| 摘要 |
PURPOSE: An apparatus for measuring body fat is provided to measure the body fat of a human body by using a bioelectrical impedance analysis method. CONSTITUTION: An apparatus for measuring body fat includes a current supply circuit, a voltage measurement circuit(106), a conductive electrode plate, an A/D conversion circuit, a microprocessor, a screen display device, and an input portion. The current supply circuit includes a constant current generation circuit(102), an AC generation circuit(103), and a signal mixing circuit(101). The constant current generation circuit(102) is used for supplying the constant current. The AC generation circuit(103) is used for generating AC signals of sine waves. The signal mixing circuit(101) is used for converting the constant current in order to measure an internal resistance of a human body. The voltage measurement circuit(106) includes a voltage follower circuit.
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