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Sensor for detection of liquid spills on surfaces

Patent ·
OSTI ID:875237
 [1];  [1]
  1. Oak Ridge, TN
+ Show Author Affiliations
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.
Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-76DP00789
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
H000652
Application Number:
07/233092
OSTI ID:
875237
Country of Publication:
United States
Language:
English

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