FIELD: medicine.
SUBSTANCE: device for measuring electric parameters of an individual's body area (3) comprises two conducting electrodes (5, 6) placed on the individual's body, an operating amplifier (2) and a microcontroller (1). The microcontroller (1) is configured to operate in the mode of the individual's body area impedance measurement, in the mode of the individual's skin resistance measurement and in the mode of the individual's body area potential measurement. The electrodes (5, 6) are connected to a negative feedback circuit of the operating amplifier (2), a non-inverting terminal of which is connected to the zero potential, and an output is connected to an input of an analogue-to-digital converter of the microcontroller (1), while an inverting terminal is connected through a resistor (4) to an in/out port (L) of the microcontroller (1). In the mode of the individual's body area impedance measurement, the microcontroller (1) provides forming a signal of a pre-set frequency whereat the impedance is measured, on the output of the in/out port (L). In the mode of the individual's skin resistance measurement, the microcontroller (1) provides forming a DC voltage signal on the output of the in/out port (L). In the mode of the individual's body area potential measurement, the microcontroller (1) provides switching off the in/out port (L).
EFFECT: more accurate measurement of the electric parameters of the individual's body areas by switching the microcontroller modes without change of the electrodes and their body position.
9 cl, 12 dwg
