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1985年5月7—8日云南省地震局在昆明召开了GD-80型高频地动仪鉴定会。云南省地震局副局长闵子群同志出席了会议并讲了话。参加会议的有来自北京国家地震局分析预报中心和地球物理所的代表,还有易门铜矿和昆明300号信箱的代表,以及云南省地震局等各方面代表22人。这是一套对高频振动有很高响应灵敏度轻便型仪器,功耗很小,但可响应到100赫以上的地面高频振动,其速度灵敏度可高达10~5秒。我国已有的一套极微震仪JW-1型是在1981年
May 1985 Sept. 8-8 Seismological Bureau of Yunnan Province held a GD-80 High Frequency Seismograph Identification Conference in Kunming. Minzimun, deputy director of Yunnan Seismological Bureau, attended the meeting and made a speech. The meeting was attended by representatives from the Beijing Center for Earthquake Analysis and Forecasting Center of the State Seismological Bureau and representatives of the Yemen Copper Mine and Mail Box No. 300 in Kunming, as well as from the Earthquake Administration of Yunnan Province and other representatives of 22 people. This is a portable device that has a high sensitivity to high frequency vibrations. It consumes very little power but responds to ground dither vibrations up to 100 Hz with a speed sensitivity of up to 10 to 5 seconds. Our country already had a set of extremely microseism JW-1 type was in 1981