Vibration acceleration sensor signal conditioning device for mine

Abstract

The invention relates to a vibration acceleration sensor signal conditioning device for a mine. The device comprises an acceleration sensor and a signal conditioning device. The acceleration sensor comprises a vibration acceleration sensor, a fixing device and a mine cable. The signal conditioning device comprises a signal input port, a signal conditioning circuit board, a power supply module, a device shell body and a signal output port. The signal conditioning circuit board comprises a sensor excitation circuit, a decoupling circuit, a filter circuit, a primary integrating circuit, an amplifying circuit, a secondary integrating circuit and an amplifying circuit. During vibration signal collecting in the mine, the sensor is fixed to a measured point through the fixing device. After decoupling, filtering and signal conversion of signals are carried out through the signal conditioning device, a vibration acceleration signal, a speed signal and a displacement signal are output from the signal output port. A user can connect the vibration acceleration sensor signal conditioning device with a signal collecting device according to needs. Different vibration signals can be obtained through the same sensor, so that obtaining of the vibration acceleration signal, the speed signal and the displacement signal is more convenient.

Description

technical field [0001] The invention relates to a signal conditioning device for a vibration signal sensor, in particular to a signal conditioning device for a vibration acceleration sensor used in coal mines. Background technique [0002] Coal is the fossil fuel with the largest storage capacity in the world, and my country is the largest coal consumer and producer in the world. As the main energy source in my country, coal accounts for 70% of the energy structure. At present and for a long time in the future, coal will still occupy a dominant position in the energy structure. It is expected that by 2050, it will still account for primary energy production and consumption more than 50% of. [0003] With the development of the economy, my country's demand for coal will continue to increase, and at the same time put forward higher requirements for coal mines. At present, coal mines are developing towards the four directions of "mining mechanization, direct transportation, mi...

AI Technical Summary

Problems solved by technology

[0012] The signal conditioning device of the generally applied acceleration vibration sensor cannot meet the technical requirements of the national coal safety certification

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