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连环测斜方法（以下简称环测法）是用于磁性矿区测量钻孔方位角和顶角的一种方法，目前国内许多单位仍在应用。这种测斜方法由于采用了逐点推算、连环测量和公式计算的间接办法，因而存在着效率低、操作程序麻烦和误差较大等缺点。但是近年来，无论是仪器和测斜方法都有了改进，已设计和生产了可以连续测量的JXC-1型和JXK-2型测斜仪，还研究了显影测斜方法。前二种仪器可以连续测量，提高效率，减少误差。后一种方法，则可避免用定盘测斜仪的玛瑙轴承或顶尖损坏，或顶卡时间失灵而导致测量数据的过失误差和返工，并提高了测斜精度。
The method of tangent inclinations (hereinafter referred to as ring method) is a method for measuring the azimuth and the apex angle of a borehole in a magnetic mining area. At present, many units in China are still in use. This method of inclinations has some shortcomings such as low efficiency, troublesome operating procedures and large errors due to the indirect method of point-by-point calculation, link measurement and formula calculation. However, in recent years both JXC-1 and JXK-2 inclinometers have been designed and manufactured for both the instrumentation and the inclinometer methods. The developing inclinometer method has also been studied. The first two kinds of instruments can be continuous measurement, improve efficiency and reduce errors. The latter method avoids errors or rework of measurement data caused by on-board inclinometer agate bearing or top damage or top card failure, and improves the accuracy of measurement.