Downhole Short-period Seismometer

The GL-BH2 downhole short-period seismometer is the downhole version of GL-CS2 short-period seismometer, applied for downhole seismic observation. Its installation accessories include positioning base, guide device, centralizer and cable strain relief. The three-component mechanical pendulum and feedback circuit are installed inside the sealed cylinder. The bottom of the sealed cylinder is connected with the guide device, and the upper part is connected with the centralizer and cable strain relief.

It is mainly used for natural earthquake observation of national seismic networks, stations and regional seismic networks, reservoir-induced earthquake monitoring, mine seismic monitoring and long-term fixed seismic observation.