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上海台网的浙江横湖、大洋山观测点及佘山地震台等,分别建立在山区和海岛的偏僻地方。台站上的地震仪所记录到的地震信号,通过PTY-8地震遥测设备传送至上海台网记录中心。过去,设备均由地方电网供电。由于农村电网电压变化大,采用电子稳压器来稳定电压是比较困难的。电压的变化会使仪器的工作性能发生变化。尤其是停电时,仪器就被迫中断传输地震信号,这对记录地震资料是不利的。
Zhejiang, Shanghai and Taiwan’s Zhejiang Lake, Dayangshan Observatory and Sheshan Seismic Station, were established in remote areas in the mountains and islands. Earthquake seismographs recorded at the station were sent to the SHENZHEN RECORDING CENTER via the PTY-8 earthquake telemetry equipment. In the past, the equipment was powered by the local grid. As the rural power grid voltage changes, the use of electronic voltage regulator to stabilize the voltage is more difficult. Changes in voltage will change the performance of the instrument. In particular, when a power outage occurs, the instrument is forced to interrupt the transmission of seismic signals, which is detrimental to the recording of seismic data.