GB717977A - Improvements relating to regulating systems - Google Patents

Improvements relating to regulating systems

Info

Publication number
GB717977A
GB717977A GB8715/52A GB871552A GB717977A GB 717977 A GB717977 A GB 717977A GB 8715/52 A GB8715/52 A GB 8715/52A GB 871552 A GB871552 A GB 871552A GB 717977 A GB717977 A GB 717977A
Authority
GB
United Kingdom
Prior art keywords
control
relay
servomotor
feedback
temperature sensitive
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
GB8715/52A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB717977A publication Critical patent/GB717977A/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
    • G05D23/24—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
    • G05D23/2451—Details of the regulator
    • G05D23/2456—Details of the regulator using selfs or transformers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Feedback Control In General (AREA)

Abstract

717,977. Automatic control systems. LANDIS & GYR AKT.-GES. April 4, 1952 [April 6, 1951], No. 8715/52. Class 38(4) A resistance detector 1 (e.g. temperature sensitive resistor) is arranged in a bridge circuit to control through a magnetic amplifier 11 a relay 14 energizing e.g. a damper-operating solenoid 40. Various combinations with feed back circuits, and reversible servomotors are described: (i) current feedback from the relay may be applied to a control winding 20 to impart a snap-action to the amplifier operation; (ii) alternatively feedback may be applied by heating one of a pair of temperature sensitive resistors 21, 22 in the bridge circuit when the relay operates to cause cycling, in addition the other temperature sensitive-resistor may be heated with a longer time constant heater to produce a proportional plus integral type of control; (iii) a balanced differential circuit may be used instead of a bridge, Fig. 3 (not shown); (iv) a biased relay may be used to control a reversible servomotor, Fig. 4 (not shown) or a pair of magnetic amplifiers may be connected differentially to a double wound relay controlling a reversible servomotor, Fig. 5 (not shown); (v) a displacement feedback potentiometer driven by the servomotor may be connected (a) in the bridge circuit, Fig. 6 (not shown) or (b) to a separate control winding on the amplifier, Fig. 7 (not shown), or thermal type feedback (see ii above) may be used with the servomotor control.Fig. 8 (not shown).
GB8715/52A 1951-04-06 1952-04-04 Improvements relating to regulating systems Expired GB717977A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH717977X 1951-04-06
CH510498X 1951-04-06
CH1058974X 1951-04-06
CH289513T 1951-04-06

Publications (1)

Publication Number Publication Date
GB717977A true GB717977A (en) 1954-11-03

Family

ID=62200116

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8715/52A Expired GB717977A (en) 1951-04-06 1952-04-04 Improvements relating to regulating systems

Country Status (4)

Country Link
BE (1) BE510498A (en)
CH (1) CH289513A (en)
FR (1) FR1058974A (en)
GB (1) GB717977A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894198A (en) * 1956-05-18 1959-07-07 Penn Controls Magnetic amplifier circuit
DE1087668B (en) * 1957-05-31 1960-08-25 Continental Elektro Ind Ag Device for speed or frequency dependent control of an electrical switch
DE1148309B (en) * 1957-07-31 1963-05-09 Siemens Ag Adjustment of the switch-on and switch-off brightness of a light-controlled switch, especially twilight switch

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1072696B (en) * 1960-01-07
DE1075714B (en) * 1960-02-18 Fernseh GmbH, Darmstadt Tax arrangement
DE1058239B (en) * 1953-10-21 1959-05-27 Stone J & Co Ltd Device for controlling air conditioning systems
GB871564A (en) * 1956-03-16 1961-06-28 Fritz Ludwig Felix Steghart Improvements in or relating to automatic electronic controllers
DE1210099B (en) * 1959-02-04 1966-02-03 Siemens Elektrogeraete Gmbh Control circuit for electric hotplates and similar heaters
DE1115342B (en) * 1959-02-18 1961-10-19 Standard Elektrik Lorenz Ag Electrical controller with PI behavior
GB902896A (en) * 1960-02-09 1962-08-09 Stone J & Co Ltd Improvements relating to temperature-control apparatus
GB947232A (en) * 1961-12-22 1964-01-22 Stone J & Co Ltd Improvements relating to temperature control for a compartmental vehicle
DE1290433B (en) * 1962-11-13 1969-03-06 Bodenseewerk Perkin Elmer Co Flight controller with position and speed feedback
DE1217483B (en) * 1963-07-17 1966-05-26 Philips Patentverwaltung Discontinuous electronic regulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2894198A (en) * 1956-05-18 1959-07-07 Penn Controls Magnetic amplifier circuit
DE1087668B (en) * 1957-05-31 1960-08-25 Continental Elektro Ind Ag Device for speed or frequency dependent control of an electrical switch
DE1148309B (en) * 1957-07-31 1963-05-09 Siemens Ag Adjustment of the switch-on and switch-off brightness of a light-controlled switch, especially twilight switch

Also Published As

Publication number Publication date
BE510498A (en) 1952-04-30
FR1058974A (en) 1954-03-22
CH289513A (en) 1953-03-15

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