FR2293701A1 - Electrical resistance thermometer wound on cylindrical mandrel - is placed in metallic sheath with ceramic cement around ohmic element - Google Patents

Electrical resistance thermometer wound on cylindrical mandrel - is placed in metallic sheath with ceramic cement around ohmic element

Info

Publication number
FR2293701A1
FR2293701A1 FR7440028A FR7440028A FR2293701A1 FR 2293701 A1 FR2293701 A1 FR 2293701A1 FR 7440028 A FR7440028 A FR 7440028A FR 7440028 A FR7440028 A FR 7440028A FR 2293701 A1 FR2293701 A1 FR 2293701A1
Authority
FR
France
Prior art keywords
electrical resistance
ceramic cement
metallic sheath
resistance thermometer
wound
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.)
Granted
Application number
FR7440028A
Other languages
French (fr)
Other versions
FR2293701B1 (en
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.)
Emerson Process Management Ltd
Original Assignee
Rosemount Engineering Co Ltd
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 Rosemount Engineering Co Ltd filed Critical Rosemount Engineering Co Ltd
Priority to FR7440028A priority Critical patent/FR2293701A1/en
Publication of FR2293701A1 publication Critical patent/FR2293701A1/en
Application granted granted Critical
Publication of FR2293701B1 publication Critical patent/FR2293701B1/fr
Granted 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
    • G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
    • G01K1/16—Special arrangements for conducting heat from the object to the sensitive element
    • 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
    • G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
    • G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermistors And Varistors (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)

Abstract

The electrical resistance thermometer has an ohmic material sensitive to temperature place on a rigid, cylindrical, hollow mandrel which is porous or perforated and open at one of its extremities. The ohmic material is electrically isolated from the mandrel (when this is made from a conducting material). An external metallic sheath is provided together with a ceramic cement around the thermosensitive ohmic material which is placed within the sheath. The mandrel is pref. coated with a ceramic cement incorporating aluminium or magnesium oxide subsequently treated with phosphoric acid. Around the cement is a serpentine winding of resistance wire, typically very pure platinum.
FR7440028A 1974-12-06 1974-12-06 Electrical resistance thermometer wound on cylindrical mandrel - is placed in metallic sheath with ceramic cement around ohmic element Granted FR2293701A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7440028A FR2293701A1 (en) 1974-12-06 1974-12-06 Electrical resistance thermometer wound on cylindrical mandrel - is placed in metallic sheath with ceramic cement around ohmic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440028A FR2293701A1 (en) 1974-12-06 1974-12-06 Electrical resistance thermometer wound on cylindrical mandrel - is placed in metallic sheath with ceramic cement around ohmic element

Publications (2)

Publication Number Publication Date
FR2293701A1 true FR2293701A1 (en) 1976-07-02
FR2293701B1 FR2293701B1 (en) 1977-10-28

Family

ID=9145670

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440028A Granted FR2293701A1 (en) 1974-12-06 1974-12-06 Electrical resistance thermometer wound on cylindrical mandrel - is placed in metallic sheath with ceramic cement around ohmic element

Country Status (1)

Country Link
FR (1) FR2293701A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929092A (en) * 1987-06-12 1990-05-29 Mitsubishi Jukogyo Kabushiki Kaisha Resistance temperature detector

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107014513B (en) * 2017-04-14 2020-03-31 东南大学 Sleeve type platinum resistor temperature sensing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929092A (en) * 1987-06-12 1990-05-29 Mitsubishi Jukogyo Kabushiki Kaisha Resistance temperature detector

Also Published As

Publication number Publication date
FR2293701B1 (en) 1977-10-28

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Legal Events

Date Code Title Description
ST Notification of lapse