GB1006511A - Servomechanism - Google Patents

Servomechanism

Info

Publication number
GB1006511A
GB1006511A GB28816/62A GB2881662A GB1006511A GB 1006511 A GB1006511 A GB 1006511A GB 28816/62 A GB28816/62 A GB 28816/62A GB 2881662 A GB2881662 A GB 2881662A GB 1006511 A GB1006511 A GB 1006511A
Authority
GB
United Kingdom
Prior art keywords
thermopile
piston
compartment
fluid
shaft
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
GB28816/62A
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.)
Controle Bailey SA
Original Assignee
Controle Bailey 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 Controle Bailey SA filed Critical Controle Bailey SA
Publication of GB1006511A publication Critical patent/GB1006511A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/06—Use of special fluids, e.g. liquid metal; Special adaptations of fluid-pressure systems, or control of elements therefor, to the use of such fluids
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G05D16/20—Control of fluid pressure characterised by the use of electric means
    • G05D16/2006—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means
    • G05D16/2066—Control of fluid pressure characterised by the use of electric means with direct action of electric energy on controlling means using controlling means acting on the pressure source
    • 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
    • G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
    • G05D23/1921—Control of temperature characterised by the use of electric means characterised by the type of controller using a thermal motor
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
  • Actuator (AREA)

Abstract

1,006,511. Electric positional control. CONTROLE BAILEY. July 26, 1962 [Aug. 11, 1961], No. 28816/62. Heading G1N. In a servo-mechanism, the position of a spring-loaded shaft 7 is determined by the differential vapour pressure of condensable fluid such as butane in two compartments 12,13 of a cylinder 1 separated by a piston 8 connected to shaft 7, the fluid in compartment 13 being heated or cooled by a Peltier effect thermopile 3 in accordance with the sense and magnitude of the supply current to the thermopile, which is the amplified algebraic sum of a control signal applied at terminals 19 and a shaft position feedback signal produced by a differential transformer 15 and rectified by bridge 17. The cylinder 1 and piston 8 are heat-insulated at 4 and 9, while thermal contact between the fluid in compartment 13 and the thermopile is enhanced by fins 14. A compressible material of low thermal conductivity may be disposed in chamber 13 to retard heat transfer when the upper surface of the thermopile is the cooler. In a modification adapted for use with a unidirectional error current, the thermopile is mounted in the piston, and the bottom compartment, which is normally the hotter, contains a compressible substance having good thermal conductivity e.g. metal shavings.
GB28816/62A 1961-08-11 1962-07-26 Servomechanism Expired GB1006511A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR870748A FR1306655A (en) 1961-08-11 1961-08-11 Vapor pressure servo-mechanism

Publications (1)

Publication Number Publication Date
GB1006511A true GB1006511A (en) 1965-10-06

Family

ID=8761215

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28816/62A Expired GB1006511A (en) 1961-08-11 1962-07-26 Servomechanism

Country Status (3)

Country Link
DE (1) DE1426468A1 (en)
FR (1) FR1306655A (en)
GB (1) GB1006511A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650110A1 (en) * 1993-10-21 1995-04-26 Desgranges Et Huot S.A. Process and device for fluid pressure generation and/or control using Peltier effect modules

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0650110A1 (en) * 1993-10-21 1995-04-26 Desgranges Et Huot S.A. Process and device for fluid pressure generation and/or control using Peltier effect modules
FR2711815A1 (en) * 1993-10-21 1995-05-05 Desgranges Huot Method and device for generating and / or regulating the pressure of a fluid using Peltier effect modules.

Also Published As

Publication number Publication date
DE1426468A1 (en) 1969-04-03
FR1306655A (en) 1962-10-19

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