Exercise measuring instrument
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United States of America Patent
Stats
-
Oct 9, 1990
Grant Date -
N/A
app pub date -
Apr 14, 1989
filing date -
Apr 18, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An exercise measuring instrument according to the present invention employs an acceleration sensor which comprises a piezoelectric piece having a pair of piezoelectric elements stuck to each other. An output waveform of the acceleration sensor is supplied to an amplifier, gain of which is changed in accordance with an exercise mode selected out of a walking mode, an exercise-walking mode and a jogging mode, and thereby an output level of the amplifier is kept at somewhat an equal voltage level, although the voltage level of the output waveform of the acceleration sensor is different between the exercise modes. This improvement allows an accurate measurement of exercise.
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Family
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