Array type fiber grating wind pressure sensor device for roadway and data transmission system of array type fiber grating wind pressure sensor device

Abstract

The invention provides an array type fiber bragg grating wind pressure sensor device for a roadway and a data transmission system of the array type fiber bragg grating wind pressure sensor device. The array type fiber bragg grating wind pressure sensor device comprises a plurality of wind pressure sensors, a sensor compensation device, a fiber bragg grating demodulator, a wireless module and a remote monitoring system, wherein the wind pressure sensor and the sensor compensation device are connected in series through an optical fiber and then are optically connected with the signal input end of the fiber bragg grating demodulator; the output end of the fiber grating demodulator is electrically connected with the wireless module; the wireless module is in wireless communication connection with the remote monitoring system; the sensor compensation device is arranged among the selected multiple wind pressure sensors; the wind pressure sensors and the sensor compensation devices are arranged in a roadway and distributed in the extending direction of the roadway. The system is suitable for long-term monitoring and multi-point monitoring of roadways.

Description

technical field [0001] The invention belongs to the technical field of long-term monitoring of environmental wind pressure in mine roadways, and in particular relates to an array type fiber grating wind pressure sensor device for roadways and a data transmission system thereof. Background technique [0002] Wind pressure sensor is a commonly used sensor in engineering at present, and is widely used in tunnels, water conservancy, construction, electric power, aviation and other fields. [0003] The current wind pressure sensors can accurately measure single-point wind pressure, but most of them are difficult to achieve long-term monitoring and multi-point monitoring, and long-term monitoring in the roadway, especially the return air roadway, will cause the sensor to accumulate dust, and the long-term monitoring effect is not good , In addition, most of the existing sensing technologies use metal strain gauges to measure wind pressure. When the wind pressure is small, its accu...

AI Technical Summary

Problems solved by technology

[0003] The current wind pressure sensors can accurately measure single-point wind pressure, but most of them are difficult to achieve long-term monitoring and multi-point monitoring, and long-term monitoring in the roadway, especially the return air roadway, will cause the sensor to accumulate dust, and the long-term monitoring effect is not good In addition, most of the existing sensing technologies use metal strain gauges to measure wind pressure. When the wind pressure is small, its accuracy is limited. Sensors, ultrasonic sensors all have interference

To sum up, there is currently a lack of a wind pressure sensor that can monitor long-term multi-points in the roadway and has strong stability and anti-interference ability.

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