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过去我们用刃口磁力仪测量岩石标本的余磁及感磁,今年改用地质部仪器厂1954年出的无定向磁力仪进行测量,在使用过程中作了一些改进,测量了数以千计的标本,取得了较好的效果。该仪器格值0.34伽玛/格左右,磁针仅长11毫米。因此,与其他磁力仪比起来,可以测量较弱的磁性,准确度高,数据整理可以简化。但按原设计要
In the past, we measured the residual magnetism and magnetic susceptibility of rock specimens by using the edge magnetometer. This year we switched to the non-directional magnetometer manufactured by the Geological Department Instrument Factory in 1954 and made some improvements in the course of using it. Thousands Of the specimens, and achieved good results. The instrument grid value of 0.34 gamma / grid, the needle is only 11 mm long. Therefore, compared with other magnetometers, weaker magnetism can be measured with high accuracy and data processing can be simplified. But according to the original design