Abstract

The application of special sensor correction methods may allow the use of short-period seismometers with an extended frequency range in the absence of broadband sensors to solve a wide range of problems associated with recording low-frequency signals. The paper considers an instrumental correction circuit that uses integrating elements to broaden the frequency range of the SM-3KV seismometer to the low-frequency region. In laboratory conditions, the modified seismometer was calibrated and the device was tested on microseismic noise, explosion, and earthquake records. Our analysis of microseismic noise shows the possibility of using this device for recording and analyzing microseismic noise at frequencies above 0.07 Hz. Analysis of explosion and earthquake records demonstrated that the circuit can be used for seismic monitoring, taking into account the features of the frequency and phase responses of the modified seismometers.

中文翻译：

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扩展短周期传感器频率响应的仪器电路，以SM-3KV地震仪为例

摘要

在没有宽带传感器的情况下，特殊传感器校正方法的应用可以允许使用频率范围扩展的短周期地震仪来解决与记录低频信号有关的各种问题。本文考虑了一种仪器校正电路，该电路使用积分元件将SM-3KV地震仪的频率范围扩展到低频区域。在实验室条件下，对改进的地震仪进行了校准，并对设备进行了微地震噪声，爆炸和地震记录测试。我们对微震噪声的分析表明，可以使用此设备记录和分析高于0.07 Hz的频率的微震噪声。对爆炸和地震记录的分析表明，该电路可用于地震监测，