Method for detecting a torque applied to a shaft
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United States of America Patent
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Feb 20, 2018
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Dec 17, 2015
app pub date -
Dec 13, 2013
filing date -
Dec 21, 2012
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Abstract
A method for detecting a phase angle difference between a first periodic measurement signal and a second periodic measurement signal, wherein, for the purpose of determining a torque applied to a shaft, the two periodic measurement signals describe a rotation of the shaft at an axial distance from one another including superimposing a periodic auxiliary signal which simulates a previously known rotational speed for the shaft on the first periodic measurement signal in order to form a superimposition signal, and determining the phase angle difference on the basis of the superimposition signal and the second measurement signal.
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