Heart Beat Sensor


Heart beat is sensed by using a high intensity type LED and LDR. The finger is placed between the LED and LDR. As Sensor a photo diode or a photo transistor can be used. The skin may be illuminated with visible (red) using transmitted or reflected light for detection. The very small changes in reflectivity or in transmittance caused by the varying blood content of human tissue are almost invisible... Read Compelte post

Posted by abbas1707 on Wed Mar 05 2008, 02:49 am

Downloads

Comments

Eugenearilk
Fri Jun 14 2024, 03:16 pm
Bennygal
Fri Jun 14 2024, 11:56 am
PeterHow
Thu Jun 13 2024, 06:00 pm
Desmondhet
Thu Jun 13 2024, 03:10 pm
Bernardhex
Thu Jun 13 2024, 02:23 pm
Jasonsnice
Thu Jun 13 2024, 02:08 pm
EdgareitWrido
Wed Jun 12 2024, 09:04 pm
ktaleteelq
Wed Jun 12 2024, 04:29 pm