["진공 泵的抽气量计算",,"선생님들 안녕하세요,，我在找真空泵抽气速率公式时发现有个公式 1、S=1.303V/tLog(P1/P

2019-10-29View Original

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各位老师你们好，我在找真空泵抽气速率公式时发现有个公式，1、S=2.303V/tLog(P1/P2) 2、S=(V/T)*(P1/P2) 问题1：哪个正确问题2：如果1正确，式中2.303其表示意义是什么（查资料时都没有说明这个数值）问题3：利用其中公式算出的结果，能否导出抽起量？

Reply #22019-10-30

2.303是以10为指数的自然对数的约值,即: ln10≈2.303

Reply #32020-04-28

https://bbs.hcbbs.com/thread-1887776-1-1.html 可试用下我编制的计算表

Reply #42020-05-06

我们一般根据实验来算具体的抽速，用质量流量计，然后测真空度，随着质量流量的增大，最后会得到一条趋于平缓的线

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["진공 泵 的 抽气 量 计算",,"선생님들 안녕하세요,，我在 找 真空 泵 抽气 速率 公式 时 发现 有个 公式 1、S=1.303V/tLog(P1/P

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["진공 泵的抽气量计算",,"선생님들 안녕하세요,，我在找真空泵抽气速率公式时发现有个公式 1、S=1.303V/tLog(P1/P