smart grids, oil and petrochemicals, and structural health monitoring of bridges and dams.