Non-contact flood and moisture detector
First Claim
1. A non-contact flood and moisture detector for detecting water on a remote surface, comprising:
- a source of IR radiation directed towards the remote surface and emitting an IR radiation and projecting a field of illumination on the remote surface;
a receiver of IR radiation directed towards the remote surface, and collecting the IR radiation from a field of view of the remote surface;
a non-contact flood and moisture detector for detecting water on a remote surface, comprising;
a source;
wherein a second portion of the IR radiation emitted by the source is specularly reflected from the remote surface and received by the receiver;
wherein a first portion of the IR radiation emitted by the source is backscattered from the remote surface and received by the receiver;
wherein a second portion of the IR radiation emitted by the source is specularly reflected from the remote surface and is not received by the receiver;
An electronic circuit connected with the source and the receiver and adapted to compare the IR radiation received by the receiver by the receiver to a baseline dry condition level of the IR radiation;
wherein a decrease in the IR radiation received by the receiver indicates presence of water;
wherein the electronic circuit comprises an electronic logic circuit adapted to perform a self-test and a self-calibration and notify a user of contamination with dirt or grime;
with the electronic logic circuit further adapted to automatically setting the receiver gain independent of an emissivity of the remote surface and of a distance between the remote surface and the non-contact flood and moisture detector.
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Accused Products
Abstract
A non-contact flood and moisture detector for detecting water on remote surface includes a source of IR radiation directed towards the remote surface and projecting a field of illumination on the remote surface, and a receiver of IR radiation directed towards the remote surface, and collecting the IR radiation from a field of view on the remote surface, with the field of illumination and the field of view at least partially overlapping. A portion of the IR radiation is backscattered and received by the receiver and a portion of the IR radiation is specularly reflected and not received by the receiver. An electronic circuit synchronized with the source and the receiver compares the IR radiation measured by the receiver to a dry baseline condition level where a decrease in the backscattered IR radiation measured by the receiver indicates the presence of water.
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Citations
16 Claims
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1. A non-contact flood and moisture detector for detecting water on a remote surface, comprising:
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a source of IR radiation directed towards the remote surface and emitting an IR radiation and projecting a field of illumination on the remote surface; a receiver of IR radiation directed towards the remote surface, and collecting the IR radiation from a field of view of the remote surface; a non-contact flood and moisture detector for detecting water on a remote surface, comprising;
a source;wherein a second portion of the IR radiation emitted by the source is specularly reflected from the remote surface and received by the receiver; wherein a first portion of the IR radiation emitted by the source is backscattered from the remote surface and received by the receiver; wherein a second portion of the IR radiation emitted by the source is specularly reflected from the remote surface and is not received by the receiver; An electronic circuit connected with the source and the receiver and adapted to compare the IR radiation received by the receiver by the receiver to a baseline dry condition level of the IR radiation; wherein a decrease in the IR radiation received by the receiver indicates presence of water; wherein the electronic circuit comprises an electronic logic circuit adapted to perform a self-test and a self-calibration and notify a user of contamination with dirt or grime; with the electronic logic circuit further adapted to automatically setting the receiver gain independent of an emissivity of the remote surface and of a distance between the remote surface and the non-contact flood and moisture detector. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for detecting water on a remote surface, comprising the steps of:
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directing a source of IR radiation towards the remote surface and emitting an IR radiation and projecting a field of illumination on the remote surface, with a portion of the IR radiation backscattering off the remote surface, and a portion of the IR radiation specularly reflecting off the remote surface; directing a receiver of IR radiation towards the remote surface and measuring IR radiation levels from a field of view on the remote surface; positing the receiver and the source resulting in the field of illumination and the field of view at least partially overlapping and resulting in substantially no specularly reflected IR radiation measured by the receiver; comparing the IR radiation levels to a baseline dry condition and detecting water on the remote surface from decreased IR radiation levels; performing a self-test and a self-calibration and notifying a user of contamination with dirt or grime; automatically setting the receiver gain independent of an emissivity of the remote surface and of a distance between the remote surface and the non-contact flood and moisture detector, storing a water detect threshold in the electronic circuit; comparing the water detect threshold with a voltage output of the receiver and triggering the alarm when the voltage output of the receiver decreases below the water detect threshold; wherein the electronic circuit comprises an electronic logic circuit. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification