G - Physics – 01 – K
Patent
G - Physics
01
K
G01K 5/50 (2006.01) G01D 5/26 (2006.01) G01K 5/52 (2006.01) G01K 11/12 (2006.01) G01M 11/02 (2006.01) G01N 21/47 (2006.01) G01N 21/49 (2006.01)
Patent
CA 2273585
A sensor for detecting changes in a variety of conditions is provided, including temperature, chemical conditions including pH and ion levels, biological antigens, radiation levels, electrical field and pressure applied to the sensor. The sensor body is formed from a material which incorporates an evenly dispersed matrix of light- scattering elements. A light source emits light into the body to form an effective optical cavity in which the light is scattered by the matrix. One or more receivers detects the intensity of scattered or integrated light inside and/or outside of the optical cavity. The matrix and/or the sensor body are composed of materials which reduce or increase the density of light-scattering elements, depending on the conditions applied to the matrix. An increase in the density of the light-scattering elements results in a corresponding increase in the integrated intensity of light received by the receiver, when the receiver is positioned within the optical cavity. At a more distant location, the integrated light intensity at the receiver decreases as the density of scattering elements increases. A processing unit translates the intensity level received by the receiver, into a measure of intensity of the condition detected by the sensor.
Canpolar East Inc.
Mcfadden Fincham
LandOfFree
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