Re: [問題] 請問rpm與g之換算
※ 引述《iawd@kkcity.com.tw ( )》之銘言：
> ※ 引述《aggaci.bbs@ptt.cc (挖拍狼歐！！)》之銘言：
> > 現在的年輕人連估購都不會用！真糟糕！
> > http://www.msu.edu/~venkata1/gforce.htm
請問...能用物理離心力公式推導出此方程是嗎？
我用 F＝V^2/R (V＝2ΠR/T)去推算
不論怎麼單位換算 就是算不出下面公式 XD
請大大幫幫忙^^
> 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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Ξ Origin: 中興大學天樞資訊網 <bbs.nchu.edu.tw>
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