Checking apparatus heartbeat

摘要

Checking apparatus heart rate, comprising a transducer infrared converting pulsation of the heart electric pulse is completed and shaped to drive a microprocessor circuit with memory and peripheral circuits, which excited the microprocessor indicating the frequency pulsation and the start of the same in number, light and audible signals, initiating the operation of the apparatus by closing a microswitch directly or indirectly manually operated by another mechanical element, all elements are supplied from a power supply from the mains voltage.