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Hanhai Opto-electronic is a major scientific research achievement transformation institution of the Hefei Institute of Physical Science, Chinese Academy of Sciences.
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Hanhai laser monitoring products have industry-leading measurement accuracy, resolution, anti-interference performance and reliability.
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The company's core technology has been jointly recommended by the Ministry of Emergency Management, the Ministry of Science and Technology, and the Ministry of Industry and Information Technology.
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Optical fiber methane monitoring device

Technical Advisory Services

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Product Description

Optical fiber methane monitoring device is used in coal mine roadway. The monitoring terminals are placed at various monitoring points without power supply to form a passive on-line monitoring network for gas leakage.

As a supplement of gas monitoring, the system can monitor gas condition in mine without electricity after gas accident, and provide basis for emergency rescue.

Independent research and development

Active monitoring

Maintenance-free

High sensitivity

No false positives

Zero false negatives

Strong anti-interference

Application Scenarios

The photosensitive terminals are placed at various monitoring points without power supply and are connected with the system mainframe through optical fiber to form a passive monitoring network in the mine, it can realize the essential safety gas monitoring work of real-time monitoring micro-gas leakage without power distribution.

The photosensitive terminal installed in the mine has the functions of automatic calibration and temperature compensation under passive condition, which can realize on-line continuous measurement at multiple monitoring points simultaneously and alarm gas over-alarm limit, it can meet the needs of real-time monitoring and early warning of multi-point gas concentration in coal mine.

Coal mine