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Title: Sensor for detection of liquid spills on surfaces

Abstract

A surface liquid detector is disclosed for detecting liquids spilled on surfaces such as floors. A temperature-sensitive thermistor probe is used in a bridge circuit to detect the change in resistance in the thermistor due to the change in thermal conductivity that occurs when a liquid contacts the probe. The device is characterized by the ability to detect either conductive or nonconductive liquids, such as water or oil spills.

Inventors:
 [1];  [1]
  1. Oak Ridge, TN
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
875237
Patent Number(s):
H652
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC04-76
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
sensor; detection; liquid; spills; surfaces; surface; detector; disclosed; detecting; liquids; spilled; floors; temperature-sensitive; thermistor; probe; bridge; circuit; detect; change; resistance; due; thermal; conductivity; occurs; contacts; device; characterized; ability; conductive; nonconductive; water; oil; thermal conductivity; bridge circuit; conductive liquid; surface liquid; /340/73/200/

Citation Formats

Davis, Brent C, and Gayle, Tom M. Sensor for detection of liquid spills on surfaces. United States: N. p., 1989. Web.
Davis, Brent C, & Gayle, Tom M. Sensor for detection of liquid spills on surfaces. United States.
Davis, Brent C, and Gayle, Tom M. Sun . "Sensor for detection of liquid spills on surfaces". United States. https://www.osti.gov/servlets/purl/875237.
@article{osti_875237,
title = {Sensor for detection of liquid spills on surfaces},
author = {Davis, Brent C and Gayle, Tom M},
abstractNote = {A surface liquid detector is disclosed for detecting liquids spilled on surfaces such as floors. A temperature-sensitive thermistor probe is used in a bridge circuit to detect the change in resistance in the thermistor due to the change in thermal conductivity that occurs when a liquid contacts the probe. The device is characterized by the ability to detect either conductive or nonconductive liquids, such as water or oil spills.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1989},
month = {1}
}

Patent:

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