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Bioelectrical impedance measuring device and body composition measuring apparatus
Bioelectrical impedance measuring device and body composition measuring apparatus
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机译:生物电阻抗测定装置及身体成分测定装置
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摘要
There are provided a bioelectrical impedance measuring device which calculates bioelectrical impedance parameter values by use of an AD converter incorporated in a low-cost general-purpose microcontroller and a body composition measuring apparatus using the device. The bioelectrical impedance measuring device measures voltages generated in a living body according to alternating currents of predetermined frequencies applied to the living body and comprises digital data acquiring means for acquiring digital data by sampling the measurement signals of the voltages by sampling frequencies which are not higher than the Nyquist frequencies and calculation means for calculating bioelectrical impedance parameter values based on the digital data. Thus, since high-speed processing is not needed at the time of conversion to the digital data, sampling can be processed by the AD converter in the low-cost general-purpose microcontroller, thereby making cost reduction possible.
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