GB1017430A - Improvements in or relating to temperature control and measuring apparatus - Google Patents

Improvements in or relating to temperature control and measuring apparatus

Info

Publication number
GB1017430A
GB1017430A GB1515163A GB1515163A GB1017430A GB 1017430 A GB1017430 A GB 1017430A GB 1515163 A GB1515163 A GB 1515163A GB 1515163 A GB1515163 A GB 1515163A GB 1017430 A GB1017430 A GB 1017430A
Authority
GB
United Kingdom
Prior art keywords
temperature
block
measuring
thermopile
heater
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
GB1515163A
Inventor
James Stewart Johnston
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 GB1515163A priority Critical patent/GB1017430A/en
Publication of GB1017430A publication Critical patent/GB1017430A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D23/00—Control of temperature
    • G05D23/19—Control of temperature characterised by the use of electric means
    • G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
    • G05D23/2033—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature details of the sensing element
    • G05D23/2034—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature details of the sensing element the sensing element being a semiconductor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Radiation Pyrometers (AREA)

Abstract

1,017,430. Measuring temperature electrically. ROSEMOUNT ENGINEERING CO. Ltd. and J. S. JOHNSTON. March 19, 1964 [April 17, 1963], No. 15151/63. Heading G1N. Apparatus for measuring the temperature of a body 11 (Fig. 1) comprises a semi-conductor thermopile 12 for measuring the temperature difference between the body and a locally disposed block 10, and a heater 17 in the block 10 for maintaining this temperature difference at a constant value, whereby the temperature of the block 10, as measured by a temperature-sensitive resistor 18, is indicative of the temperature of the body 11. The block 10 is covered with lagging 13 except on the surface facing the body 11. The heater 17 may be controlled automatically from the output of thermopile 12 amplified at 16 and augmented with a first derivative of the temperature signal. The apparatus may be used to control the heat flow from the body 11 and at any predetermined value by suitably biasing the input to amplifier 16.
GB1515163A 1963-04-17 1963-04-17 Improvements in or relating to temperature control and measuring apparatus Expired GB1017430A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1515163A GB1017430A (en) 1963-04-17 1963-04-17 Improvements in or relating to temperature control and measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1515163A GB1017430A (en) 1963-04-17 1963-04-17 Improvements in or relating to temperature control and measuring apparatus

Publications (1)

Publication Number Publication Date
GB1017430A true GB1017430A (en) 1966-01-19

Family

ID=10053945

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1515163A Expired GB1017430A (en) 1963-04-17 1963-04-17 Improvements in or relating to temperature control and measuring apparatus

Country Status (1)

Country Link
GB (1) GB1017430A (en)

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