Side-welded fast response sheathed thermocouple

Patent ·

OSTI ID:5468443

Carr, K R

A method of fabricating the measuring junction of a grounded-junction sheathed thermocouple to obtain fast time response and good thermal cycling performance is provided. Slots are tooled or machined into the sheath wall at the measuring junction, the thermocouple wires are laser-welded into the slots. A thin metal closure cap is then laser-welded over the end of the sheath. Compared to a conventional grounded-junction thermocouple, the response time is 4 to 5 times faster and the thermal shock and cycling capabilities are substantially improved.

• DOE Contract Number: W-7405-ENG-26
• Assignee: TIC; ERA-05-019268; EDB-80-050843
• OSTI ID: 5468443
• Country of Publication: United States
• Language: English

Related Subjects

47 OTHER INSTRUMENTATION
22 GENERAL STUDIES OF NUCLEAR REACTORS
JUNCTIONS
DESIGN
THERMOCOUPLES
CANNING
CLOSURES
ELECTRIC CABLES
FABRICATION
LASER WELDING
MACHINING
MEASURING METHODS
REACTOR COMPONENTS
RESPONSE FUNCTIONS
THERMAL CYCLING
TIME RESOLUTION
WALLS
CABLES
CONDUCTOR DEVICES
ELECTRICAL EQUIPMENT
EQUIPMENT
FUNCTIONS
JOINING
MATERIALS WORKING
MEASURING INSTRUMENTS
RESOLUTION
TIMING PROPERTIES
WELDING
440300* - Miscellaneous Instruments- (-1989)
220200 - Nuclear Reactor Technology- Components & Accessories