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本文介绍寻找地下水的便携式KCF型γ微伦计。它采用CMOS计数器作整形器,通过改变分频系数来变换量程,仪器的灵敏阈不劣于1μR/h,各量程的非线性误差不大于5％。
This article describes a portable KCF-type γ-micrometre that looks for groundwater. It uses the CMOS counter as a shaper, and changes the range by changing the frequency dividing coefficient. The sensitivity threshold of the instrument is not inferior to 1μR / h, and the non-linear error of each range is not more than 5%.