地震水温观测仪器现场检测方法及其对观测数据连续性影响的实验
Experimental study on the field detection methods of seismic water temperature observation instrument and its influence on the continuity of observation data
明晓冉 1李文一 1王忠彪 1田兴宇 1朱传东 1唐荣1
作者信息
- 1. 中国地震局第一监测中心,天津 300180
- 折叠
摘要
地震水温观测仪器(简称测温仪)在地震短临预报中发挥了关键作用.但长期以来,其缺少具有量值溯源性的现场检测方法,即移动标校方法.提出了 2种测温仪移动标校方法,分别为原位比较法和恒温槽比较法,并通过现场实验初步验证了方法对观测数据连续性的影响.结果表明:在实验井孔条件下,移动标校前后被测仪器观测数据的标准差接近,最大差值为-0.0002℃;示值变化量差值的最大值为-0.0053℃;干扰度(ID)计算结果均＜50％.移动标校方法对仪器数据连续性的影响在可接受范围内.
Abstract
Seismic water temperature observation instruments(abbreviated as thermometer)plays a key role in short and imminent earthquake prediction.However,for a long time,there has been a lack of field detection method with quantitative traceability,which is,mobile calibration method.In this paper,two kinds of mobile calibration methods of thermometers,namely in situ comparison method and constant temperature chamber comparison method,are proposed,and the influence of these methods on the continuity of observation data is preliminarily verified by field experiments.The results show that under the conditions of the experimental well,the standard deviations of the observation data of the measured instrument before and after mobile calibration are close,with the maximum difference of-0.0002℃,the maximum difference of the variation amplitude of the indication value of-0.0053℃,and the calculated results of interference degree(ID)of all＜50％.The influence of mobile calibration method on instrument data continuity is in the acceptable range.Although the method has some limitations in the scope of application,it is still a potential scheme to realize the traceability of station operating thermometers.
关键词
地震水温观测仪器/现场检测/移动标校/数据连续性/量值溯源Key words
seismic water temperature observation instrument/field detection/mobile calibration/data continuity/traceability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据