Tag: as photoplethysmograph

Abstract Throughout this paper, we emphasize design; photoplethysmograph hardware design. We propose to buildand test a photoplethysmograph. This device will be used to determine heart rate using a volumemeasurement. This is done by using low levels of infrared sensors to detect small changes in blood contentin the micro-circulation of the skin that occur with each heart beat . An LED is used to transmit light intothe skin. The infrared is reflected by the iron content of the blood in the skin and tissues. The transmittedlight through the blood and tissue is detected by a receiver. This information is processed and amplified toprovide blood flow data. The photoplethysmograph gives a good technique to the physician to get thesuitable diagnosis to his patient according to the output data that he gets from this device. [avf_view name="Article Addons" view-id="66d98451c48e3"]