Water level sensor and temperature profile detector

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864561

Tokarz, Richard D ^[1]

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1. West Richland, WA

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.

• Research Organization: Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
• DOE Contract Number: EY-76-C-06-1830
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4385519
• OSTI ID: 864561
• Country of Publication: United States
• Language: English

Related Subjects

water
level
sensor
temperature
profile
detector
comprising
surrounding
length
metal
tubing
interior
electrical
conductor
constructed
resistance
materials
plurality
gas-filled
expandable
bellows
electrically
conductive
material
connected
positioned
sealed
contain
predetermined
volume
gas
designed
effect
movement
circuit
condition
closed
response
monitored
changes
sensed
profile detector
temperature change
water level
temperature changes
level sensor
temperature profile
predetermined volume
conductive material
electrically conductive
electrical resistance
electrically connected
electrical conductor
closed circuit
metal tubing
effect movement
detector comprising
circuit condition
/73/374/376/