거짓말 탐지기 실험
Gelsonlab HSTM-065 교육 과학 완구 거짓말 탐지기 실험
거짓말 탐지기 실험 makes use of the characteristics of human lying, such as pulse acceleration, blood pressure rise, subcutaneous sweat gland secretion increase, which leads to skin sweating. Through the skin resistance on the finger to detect the change of contact point, through the oscillation comparison circuit to realize, understand the characteristics of human lying and the application of electronic circuit.