GB1516880A - Servo arrangement - Google Patents

Servo arrangement

Info

Publication number
GB1516880A
GB1516880A GB37369/75A GB3736975A GB1516880A GB 1516880 A GB1516880 A GB 1516880A GB 37369/75 A GB37369/75 A GB 37369/75A GB 3736975 A GB3736975 A GB 3736975A GB 1516880 A GB1516880 A GB 1516880A
Authority
GB
United Kingdom
Prior art keywords
oscillator
detector
current
sept
switch
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
GB37369/75A
Other languages
English (en)
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.)
BASF SE
Original Assignee
BASF SE
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 BASF SE filed Critical BASF SE
Publication of GB1516880A publication Critical patent/GB1516880A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/12—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to underload or no-load
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
    • G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/4802—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage by using electronic circuits in general
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/145—Indicating the presence of current or voltage
    • 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
    • G05B23/00—Testing or monitoring of control systems or parts thereof
    • G05B23/02—Electric testing or monitoring
    • G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
    • G05B23/0218—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults
    • G05B23/0256—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterised by the fault detection method dealing with either existing or incipient faults injecting test signals and analyzing monitored process response, e.g. injecting the test signal while interrupting the normal operation of the monitored system; superimposing the test signal onto a control signal during normal operation of the monitored system
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/28—Testing of electronic circuits, e.g. by signal tracer
    • G01R31/282—Testing of electronic circuits specially adapted for particular applications not provided for elsewhere
    • G01R31/2829—Testing of circuits in sensor or actuator systems

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Electronic Switches (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Ac Motors In General (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
GB37369/75A 1974-09-12 1975-09-11 Servo arrangement Expired GB1516880A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US505322A US3903430A (en) 1974-09-12 1974-09-12 Low loss circuit fail detector

Publications (1)

Publication Number Publication Date
GB1516880A true GB1516880A (en) 1978-07-05

Family

ID=24009865

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37369/75A Expired GB1516880A (en) 1974-09-12 1975-09-11 Servo arrangement

Country Status (6)

Country Link
US (1) US3903430A (cg-RX-API-DMAC7.html)
JP (1) JPS5153771A (cg-RX-API-DMAC7.html)
DE (1) DE2539934A1 (cg-RX-API-DMAC7.html)
FR (1) FR2284886A1 (cg-RX-API-DMAC7.html)
GB (1) GB1516880A (cg-RX-API-DMAC7.html)
IT (1) IT1044443B (cg-RX-API-DMAC7.html)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4023073A (en) * 1975-12-08 1977-05-10 Graco Inc. Open circuit detector
US4084232A (en) * 1977-02-24 1978-04-11 Honeywell Information Systems Inc. Power confidence system
US4214236A (en) * 1978-10-02 1980-07-22 The Bendix Corporation Driver circuit for an electrical load with capability for detecting a short in the load
DE3446628A1 (de) * 1984-12-20 1986-06-26 Siemens AG, 1000 Berlin und 8000 München Signalisierungsschaltung
US5349994A (en) * 1990-09-28 1994-09-27 Dover Corporation Control system for filling tanks with liquids
TW338585U (en) * 1997-07-15 1998-08-11 Asia Vital Components Co Ltd Improvement on a non-carbon brush DC fan

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3624629A (en) * 1968-10-30 1971-11-30 Charles A Donaldson Warning system for warning of defective headlights, taillights and the like on motor vehicles, aircraft, marine craft and the like
US3790874A (en) * 1972-07-27 1974-02-05 Cleveland Machine Controls Motor drive control system

Also Published As

Publication number Publication date
FR2284886A1 (fr) 1976-04-09
JPS5153771A (cg-RX-API-DMAC7.html) 1976-05-12
FR2284886B3 (cg-RX-API-DMAC7.html) 1979-06-29
US3903430A (en) 1975-09-02
DE2539934A1 (de) 1976-04-01
IT1044443B (it) 1980-03-20

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee