Фотоплетизмограф

Abstract

Photoplethysmograph contains the probe comprising the source of the light and two photodetectors mounted on the same base. In addition, the device contains the third photodetector, three amplifiers, and the computation unit comprising the microcontroller, the unit of the galvanic separation, the sequential interface, and the personal computer. The outputs of the first, second, and third photodetectors are connected with the first input of the first, second, and third amplifiers respectively. The second inputs of the amplifiers are connected with the first output of the microcontroller in the computation unit.