静乐井SWY-Ⅱ和LN-3A水位仪的对比分析

Contrast analysis on the SWY-Ⅱ and the LN-3A instruments at the Jingle well

对静乐井SWY-Ⅱ水位仪和LN-3A水位仪从稳定性、数据一致性、内在质量、系统漂移、水震波、气压效应、自然环境干扰7方面进行了对比分析,结果显示:①SWY-Ⅱ水位仪和LN-3A水位仪运行稳定;②两套仪器观测数据一致性较好;③两套仪器测量精度均优于0.001m,平均值一致性较好。④通过计算分钟值数据,两套仪器M2波潮汐因子及其观测精度较为接近;⑤通过与SW40-1水位仪进行对比,两套仪器均存在不同程度系统漂移;⑥两套仪器分钟值数据记录水震波时间及振幅差异明显;⑦两套仪器的气压效应、受自然环境干扰影响较为一致。

In the paper,the SWY-Ⅱ and the LN-3A instruments are contrasted from the seven aspects of stability,data consistency,internal quality,systematic drift,water-seismic waves,barometric effect and natural environment interference at the Jingle well. The main conclusions are as follows： ① The two digital instruments are stable. ② The observation data of the SWY-II instrument coincided with the LN-3A instrument. ③The measurement accuracy of two instruments is basically the same. There is a good identity in the mean consistency of the two instruments.④There is little difference in the tidal factor of M2 wave and the observation precision between the two instruments. ⑤The two instruments have systematic drift in varying degrees. ⑥There is a big difference in the vibration time and the ranges of the water-seismic waves between the two instruments.⑦ There is little difference in the barometric effect and the natural environment interference between the two instruments.