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U.S. Department of Energy
Office of Scientific and Technical Information

Water level sensor and temperature profile detector

Patent ·
OSTI ID:5933425
A temperature profile detector comprising a surrounding length of metal tubing and an interior electrical conductor both constructed of high temperature high electrical resistance materials. A plurality of gas-filled expandable bellows made of electrically conductive material is electrically connected to the interior electrical conductor and positioned within the length of metal tubing. The bellows are sealed and contain a predetermined volume of a gas designed to effect movement of the bellows from an open circuit condition to a closed circuit condition in response to monitored temperature changes sensed by each bellows.
Assignee:
Dept. of Energy
Patent Number(s):
US 4385519
OSTI ID:
5933425
Country of Publication:
United States
Language:
English