看板Biology
标 题Re: [问题] 请问rpm与g之换算
发信站KKCITY (Sat Sep 16 22:29:51 2006)
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※ 引述《[email protected] (挖拍狼欧！！)》之铭言：
> ※ 引述《FoxLes (呼噜呼噜哈嘿)》之铭言：
> : 已爬过文
> : 有类似标题 但似乎没有解答?
> : 请各位帮帮忙了 多谢
> 现在的年轻人连估购都不会用！真糟糕！
> http://www.msu.edu/~venkata1/gforce.htm
嗯... 其实也许他只是不知该用哪些词来找到所需要的东西
放上换算公式
转自
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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1F：推 huangsw:很抱歉 我也是看这个PDF 外加OPD课本 61.59.218.254 09/20 22:39
2F：推 huangsw:所以我说1.118 59.104.83.218 09/22 00:23