Re: [問題] 請問rpm與g之換算
※ 引述《aggaci.bbs@ptt.cc (挖拍狼歐！！)》之銘言：
> ※ 引述《FoxLes (呼嚕呼嚕哈嘿)》之銘言：
> : 已爬過文
> : 有類似標題 但似乎沒有解答?
> : 請各位幫幫忙了 多謝
> 現在的年輕人連估購都不會用！真糟糕！
> http://www.msu.edu/~venkata1/gforce.htm
嗯... 其實也許他只是不知該用哪些詞來找到所需要的東西
放上換算公式
轉自 http://www.piercenet.com/files/TR0040dh4-Centrifuge-speed.pdf
Certain procedures necessitate precise centrifugation conditions, which must be
specified in terms of relative centrifugal force (RCF) expressed in units of
gravity (times gravity or x g). Many microcentrifuges only have settings for
speed (revolutions per minute, RPM), not relative centrifugal force.
Consequently, a formula for conversion is required to ensure that the
appropriate setting is used in an experiment. The relationship between RPM
and RCF is as follows:
g = (1.118 * 10^-5) * R * S^2
Where g is the relative centrifugal force, R is the radius of the rotor in
centimeters, and S is the speed of the centrifuge in revolutions per minute.
Values of RCF in units of times gravity (x g) for common microcentrifuge rotor
radii appear in the following conversion table. As an example, centrifugation
of a sample at 5,000 RPM in a microcentrifuge that has a rotor with a radius of
7 cm will deliver a centrifugal force of 1,957 x g.
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