Singing greeting card beeper as a finger pulse sensor.
We constructed a robust and low-priced finger pulse sensor from a singing greeting card beeper. The beeper outputs the plethysmographic signal, which is indistinguishable from that of commercial grade sensors. The sensor can be used in school for a number of experiments in human cardiovascular physiology.
Belusic
Gregor
G
Department of Biology, University of Ljubljana, Slovenia. gregor.belusic@bf.uni-lj.si
Zupancic
Gregor
G
D002320:Cardiovascular Physiological Phenomena; D005385:Fingers / Q000098:blood supply*; D006339:Heart Rate / Q000502:physiology; D006801:Humans; D010827:Physiology / Q000193:education*; D010991:Plethysmography / Q000295:instrumentation*; D011674:Pulse / Q000295:instrumentation*; D017524:Slovenia