JPS645530A - Skin potential measuring apparatus - Google Patents

Abstract

PURPOSE:To make the variation in a skin potential level due to body motion fine and to reduce the feeling of physical disorder given to a user, by mounting a mount member to a finger so that the first electrode is brought into contact with the bulb of the finger and the second electrode is brought into contact with the back thereof and detecting the skin potential level between both electrodes. CONSTITUTION:The first electrode 5 closely brought into contact with the bulb 20 of a finger and the second electrode 6 closely brought into contact with the back 21 of the finger receive the powers of a living body respectively appearing in the bulb 20 and back 21 of the finger and said powers are applied to the detection circuit 12 in a housing 11 through compression coil springs 7, 8 and lead wires 9, 10. The detection circuit 12 outputs the potential difference between both electrodes to the transmitting part in the housing 11 as a skin potential level and said potential difference is received by a receiving part 14 to be outputted to the reversal input terminal of a comparing circuit 16. The comparing circuit 16 compares reference voltage with the skin potential level and, at the time of skin potential level > reference voltage, an Hi-signal is outputted to a timer circuit 18. When the Hi-signal is continuously generated for 1min or more, the timer circuit 18 outputs the Hi-signal to a cooler control circuit 19, and the blower of an air condition and the cooling medium compressor of a freezing cycle are operated to cool a compartment.