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Fiber optic sensors-based intelligent coal mines, using a distributed fiber optic temperature sensor. (2) Monitoring of the concrete cure process and residual stress, displacement, crack etc of the mine well concrete

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Coal mine Safety | Features | Dec 2007 | Photonics Spectra, Coal mine Safety Intelligent optical fiber sensor systems may help reduce the number of mining disasters. Tongyu Liu, Shandong Micro-sensor Photonics Ltd., and Eric ...

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Design of Conditioning Circuit of Mining Vibration ..., n order to adapt to the harsh conditions of the coal mine, according to the MA Verified standards, we developed a set of vibration acceleration sensor signal ...