关键词: 矿震传感器, 比较法检验, 频率误差, 幅值误差, 幅值线性度

Abstract: In view of the urgent need for the calibration of mine seismic sensors in China, the CS18VLF vibration system was introduced, and the calibration indexes of frequency error and amplitude error and amplitude linearity were proposed. The experimental results show that the average of maximum frequency error and maximum amplitude error of the new mine seismic sensor are 2.5% and 5.35%, respectively, the average maximum frequency error and maximum amplitude error of the mine seismic sensor after long-term underground use are 3.1%,14.3%, the average of amplitude linearity of the new mine seismic sensor are 0.991, the average of amplitude linearity of long-term underground used are 0.961,the mine seismic sensor after long-term used has the problem of increased frequency and amplitude errors and decreased amplitude linearity , which verifies the feasibility of the test method. According to the verification test results of the old and new mine seismic sensors, it is preliminarily determined that the value of the frequency error is lower than 5% and the value of the amplitude error is lower than 10% and the value of amplitude linearity in higher than 0.97 as the critical values for judging whether the mine seismic sensor is effective.