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IEVref:113-01-42ID:
Language:enStatus: Standard
Term: rotational frequency
Synonym1: speed of rotation
[Preferred]
Synonym2:
Synonym3:
Symbol: n
Definition: magnitude of the angular velocity ω divided by the angle 2π, thus n = |ω|/2π

NOTE 1 The rotational frequency is also the derivative of the absolute value of angle of rotation φ with respect to time t, divided by 2π, thus n= 1 2π d|φ| dt MathType@MTEF@5@5@+= feaagKart1ev2aqatCvAUfeBSjuyZL2yd9gzLbvyNv2CaerbbjxAHX garuavP1wzZbItLDhis9wBH5garmWu51MyVXgarqqtubsr4rNCHbGe aGqk0di9Wr=fpeei0di9v8qiW7rqqrVepeea0xe9LqFf0xc9q8qqaq Fn0lXdHiVcFbIOFHK8Feea0dXdar=Jb9hs0dXdHuk9fr=xfr=xfrpe WZqaaeaaciWacmGadaGadeaabaGaaqaaaOqaaKqzGeGaamOBaiabg2 da9OWaaSaaaKqzGeqaaKqzaeGaaGymaaqcLbsabaqcLbqacaaIYaac daqcLbsacqWFapaCaaGcdaWcaaqcLbsabaqcLbqacaqGKbWcdaabda qcLbqabaqcLbsacqaHvpGzaOGaay5bSlaawIa7aaqcLbsabaqcLbqa caGGKbqcLbsacaWG0baaaaaa@4C9E@ .

NOTE 2 The coherent SI unit of rotational frequency is second to the power minus one, s–1. The units revolution per second, symbol r/s, and revolution per minute, symbol r/min, are widely used in specifications for rotating machines.


Publication date:2011-04
Source:
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Internal notes:2017-06-02: Cleanup - Remove Attached Image 113-01-42en.gif

2017-06-02: Cleanup - Remove Attached Image 113-01-421en.gif

2017-06-02: Cleanup - Remove Attached Image 113-01-422en.gif
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