腾冲地震台数字化水温观测数据异常分析

腾冲地震台数字化水温记录多次出现数据突跳,影响观测资料质量。引入1套相同型号的水温仪进行对比观测,对可能引起原水温仪数据突跳的因素(静电干扰、供电电压、仪器探头故障等)进行一一排查,结果表明,水温仪主机数据转换模块工作不正常是引起水温数据突跳、阶变的主要原因,仪器供电电压不稳、雷电因素对数据突跳的产生有促进作用。消除水温数据突跳干扰的有效解决办法是更换1套水温观测仪器。

About anomaly of digital water temperature observation data at Tengchong Seismic Station

The digital high water temperature data showed impulse jumps abruptly continuously, which greatly interfere the effective analysis and usage of the observation data. To check the influence factors (such as electrostatic interference, power supply voltage, instrument probe malfunction, etc), one same type of instrument was installed and comparative observation test was carried out. The result of test indicates that the malfunction of A/D conversion module of original water temperature equipment host is the main cause of the data jumps, and the voltage instable of instrument power supply, lightning factors also play a promoting role on the water data jumps. Replacing a set of water temperature observation instruments (host) is an effective solution to eliminate water temperature data jumps.