Circuit uses only single operational amplifier and few passive components to remove background noise from miniature "wristwatch" pulse detector. It can be applied to other systems where background noise is slowly varying, such as ultrasonics, strain-gage sensors, and accelerometers.
Low-frequency attenuator circuit
NASA Tech Briefs ; 4 , 1
01.08.1979
Sonstige
Keine Angabe
Englisch