在批林批孔运动的推动下,我院物探系仪器组的同志,遵照伟大领袖毛主席关于“中国人民有志气,有能力,一定要在不远的将来,赶上和超过世界先进水平”的教导,在院党委和系总支的直接领导下,院内外兄弟单位的大力支援下,试制成了轻便饱和磁力仪。饱和磁力仪是利用高导磁率磁性材料制成铁芯,通过交变电流进行调制,借以测定磁场的一种仪器。它实质上是一种磁放大器。这种仪器具有结构简单、成本低、操作方便、结果可靠、灵敏度高等特点,加之使用时不必调平,也无需定向,只要一次读数即可,因而大大提高了野外磁测工作的效率。其原理如图1所示(?) With the motivation of the Pok Pik Kong Campaign, comrades of the Geophysical Prospecting Instrument Group of our hospital follow the example of Chairman Mao, the great leader, on “the Chinese people are ambitious and able to catch up with and surpass the advanced world level in the near future” Under the direct leadership of the party committee and the department general branch of the hospital, with the strong support of brothers and colleagues both inside and outside the hospital, the trial made a light-weight saturation magnetometer. Saturation magnetometer is the use of high permeability magnetic material made of iron core, through the exchange of current modulation, in order to measure the magnetic field of an instrument. It is essentially a magnetic amplifier. The instrument has the advantages of simple structure, low cost, convenient operation, reliable result and high sensitivity, and the utility model has the advantages of simple structure, low cost, high sensitivity, no leveling and no need of orientation, and greatly improves the efficiency of field magnetic surveying. The principle shown in Figure 1 (?)