A variable-threshold,variable-gain,infrared photoplethysmograph |
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| Authors: | David W Harrison Walter Isaac |
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| Institution: | (1) Department of Psychology, University of Georgia, 30602 Athens, Georgia |
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| Abstract: | The design of a versatile, low-cost, hermetically sealed, infrared photoplethysmograph is described. The device can be used for optical readings of changes in blood volume which occur with cardiovascular events. Advantages of the device are discussed. |
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| Keywords: | photoplethysmography photometrics vascular activity |
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