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国家地震局1983年对以下几种地应力测量新仪器通过了鉴定。(1)由河南省地震局研制的ZX—29型弦频式钻孔应变仪,仪器位移灵敏度10000—15000ns/μm,应变灵敏度为3.8×10~(-9),首次在传感器内设计了油面浮动自动调压系统并采用了全金属焊接先进工艺,以消除气压、水压对探头的直接影响。整机按一定程序自动开启打印数据。该仪器在河南辉县、陕西乾陵、江苏徐州等台测到固体潮显示。(2)由地震地质大队研制的41101A自动记录压磁应力仪,量程50～999.9Ω,记录灵敏度0.1Ω/格(相当于电桥测量10μH),对每个电感元件每天可提供一千四百多个稳定的测值,抗干扰能力强,使用中曾记录到83年5月26日,
In 1983, the State Seismological Bureau passed the appraisal on the following new instruments for measuring the earth stress. (1) The ZX-29 string frequency drilling strain gauge developed by Henan Seismological Bureau has displacement sensitivity of 10000-15000ns / μm and strain sensitivity of 3.8 × 10 -9. The oil was designed for the first time in the sensor Floating automatic pressure regulator system and the use of all-metal welding advanced technology to eliminate pressure, water pressure on the probe’s direct impact. Machine according to a certain procedure automatically open the print data. The instrument in Hui County, Henan Province, Shaanxi Qianling, Xuzhou, Jiangsu and other stations measured the tide showed solid. (2) The 41101A self-recordable piezomagnetic stress meter, developed by the Seismological and Geological Brigade, has a measuring range of 50 to 999.9Ω and a recording sensitivity of 0.1Ω / cell (equivalent to a bridge measurement of 10μH). Each inductive element can provide one thousand four hundred A number of stable measurements, anti-interference ability, the use has been recorded to May 26, 1983,