大气采样体积的修正

Volume correction of atmosphere sampling

根据转子流量计的工作原理，推导了大气采样体积的修正公式，固实际采样时的使用状态不同于仪器的校正状态，所以直接读流量计会带来体积误差，须采用本公式修正。经计算证明：采样体积修正是必要的。

Based on the operation principle of the rotary flowmeter,a volume correcting equation of atmosphere sampling has developed. The practically operating conditions are different from the calibrating condition of instrument,so there are some volume errors in reading direct from flowmeter and must be corrected.Calculating re-suIts show that it is necessary to correct the sampling volume.