Patent ID: 7291856
Filing Date: 2007-11-06
Classification: G01N

Abstract:
1. A sensor for measuring at least one selected component in a composition, comprising: at least one light source operable to generate light having a desired wavelength range; a controller operable to modulate the at least one light source without mechanically modulating the at least one light source; a detector operable to receive and measure light that emerges from the composition; an optical head comprising first optics operable to direct the light from the at least one light source to the composition and second optics operable to direct the light that emerges from the composition to the detector, wherein the first and second optics comprise first and second mirrors, respectively, and wherein the light from the at least one light source is transmitted through an optical fiber to the optical head; and a signal analyzer operable to analyze measurements of the light that emerges from the composition and to correct for bend loss in the optical fiber.