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Hz/Nm is the correct unit for Slope parameter - not Nm/Hz

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Joined 2013-02-01

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Hello

May I draw your attention to what I firmly believe is a mistake in the latest (and previous) version of document "D00001086_-_ANT+_Device_Profile_-BicyclePower-Rev4.0.pdf".

On page 41 is the equation 15: Torque=[TorqueFrequency / (Slope/10)] [Nm].

The unit for TorqueFrequency is Hz, as also noted explicitly in equation 13 on the same page 41. So in order to obtain a unit of Nm of the Torque, variable Slope must have a unit of Hz/Nm and not Nm/Hz as written several places throughout the document. For instance on pages 39, 40, 56, 60.

Hz/Nm does in fact coerce well with the usual way of defining transducer transfer function gain: Output/Input = Hz/Nm.

Do you agree?

br/mvh      
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Total Posts: 235

Joined 2012-08-31

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Hi Larsen,

Yes, this is an error. Apologies, I thought I had caught that one before. I'll update it in the next rev.

Tak for hjælpen,

Kat