Optics: measuring and testing – Refraction testing
Patent
1993-09-29
1995-09-19
Evans, F. L.
Optics: measuring and testing
Refraction testing
356133, G01N 2141
Patent
active
054520762
ABSTRACT:
The present invention relates to a fluid detection system which can be adapted for use in applications including liquid-level detection, pipeflow monitoring, and interstitial leakage in double-walled containers. The system operates on principles of optics and provides the capability of remotely differentiating between fluids having different refractive indices including liquids and vapors. The present detector uses a unique light pulsation technique which increases permissible operating ranges over existing optical detection systems.
REFERENCES:
patent: 4907878 (1990-03-01), Arditty et al.
Bennett, Jr. Paul R.
Schopper Milton D.
Taylor, III James L.
Evans F. L.
Graham Robert L.
Optiguard, Inc.
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