数字化气汞观测脉冲高值异常分析

Analysis on the reason for abrupt change in high-value pulsation of digital gas-mercury observation

2008年6月3日夏县断层气汞出现脉冲高值突跳变化，对此从观测环境、仪器运行状况、人为因素等多方面查找原因，通过对比试验、标定仪器等数据，认为此异常是由于气汞仪供电的稳压电源故障所致，非构造运动。此项工作对今后异常的判断、识别提供了依据。

On June 3, 2008, fault producing gas-mercury in Xiaxian Seismic Station showed abrupt change in high-value pulsation. For this abrupt anomaly, we tried to find out the reason from observation environments, instrument running situations, human factors and other aspects. According to the data of contrast test and instrument calibration, we found that this anomaly was caused by the fault of power stabilizer supplying power for gas-mercury instrument, not by tectonic movements. The work provides the basis for judgment and identification of anomaly in the future.