초록 ▼

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

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.

대표청구항 ▼

An exercising measuring instrument, comprising: acceleration sensor means to be worn on a body of an exerciser, for outputting a waveform signal representative of acceleration which is received by said acceleration sensor means in response to movements of said exerciser; amplifying means coupled to

An exercising measuring instrument, comprising: acceleration sensor means to be worn on a body of an exerciser, for outputting a waveform signal representative of acceleration which is received by said acceleration sensor means in response to movements of said exerciser; amplifying means coupled to said acceleration sensor means, for amplifying said waveform signal outputted from said acceleration sensor means; manually operable switching means for selecting one exercise mode out of a plurality of exercise modes, each exercising mode representing a form of an exercise performed by said exerciser; amplifier-gain control means coupled to said manually operable switching means, for varying the amplifier-gain of said amplifying means in accordance with the exercise mode selected by said manually operable switching means; exercise-measuring means for measuring exercise data in said selected exercise mode on the basis of said waveform signal amplified by said amplifying means; and announcing means for announcing the exercise data measured by said exercise-measuring means.