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; EDB-80-050843; ERA-05-019268
• Patent Number(s): None
• OSTI ID: 5468443
• Country of Publication: United States
• Language: English

Related Subjects

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