SM-30磁化率仪的实用性研究

摘要

SM⁃30磁化率仪可用于野外岩矿石磁化率快速分析，受到越来越多从业人员的青睐。文章总结了该仪器具有的轻便、灵敏的特点以及其存在测定精度不高的问题，并使用英国产 Minisep、MS2磁化率仪与 SM⁃30磁化率仪对279个钻孔岩矿石样品进行了测定对比试验，发现三种仪器的磁化率测定结果尽管有较强的相关性，但 SM⁃30磁化率仪的测定精度偏低，值得从业人员重视。%SM⁃30 magnetic susceptibility instrument is favored by more and more geophysical workers because of its lightweight porta⁃bility and the fact that it can be used in the field rock and ore magnetic susceptibility rapid analysis. The author summarized its advanta⁃ges such as lightweight and sensitivity and its disadvantage of relatively low measuring accuracy. British Minisep and MS2 magnetic sus⁃ceptibility instrument as well as SM⁃30 magnetic susceptibility instrument were used to make a comparative test for 279 drilling rock ore samples. Although the magnetic susceptibility determination results by the three kinds of instruments show strong correlation, the SM⁃30 magnetic susceptibility instrument has the shortcoming of low measurement precision, which deserves due attention.