Patent ID: 9739706
Date: 2017-08-22
CPC Classifications: G01N

Claim:
1. A system, comprising: a chamber having a fluid including a liquid and a component in the fluid; a modulated light source for emitting an amplitude modulated light beam; a first beam wavelength and a second beam wavelength selected from the amplitude modulated light beam wherein the first beam wavelength and the second beam wavelength are generated alternatively; the component absorbs a first amount of light energy when the first beam wavelength is transmitted to the fluid and a second amount of light energy different from the first amount of energy when the second beam wavelength is transmitted to the fluid, and producing acoustic signals from the component; a pressure sensor disposed proximate the chamber, for detecting the acoustic signals; and a processor based module communicatively coupled to the pressure sensor and configured to receive the acoustic signals from the pressure sensor and determine at least one of the component and a concentration of the component in the fluid based on a difference in the acoustic signals.