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磁法的室内计算是一项繁重的工作,因而如何提高室内工作的效率是一个值得注意和研究的问题。我们根据实际工作的体会,结合了五用计算尺的基本原理(1959年地球物理勘探第1期)改进了磁法室内计算方法,采用了万能计算图。利用此图进行室内计算可以省掉Δ、Δ×ε、日变改正、另点改正的计算过程。如不加其他改正一次即可从平均读数(用心算)计算到最后一项ΔZ。所花的时间,初用者可达
Magnetic calculation of indoor calculation is a heavy work, so how to improve the efficiency of indoor work is a problem worth noting and research. Based on the actual working experience, we combined the basic principle of the five-use slide rule (1959 Geophysical Prospectus No. 1) to improve the magnetic method of indoor calculation and adopted the universal calculation chart. The use of this figure for indoor calculation can save Δ, Δ × ε, diurnal correction, and the other point of correction of the calculation process. If without any other correction can be average readings (calculated intentions) to the last ΔZ. The time spent, the first user reachable