Method and apparatus for measuring power output and for measuring tension and vibrational frequency of a elongate flexible member
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United States of America Patent
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Mar 12, 2002
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N/A
app pub date -
Oct 14, 1998
filing date -
Oct 15, 1997
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Abstract
The invention broadly provides a method and apparatus for measuring the power output of one powering a vehicle or other system driven by the elongate flexible member such as chain. In a preferred embodiment described, the vehicle is a bicycle. The method of the invention comprises measuring the speed and tension of the drive chain and calculating the power output therefrom. The apparatus of the invention includes a chain speed sensor, a chain tension sensor, and electronic processing apparatus to calculate and display the power output based upon the chain measurements.
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