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在地质工作中,含磁性的铁、铜矿床的勘探工作量所占比例较大,普查钻也不少,常有不同程度的钻孔弯曲,因而测斜工作比较多.测量磁性矿区钻孔的方位角,以陀螺测斜仪(简称陀螺仪)为最好,测量精度高,操作简便.但在多山或高山地区,陀螺仪运输不便,而且常在终孔时测量,难以及时了解钻孔方位角的变化情况.磁针测斜仪(简称磁针仪),结构简单,运输、使用方便,实践表明,如条件符合,也可应用.在磁性矿区钻孔的无磁性或弱磁性孔
In geological work, magnetic iron and copper deposits occupy a large proportion of the exploration workload, census drill a lot, often varying degrees of drilling bending, and therefore work more oblique survey.Magnetic borehole measurement Of the azimuth to gyro inclinometer (referred to as the gyro) is the best, high precision, easy to operate.But in mountainous or mountainous regions, the gyroscope transport inconvenience, and often measured in the final hole, it is difficult to understand the drill Magnetic needle inclinometer (referred to as the magnetic needle device), simple structure, transportation, easy to use, practice shows that, if the conditions are met, can also be applied in the magnetic mining area of non-magnetic or weak magnetic hole