GB573028A - Improvements in or relating to temperature control systems - Google Patents

Improvements in or relating to temperature control systems

Info

Publication number
GB573028A
GB573028A GB12759/43A GB1275943A GB573028A GB 573028 A GB573028 A GB 573028A GB 12759/43 A GB12759/43 A GB 12759/43A GB 1275943 A GB1275943 A GB 1275943A GB 573028 A GB573028 A GB 573028A
Authority
GB
United Kingdom
Prior art keywords
curve
temperature
law
potentiometer
bridge
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
GB12759/43A
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.)
Watford Electric and Manufacturing Co Ltd
Original Assignee
Watford Electric and Manufacturing 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
Priority to GB3822/40A priority Critical patent/GB540087A/en
Application filed by Watford Electric and Manufacturing Co Ltd filed Critical Watford Electric and Manufacturing Co Ltd
Priority to GB12759/43A priority patent/GB573028A/en
Publication of GB573028A publication Critical patent/GB573028A/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
    • G05D23/1927—Control of temperature characterised by the use of electric means using a plurality of sensors
    • G05D23/193—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces
    • G05D23/1931—Control of temperature characterised by the use of electric means using a plurality of sensors sensing the temperaure in different places in thermal relationship with one or more spaces to control the temperature of one space
    • 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
    • G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
    • G05D23/1912—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can take more than two discrete values
    • 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

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Remote Sensing (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Control Of Temperature (AREA)
  • Feedback Control In General (AREA)

Abstract

573,028. Electric temperature control systems. VUILLE, B. A., and WATFORD ELECTRIC & MANUFACTURING CO., Ltd. Aug. 6, 1943, No. 12759. Addition to 540,087. [Class 40 (i)] [Also in Group XXXV] Temperature.-A system of temperature control for a building as claimed in the parent Specification, is adapted to vary the heat supplied with variations in outside temperature according to one of a number of related laws and has means responsive to the inside temperature which adjusts the system to operate upon a different one of those laws, when the inside temperature differs from that desired. Fig. 2 for example shows a curve 26 representing such a law. The present invention provides means whereby the slope of such a curve may be varied, for example to the curve 30, and so reduce the operation of the inside temperature control in correcting for an initially provided law which does not suit the conditions in the building. Fig. 1 shows a resistance bridge to which a galvanometer or polarized relay G is connected to operate through a relay system 29, a reversible motor 12 adjusting a valve 11 controlling the supply of heating fluid. The bridge comprises fixed resistances R1, R2, a resistance Re responsive to temperature outside the building and a resistance Rf which varies or is varied in accordance with the temperature or adjustment of the heating fluid supplied. The variation in height of the law (curve 26) is effected by a potentiometer R7 which varies an auxiliary potential in series with the galvanometer G and is operated by means 29 responsive to inside temperature. A potentiometer R5 is connected to the junction of fixed resistances R3, R4 in an additional branch of the bridge and to the junction 17 of resistances R1. Re. Adjustment of the tapping 18 on this potentiometer will alter the slope of the law, for example to a curve such as 30. A manual adjustment of a further potentiometer R6 or of the thermostat 25 will change the height of the curve. Resistances Re, Rf may be interchanged with modified results. Fig. 3 (not shown) shows a modification in which the potentiometers R6, R7 are incorporated in the bridge itself.
GB12759/43A 1940-02-29 1943-08-06 Improvements in or relating to temperature control systems Expired GB573028A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3822/40A GB540087A (en) 1940-02-29 1940-02-29 Improvements in or relating to temperature and like control systems
GB12759/43A GB573028A (en) 1940-02-29 1943-08-06 Improvements in or relating to temperature control systems

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3822/40A GB540087A (en) 1940-02-29 1940-02-29 Improvements in or relating to temperature and like control systems
GB12759/43A GB573028A (en) 1940-02-29 1943-08-06 Improvements in or relating to temperature control systems

Publications (1)

Publication Number Publication Date
GB573028A true GB573028A (en) 1945-11-02

Family

ID=61970609

Family Applications (2)

Application Number Title Priority Date Filing Date
GB3822/40A Expired GB540087A (en) 1940-02-29 1940-02-29 Improvements in or relating to temperature and like control systems
GB12759/43A Expired GB573028A (en) 1940-02-29 1943-08-06 Improvements in or relating to temperature control systems

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB3822/40A Expired GB540087A (en) 1940-02-29 1940-02-29 Improvements in or relating to temperature and like control systems

Country Status (1)

Country Link
GB (2) GB540087A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812142A (en) * 1954-11-03 1957-11-05 Honeywell Regulator Co Hot water heating control system with non-linear water temperature control
US3216662A (en) * 1962-01-19 1965-11-09 Philips Corp Device for regulating the temperature of an enclosure heated by a central heating system
EP0049215A1 (en) * 1980-09-29 1982-04-07 Siemens Aktiengesellschaft Regulation device for heating systems
EP0113262A2 (en) * 1982-11-30 1984-07-11 Electricite De France Method and device to control the heating of spaces

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3024983C2 (en) * 1980-07-02 1989-08-10 Webasto-Werk W. Baier GmbH & Co, 8035 Gauting Method and circuit arrangement for determining an amount of preheating energy
DE3265134D1 (en) * 1981-03-16 1985-09-12 Siemens Ag Control device for heating systems
IT1194355B (en) * 1982-08-28 1988-09-22 Vaillant Joh Gmbh & Co PROCEDURE FOR FORMING A NOMINAL VALUE OF A REGULATION OR COMMAND DEVICE FOR A HEATING SYSTEM
FR2554938B1 (en) * 1983-11-10 1986-09-19 Applic Thermiques Cie Indl PROCESS FOR THE REGULATION OF CENTRAL HEATING INSTALLATIONS AND INSTALLATIONS INCLUDING APPLICATION
CN114542251B (en) * 2022-03-18 2023-01-20 潍柴动力股份有限公司 Electrical heating catalyst carrier resistance fault diagnosis method and system

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2812142A (en) * 1954-11-03 1957-11-05 Honeywell Regulator Co Hot water heating control system with non-linear water temperature control
US3216662A (en) * 1962-01-19 1965-11-09 Philips Corp Device for regulating the temperature of an enclosure heated by a central heating system
EP0049215A1 (en) * 1980-09-29 1982-04-07 Siemens Aktiengesellschaft Regulation device for heating systems
EP0113262A2 (en) * 1982-11-30 1984-07-11 Electricite De France Method and device to control the heating of spaces
EP0113262A3 (en) * 1982-11-30 1984-08-22 Electricite De France Service National Method and device to control the heating of spaces

Also Published As

Publication number Publication date
GB540087A (en) 1941-10-06

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