GB747828A - Improvements in electric thermometers - Google Patents

Improvements in electric thermometers

Info

Publication number
GB747828A
GB747828A GB29863/52A GB2986352A GB747828A GB 747828 A GB747828 A GB 747828A GB 29863/52 A GB29863/52 A GB 29863/52A GB 2986352 A GB2986352 A GB 2986352A GB 747828 A GB747828 A GB 747828A
Authority
GB
United Kingdom
Prior art keywords
coils
thermistor
nov
battery
meter
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
GB29863/52A
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.)
ED Jaeger SA
Original Assignee
ED Jaeger SA
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 ED Jaeger SA filed Critical ED Jaeger SA
Publication of GB747828A publication Critical patent/GB747828A/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
    • 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
    • G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measuring Magnetic Variables (AREA)

Abstract

747,828. Measuring instruments. ETABLISSMENTS E. JAEGER. Nov. 25, 1952 [Nov. 29, 1951], No. 29863/52. Class 37. [Also in Group XXXVIII] A moving iron meter for measuring temperature (see, Group XXXVIII) comprises a pointer 35 rigid with a magnetic vane 59 and balancing elements 62, 63, Fig. 10, pivoted at 34 with the vane between interlaced coils 42, 43, Figs. 5, 6, disposed at substantially 120 degrees to one another on a paramagnetic moulded base 30, Fig. 7 (not shown). The coils are adjustable relative to each other and to the base for zeroizing purposes. Variations in the voltage of the battery, Fig. 13, are compensated by shunting one coil 43 across the battery, in parallel with the series connected coil 42, and the temperature responsive thermistor 1B, a further resistor 66 being shunted across the thermistor for controlling the range of the meter. In Fig. 14 (not shown), the currents in both coils vary differentially with the thermistor resistance variations. Specification 605,386 is referred to. Reference has been directed by the Comproller to Specification 558,299.
GB29863/52A 1951-11-29 1952-11-25 Improvements in electric thermometers Expired GB747828A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR747828X 1951-11-29

Publications (1)

Publication Number Publication Date
GB747828A true GB747828A (en) 1956-04-18

Family

ID=9148161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29863/52A Expired GB747828A (en) 1951-11-29 1952-11-25 Improvements in electric thermometers

Country Status (1)

Country Link
GB (1) GB747828A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008331A (en) * 1959-05-01 1961-11-14 Gen Electric Temperature sensing device
US3107531A (en) * 1960-01-28 1963-10-22 Gen Motors Corp Electrical temperature indicating systems
EP0125366A1 (en) * 1983-03-22 1984-11-21 Bowthorpe Components Limited Temperature sensors

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3008331A (en) * 1959-05-01 1961-11-14 Gen Electric Temperature sensing device
US3107531A (en) * 1960-01-28 1963-10-22 Gen Motors Corp Electrical temperature indicating systems
EP0125366A1 (en) * 1983-03-22 1984-11-21 Bowthorpe Components Limited Temperature sensors
US4702619A (en) * 1983-03-22 1987-10-27 Standard Telephones And Cables Public Limited Company Temperature sensors

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