通过对粒子计数器测试原理和误差的分析，指出了粒子计数器使用中应注意的一些问题。

In this paper, some questions which must be considered in using particle counter by the way of analysing the particle counters testing principle and errors are pointed out.

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该方法以计数器法测取脉冲的主体宽度，用时间-电压转换法测取脉冲的零头时间，并以此作为量化误差的校正值。

In this method the main part of the pulse width is measured by counter, and the odd of the pulse width is measured by time-voltage conversion method.

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利用气垫导轨及电脑通用计数器测定匀加速直线运动的加速度．测定误差为-0.67%。

Using air cushion slide-way and general computer counter to measure the acceleration in uniform linear motion, the error of this experiment is -0.67 percent.

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