GB1114874A - High temperature thermocouples - Google Patents

High temperature thermocouples

Info

Publication number
GB1114874A
GB1114874A GB3450465A GB3450465A GB1114874A GB 1114874 A GB1114874 A GB 1114874A GB 3450465 A GB3450465 A GB 3450465A GB 3450465 A GB3450465 A GB 3450465A GB 1114874 A GB1114874 A GB 1114874A
Authority
GB
United Kingdom
Prior art keywords
thermocouple
thermocouples
temperature
joints
butt joints
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3450465A
Inventor
Jay D Meador
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Motors Liquidation Co
Original Assignee
Motors Liquidation Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB1114874A publication Critical patent/GB1114874A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
    • G01K7/02—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples
    • G01K7/04—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using thermoelectric elements, e.g. thermocouples the object to be measured not forming one of the thermoelectric materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K13/00—Thermometers specially adapted for specific purposes
    • G01K13/02—Thermometers specially adapted for specific purposes for measuring temperature of moving fluids or granular materials capable of flow

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)

Abstract

1,114,874. Thermocouples. GENERAL MOTORS CORPORATION. 12 May, 1967, No. 34504/65. Heading H1K. A high temperature thermocouple comprises a junction between a pair of different noble metal conductors the ends of which are connected to compensating leads. As shown, Fig. 1, a thermocouple assembly for measuring the temperature of the gas inlet to a gas turbine engine comprises an element 16 of 50% Pt, 40% Pd, 10% Au forming a junction 20 with an element 18 of 65% Au, 35% Pd. The ends of elements 16 and 18 are butt welded at 22 and 28 to a chromel conductor 26 and a nickeliron-manganese conductor 24 respectively. Two such thermocouples are contained in a stainless steel sleeve 15 from which they are insulated by a magnesium oxide mass 13. The noble metal thermocouple produces the same EMF as a thermocouple formed from the conductors 24, 26 at 1300‹ F., and in order to compensate for the voltages generated at butt joints 22, 28 these joints are maintained at 1300‹ F. by placing the thermocouple assembly at an appropriate distance into the gas stream, in which there is a transverse temperature gradient. The insulation (23) surrounding the butt joints (22, 28) may comprise beryllium oxide, Fig. 3 (not shown), and the butt joints may be staggered, Fig. 4 (not shown) to ensure that they are at the same temperature.
GB3450465A 1964-09-21 1967-05-12 High temperature thermocouples Expired GB1114874A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US39785964A 1964-09-21 1964-09-21

Publications (1)

Publication Number Publication Date
GB1114874A true GB1114874A (en) 1968-05-22

Family

ID=23572961

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3450465A Expired GB1114874A (en) 1964-09-21 1967-05-12 High temperature thermocouples
GB689068A Expired GB1150396A (en) 1964-09-21 1968-02-12 Thermocouple System

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB689068A Expired GB1150396A (en) 1964-09-21 1968-02-12 Thermocouple System

Country Status (2)

Country Link
DE (1) DE1573180A1 (en)
GB (2) GB1114874A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2124706B (en) * 1982-08-04 1986-05-14 Gen Electric Gas turbine engine airflow temperature sensor
US4991976A (en) * 1989-05-31 1991-02-12 Weed Instruments Company, Inc. Temperature sensor probe apparatus and method for improving time response
US4987749A (en) * 1990-03-29 1991-01-29 American Standard Inc. Thermistor probe for exposed sensing element for direct immersion in refrigerant flows
US5449234A (en) * 1993-11-29 1995-09-12 Caterpillar Inc. Air temperature sensor
US5427452A (en) * 1994-01-10 1995-06-27 Thiokol Corporation Rugged quick-response thermocouple for use in evaluating gas generants and gas generators
DE19508916A1 (en) * 1995-03-11 1996-09-12 Abb Management Ag High temperature probe

Also Published As

Publication number Publication date
GB1150396A (en) 1969-04-30
DE1573180A1 (en) 1970-10-22

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