Method for Detecting Turbidity Using Coherent Light
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United States of America Patent
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Mar 2, 2017
app pub date -
Aug 24, 2016
filing date -
Aug 24, 2015
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Abstract
A method for detecting turbidity using coherent light uses a coherent light emitter such as a laser calibrated to emit a specific wavelength. A light sensor adjacent to the coherent light emitter monitors incoming light to detect the specific wavelength. The coherent light beam will not contact the light sensor unless reflected back to the light sensor, thus detecting the specific wavelength indicates turbidity caused by the presence of smoke, which reflects the coherent light beam back to the sensor. The magnitude of the specific frequency that is detected indicates the amount of smoke detected.
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