GB1083160A - Industrial regulators - Google Patents

Industrial regulators

Info

Publication number
GB1083160A
GB1083160A GB5085765A GB5085765A GB1083160A GB 1083160 A GB1083160 A GB 1083160A GB 5085765 A GB5085765 A GB 5085765A GB 5085765 A GB5085765 A GB 5085765A GB 1083160 A GB1083160 A GB 1083160A
Authority
GB
United Kingdom
Prior art keywords
deviation
resistor
capacitor
operational amplifier
feedback path
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
GB5085765A
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Publication of GB1083160A publication Critical patent/GB1083160A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B6/00—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B6/02—Internal feedback arrangements for obtaining particular characteristics, e.g. proportional, integral, differential electric
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/36—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential
    • G05B11/42—Automatic controllers electric with provision for obtaining particular characteristics, e.g. proportional, integral, differential for obtaining a characteristic which is both proportional and time-dependent, e.g. P.I., P.I.D.
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06G—ANALOGUE COMPUTERS
    • G06G7/00—Devices in which the computing operation is performed by varying electric or magnetic quantities
    • G06G7/12—Arrangements for performing computing operations, e.g. operational amplifiers
    • G06G7/18—Arrangements for performing computing operations, e.g. operational amplifiers for integration or differentiation; for forming integrals

Abstract

1,083,160. Automatic control. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. Nov. 30, 1965 [Dec. 8, 1964], No.50857/65. Heading G3R. In an industrial regulator, an operational amplifier, responsive to the deviation of a measured value from a desired value to provide a control value to a process member, is provided with a proportional control potentiometer in the input circuit and integrating and differentiating circuits in the feedback path. As shown, an error signal is derived from a comparator 13 and fed through a proportioning potentiometer 12 and resistor 11 to an operational amplifier A. The feedback path between points 5, 4 is provided by a capacitor 3, and resistors 1, 2. The differentiating circuit is formed by the ganging of the resistor 2 and a resistor 7 through slider 6 and a capacitor 8 and the integrating circuit by the capacitor 3 and an adjustable resistor 10. The differentiating and integrating circuits are cut out by an isolating switch 9 and a short-circuiting switch 14 respectively. In a modification, a deviation detector is provided, which, when the deviation exceeds a predetermined value actuates a relay to modify the input and feedback path of the operational amplifier so that its output is in the form of a ramp function causing the deviation to be progressively reduced to below the predetermined value when the deviation detector restores the regulator to normal operation.
GB5085765A 1964-12-08 1965-11-30 Industrial regulators Expired GB1083160A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR997842A FR1425459A (en) 1964-12-08 1964-12-08 Improvements to industrial regulators

Publications (1)

Publication Number Publication Date
GB1083160A true GB1083160A (en) 1967-09-13

Family

ID=8844320

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5085765A Expired GB1083160A (en) 1964-12-08 1965-11-30 Industrial regulators

Country Status (5)

Country Link
AT (1) AT261070B (en)
BE (1) BE673115A (en)
DE (1) DE1292900B (en)
FR (1) FR1425459A (en)
GB (1) GB1083160A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802013B1 (en) * 1968-10-09 1971-02-11 Hartmann & Braun Ag Electrical control device for smooth manual / automatic switchover
JPS49124482A (en) * 1973-04-04 1974-11-28

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1074127B (en) * 1956-05-30 1960-01-28 Siemens Schuckertwerke Aktien gesellschaft Berlin und Erlangen TWO-POINT CONTROLLER USING A CONTINUOUS AMPLIFIER WITH TILTING CHARACTERISTIC CURVE THROUGH SUPER CRITICAL LOW INERTIA COUPLING

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1802013B1 (en) * 1968-10-09 1971-02-11 Hartmann & Braun Ag Electrical control device for smooth manual / automatic switchover
JPS49124482A (en) * 1973-04-04 1974-11-28
JPS5527362B2 (en) * 1973-04-04 1980-07-19

Also Published As

Publication number Publication date
BE673115A (en) 1966-06-01
FR1425459A (en) 1966-01-24
DE1292900B (en) 1969-04-17
AT261070B (en) 1968-04-10

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