GB1372191A - Temperature-sensing devices - Google Patents

Temperature-sensing devices

Info

Publication number
GB1372191A
GB1372191A GB3224670A GB3224670A GB1372191A GB 1372191 A GB1372191 A GB 1372191A GB 3224670 A GB3224670 A GB 3224670A GB 3224670 A GB3224670 A GB 3224670A GB 1372191 A GB1372191 A GB 1372191A
Authority
GB
United Kingdom
Prior art keywords
thermistor
temperature
air temperature
centre
room
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
GB3224670A
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.)
Eaton Williams Group Ltd
Original Assignee
Eaton Williams Group 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 Eaton Williams Group Ltd filed Critical Eaton Williams Group Ltd
Priority to GB3224670A priority Critical patent/GB1372191A/en
Publication of GB1372191A publication Critical patent/GB1372191A/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
    • G01K7/16—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
    • G01K7/22—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 non-linear resistance, e.g. thermistor
    • G01K7/24—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 non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
    • G01K7/25—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 non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit for modifying the output characteristic, e.g. linearising

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Thermistors And Varistors (AREA)

Abstract

1372191 Temperature sensitive device EATON-WILLIAMS PRODUCTS Ltd 4 Oct 1971 [2 July 1970] 32246/70 Heading G1A In a temperature sensing device for use in a central heating system a thermistor 11 is mounted at the centre of a hollow glass or metal member whose surfaces have a matt black coating preferably by means of an ebonite lacquer. The leads 14 and 15 of the thermistor pass, as shown, via glass tubes to contacts 17 and 18 in a cap member 16 which is adapted to be fitted into a bayonet fitting type lamp holder. A circuit Fig. 2 (not shown) for the thermistor is disclosed comprising a variable resistor which is connected in series with the thermistor so that the voltage across the thermistor varies linearly with temperature. In the main embodiment the device is positioned in a room and provides a reading equivalent to half the mean radiation temperature plus half the air temperature, but in an alternative arrangement the device is placed on the outside wall of a building together with an air temperature-sensing element consisting of a thermistor at the centre of a polished bulb, the difference between the two outputs providing a measure of the solar radiation which is used in conjunction with a measurement from a conventional air temperature sensor located in a room to be controlled.
GB3224670A 1971-10-04 1971-10-04 Temperature-sensing devices Expired GB1372191A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3224670A GB1372191A (en) 1971-10-04 1971-10-04 Temperature-sensing devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3224670A GB1372191A (en) 1971-10-04 1971-10-04 Temperature-sensing devices

Publications (1)

Publication Number Publication Date
GB1372191A true GB1372191A (en) 1974-10-30

Family

ID=10335605

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3224670A Expired GB1372191A (en) 1971-10-04 1971-10-04 Temperature-sensing devices

Country Status (1)

Country Link
GB (1) GB1372191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113465755A (en) * 2020-03-31 2021-10-01 北京振兴计量测试研究所 Indirect test method for steady-state radiation temperature

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113465755A (en) * 2020-03-31 2021-10-01 北京振兴计量测试研究所 Indirect test method for steady-state radiation temperature

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee