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GB1518502A - Temperature control system - Google Patents

Temperature control system

Info

Publication number
GB1518502A
GB1518502A GB28833/74A GB2883374A GB1518502A GB 1518502 A GB1518502 A GB 1518502A GB 28833/74 A GB28833/74 A GB 28833/74A GB 2883374 A GB2883374 A GB 2883374A GB 1518502 A GB1518502 A GB 1518502A
Authority
GB
United Kingdom
Prior art keywords
temperature
heaters
june
heating
controller
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
GB28833/74A
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.)
Stein Atkinson Stordy Ltd
Original Assignee
Stein Atkinson Stordy 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 Stein Atkinson Stordy Ltd filed Critical Stein Atkinson Stordy Ltd
Priority to GB28833/74A priority Critical patent/GB1518502A/en
Priority to NL7507393A priority patent/NL7507393A/en
Priority to DE19752528887 priority patent/DE2528887A1/en
Priority to BE157689A priority patent/BE830654A/en
Publication of GB1518502A publication Critical patent/GB1518502A/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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Control Of Temperature (AREA)

Abstract

1518502 Temperature control STEIN ATKINSON STORDY Ltd 18 June 1975 [28 June 1974] 28833/74 Heading G3R To control a heating means such as a furnace 10, a temperature measured at 18 is compared with a desired temperature in a controller 19A whose output is used to energize any or all of three heaters 13, 14, 15 whose heating capacities are such that the second is greater than the first and the third greater than the other two combined. Preferably their respective power outputs are in the ratio 1:2:4 so that seven equi-spaced discrete levels of power output are available. There may be more than three heaters; in particular a plurality of independent three-heater systems may be provided at separate locations within the same furnace. The controller preferably develops a PID function of the temperature error, derives from this an analogue signal for determining the heating power needed and employs an A/D converter to provide the heater-switching command signals. Suitable circuits (not shown) are disclosed.
GB28833/74A 1974-06-28 1974-06-28 Temperature control system Expired GB1518502A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB28833/74A GB1518502A (en) 1974-06-28 1974-06-28 Temperature control system
NL7507393A NL7507393A (en) 1974-06-28 1975-06-20 TEMPERATURE CONTROL SYSTEM.
DE19752528887 DE2528887A1 (en) 1974-06-28 1975-06-26 SYSTEM FOR HEATING AND CONTROL DEVICES
BE157689A BE830654A (en) 1974-06-28 1975-06-26 TEMPERATURE CONTROL SYSTEM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28833/74A GB1518502A (en) 1974-06-28 1974-06-28 Temperature control system

Publications (1)

Publication Number Publication Date
GB1518502A true GB1518502A (en) 1978-07-19

Family

ID=10281895

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28833/74A Expired GB1518502A (en) 1974-06-28 1974-06-28 Temperature control system

Country Status (4)

Country Link
BE (1) BE830654A (en)
DE (1) DE2528887A1 (en)
GB (1) GB1518502A (en)
NL (1) NL7507393A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826137A1 (en) * 2001-06-18 2002-12-20 Paul Ducourret Method, for bringing wine to ideal consumption temperature, involves heating wine until electronic sensor indicates that wine has reached temperature just below ideal consumption temperature
CN119916869A (en) * 2025-04-07 2025-05-02 武汉克莱美特环境设备有限公司 A temperature control method and system for a natural convection constant temperature test chamber

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815404C2 (en) * 1978-04-10 1984-08-30 Danfoss A/S, Nordborg Step regulator for several power elements
US4317985A (en) * 1979-05-29 1982-03-02 Hewlett-Packard Company Dual heater stabilization apparatus and method for a crystal oven
DE3343072A1 (en) * 1983-11-29 1985-07-25 Gerd Dipl.-Ing. 3002 Wedemark Geisler Device for keeping the temperature of a liquid constant

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2826137A1 (en) * 2001-06-18 2002-12-20 Paul Ducourret Method, for bringing wine to ideal consumption temperature, involves heating wine until electronic sensor indicates that wine has reached temperature just below ideal consumption temperature
EP1273988A3 (en) * 2001-06-18 2003-12-17 Paul Ducourret Apparatus and method for heating wine or another food product to its preferred consumption temperature
CN119916869A (en) * 2025-04-07 2025-05-02 武汉克莱美特环境设备有限公司 A temperature control method and system for a natural convection constant temperature test chamber

Also Published As

Publication number Publication date
NL7507393A (en) 1975-12-30
DE2528887A1 (en) 1976-05-20
BE830654A (en) 1975-10-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee
728C Application made for restoration (sect. 28/1977)
728A Order made restoring the patent (sect. 28/1977)
PCNP Patent ceased through non-payment of renewal fee