help please - Optical Heart rate monitor circuit

Thread Starter

atopet

Joined Oct 10, 2012
1
Please I need help in getting the schematic of an Optical Heart rate monitor circuit, I'm not good in circuit design
 

wmodavis

Joined Oct 23, 2010
739
You might look into "
Plethysmography


A plethysmograph is an instrument for determining and registering variations in the size of an organ or limb. The diagnosis of vascular disease is done with several types of plethysmograph, each with advantages.
An infrared sensor is placed on the skin of the limb, which detects skin color changes that occur with each heartbeat
 
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