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从大量重力测量资料研究中,发现温度变化对重力测量精度的影响很大,尤其在面积较大的范围中进行重力测量,环境温度差异大,温度对重力仪的影响更为复杂。在目前高精度重力仪数量尚不能满足需要的情况下,提高石英弹簧重力仪的测量精度是十分必要的。为此,我们在1982年与有关厂家协作,制成了一台半导体制冷、制热重力仪温度测试装置,用以模拟野外工作环境温度变化。从1983年7月至1984年4月我们用该装置对列入国家地震局“清理攻关项目”的六台CG-2型,一台ZSM型和十六台Worden型石英弹簧重力仪进行了系统的温度测试。参加测试的仪器型号见下表
From a large number of gravimetric data studies, it is found that temperature changes have a great influence on the accuracy of gravimetric measurements. In particular, gravimetric measurements are carried out over a large area with large differences in ambient temperature and the influence of temperature on gravimeters is more complicated. At present, the number of high-precision gravimeter can not meet the needs of the circumstances, to improve the measurement accuracy of quartz spring gravimeter is very necessary. To this end, we worked with the manufacturers in 1982 to create a semiconductor cooling, heating gravimeter temperature test device to simulate the temperature changes in the field work environment. From July 1983 to April 1984, we used this device to conduct a systematic study on six CG-2 models, one ZSM model and sixteen Worden-type quartz spring gravometers included in the “Earthquake Research Project” of the State Seismological Bureau The temperature test. To participate in the test model of the instrument below table