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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
Publication Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
875237
Patent Number(s):
H000652
Application Number:
07/233092
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
AC04-76DP00789
Resource Type:
Patent
Resource Relation:
Patent File Date: 1988 Aug 17
Country of Publication:
United States
Language:
English
Subject:
statutory invention registration; 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. 1989. "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 = {},
url = {https://www.osti.gov/biblio/875237}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 1989},
month = {Sun Jan 01 00:00:00 EST 1989}
}