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前言大连台于1981年7月开始使用 CJ_6型磁力仪80033~#仪。每周二、五 D 管和 H Ⅰ号管测 D、H,每月月中、月末用 H Ⅱ号管(备用管)测 H。除1982年1月末因 D 符锁紧销疲劳断裂影响二次 D 测量外,数据齐全,仪器工作正常。D 测量每次二组,始末标志读数差一般在0.2’以内,每次读二个标志取平均值。读数差大即重测,保证了数据可靠。H 测量每次四组,一次测量均方差一般小于0.7~γ。仪器底座用漆片固定在1~#墩上,并保持与在北京定常数时的位置。还固定了标志和 H 零位的读数
Preface Dalian station in July 1981 began using CJ_6-type magnetometer 80033 ~ # instrument. Every Tuesday, Friday D and H I pipe D, H, monthly month, the end of the month with H No. H tube (spare pipe) measured H. In addition to the end of January 1982 due to D-lock pin fatigue fracture secondary D measurements, the data is complete, the instrument is working properly. D measurement of each two groups, the beginning and ending signs of reading difference is generally within 0.2 ’, each time reading two signs averaged. Large difference between the readings that retest to ensure that the data is reliable. H measured each four groups, a measurement of mean square error is generally less than 0.7 ~ γ. Instrument base with a fixed piece of paint in the pier 1 ~ #, and to maintain and in Beijing when the constant position. Also fixed mark and H zero readings