用观测地壳中应力的变化来探寻地震前兆异常已得到国内外地震科学工作者的重视,目前国内主要进行的是电感法地应力相对测量,RYC2—70压磁应力仪就是专为这种测量研制的一种自动记录仪器。从1971年开始该仪器已进行了八年多的观测试验,现就观测试验情况介绍如下。 To observe the changes of stress in the earth’s crust to explore the earthquake precursory anomalies have been the attention of earthquake scientists at home and abroad, the current main domestic is the relative measurement of earth stress inductive method, RYC2-70 compressive stress meter is designed for this measurement development An automatic recording instrument. Since 1971, the instrument has undergone more than eight years of observation and testing. The observations and observations are as follows.