[quote=“OreoCookie”]
This is what happens in strain gauge-based power meters: from the strain you deduce a force (which also requires a temperature-dependent calibration curve), and when you multiply the velocity (deduced from the cadence, which needs to be measured as well) you get your power reading.
Also, many of the speed sensors do not include temperature compensation (although I heard that Elite’s sensor does). [/quote]
Cadence measurement can’t be used as such for velocity source. There might be user controllable gear ratios between.
Velocity has to measured with fixed ratio to force measurement.
Speed sensors as such don’t need temperature compensation, but force measurement sensors usually do need.