[go: up one dir, main page]

GB1219757A - Protection circuits including transducers especially for counting arrangements - Google Patents

Protection circuits including transducers especially for counting arrangements

Info

Publication number
GB1219757A
GB1219757A GB45751/67A GB4575167A GB1219757A GB 1219757 A GB1219757 A GB 1219757A GB 45751/67 A GB45751/67 A GB 45751/67A GB 4575167 A GB4575167 A GB 4575167A GB 1219757 A GB1219757 A GB 1219757A
Authority
GB
United Kingdom
Prior art keywords
signals
transducer
oct
representative
circuits including
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
GB45751/67A
Inventor
Robin Clarke
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.)
DAVEY AND UNITED ENGINEERING C
Original Assignee
DAVEY AND UNITED ENGINEERING C
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 DAVEY AND UNITED ENGINEERING C filed Critical DAVEY AND UNITED ENGINEERING C
Priority to GB45751/67A priority Critical patent/GB1219757A/en
Publication of GB1219757A publication Critical patent/GB1219757A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
    • G01D5/244—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
    • G01D5/24457—Failure detection
    • G01D5/24461—Failure detection by redundancy or plausibility
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M1/00—Analogue/digital conversion; Digital/analogue conversion
    • H03M1/12—Analogue/digital converters
    • H03M1/124—Sampling or signal conditioning arrangements specially adapted for A/D converters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1,219,757. Protective systems. DAVY & UNITED ENG. CO. Ltd. 23 Oct., 1968 [6 Oct., 1967], No. 45751/67. Heading H2K. [Also in Division G4] A protective circuit for an arrangement including a transducer (not shown) producing at least three periodically varying signals mutually displaced substantially equally in phase and of a phase rotation dependent on the direction of variation of a physical variable, comprises two coincidence circuits 21, 22, one receiving signals A . . . C representative of the transducer signals and the other receiving signals #A... #C representative of the transducer signals when inverted, a bi-stable element 24 connected to the circuits 21, 22 and an alarm connected to the element 24. In the event of a fault causing unequal displacement of the signals, the resulting coincidence of the signals causes circuit 21 or 22 to produce an output to trigger the element 24 to operate the alarm.
GB45751/67A 1967-10-06 1967-10-06 Protection circuits including transducers especially for counting arrangements Expired GB1219757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB45751/67A GB1219757A (en) 1967-10-06 1967-10-06 Protection circuits including transducers especially for counting arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB45751/67A GB1219757A (en) 1967-10-06 1967-10-06 Protection circuits including transducers especially for counting arrangements

Publications (1)

Publication Number Publication Date
GB1219757A true GB1219757A (en) 1971-01-20

Family

ID=10438431

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45751/67A Expired GB1219757A (en) 1967-10-06 1967-10-06 Protection circuits including transducers especially for counting arrangements

Country Status (1)

Country Link
GB (1) GB1219757A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033902A2 (en) * 1980-02-12 1981-08-19 BROWN, BOVERI & CIE Aktiengesellschaft Mannheim Method for the surveillance of pulse trains
FR2509853A1 (en) * 1981-07-15 1983-01-21 British Petroleum Co Fault monitor for fluid flowmeter - produces pulses from rising and falling edges of two pulse trains produced from respective detectors of motion of cog wheel
EP0251341A1 (en) * 1984-04-14 1988-01-07 Fanuc Ltd. Circuit means for evaluating the movement of a code track of incremental type
WO2010150416A1 (en) 2009-06-26 2010-12-29 Mitsubishi Electric Corporation Rotary speed detection device with error monitoring
US11369748B2 (en) 2017-12-04 2022-06-28 Novo Nordisk A/S Drug injection device with deflectable transducers

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0033902A2 (en) * 1980-02-12 1981-08-19 BROWN, BOVERI & CIE Aktiengesellschaft Mannheim Method for the surveillance of pulse trains
EP0033902A3 (en) * 1980-02-12 1982-07-14 BROWN, BOVERI & CIE Aktiengesellschaft Mannheim Method for the surveillance of pulse trains
FR2509853A1 (en) * 1981-07-15 1983-01-21 British Petroleum Co Fault monitor for fluid flowmeter - produces pulses from rising and falling edges of two pulse trains produced from respective detectors of motion of cog wheel
EP0251341A1 (en) * 1984-04-14 1988-01-07 Fanuc Ltd. Circuit means for evaluating the movement of a code track of incremental type
US4796005A (en) * 1984-04-14 1989-01-03 Fanuc Ltd. Circuit device for a positional encoder
WO2010150416A1 (en) 2009-06-26 2010-12-29 Mitsubishi Electric Corporation Rotary speed detection device with error monitoring
WO2010150596A1 (en) * 2009-06-26 2010-12-29 Mitsubishi Electric Corporation Sensing device
CN102803971A (en) * 2009-06-26 2012-11-28 三菱电机株式会社 Rotary speed detection device with error monitoring
CN102803971B (en) * 2009-06-26 2015-12-02 三菱电机株式会社 There is the rotational speed checkout equipment of error monitoring function
US11369748B2 (en) 2017-12-04 2022-06-28 Novo Nordisk A/S Drug injection device with deflectable transducers

Similar Documents

Publication Publication Date Title
ES460008A1 (en) Alarm system for detecting changes in load on terrain
GB1219757A (en) Protection circuits including transducers especially for counting arrangements
GB1295189A (en)
GB1064786A (en) Improvements in or relating to automatic positioning systems
IE43734L (en) Transition indicator for two-level signal
GB1141252A (en) Protective goggles
JPS5585156A (en) Protective unit of transmission system
JPS52151067A (en) Alarm watch
ES8402127A1 (en) Electronic pressure responsive switch
SU528689A1 (en) Trigger trigger
JPS52135475A (en) Press safety device
JPS53115272A (en) Alarm watch
JPS5347722A (en) Key input circuit
SU637844A1 (en) Remote indication device
JPS5323257A (en) Phase difference detection circuit
GB1299631A (en) Magnetic mine sensing system
JPS5374900A (en) Ultrasonic alarm
JPS5374899A (en) Ultrasonic alarm
JPS5390708A (en) Transmitting system for synchronous signal
JPS541651A (en) Region alarming device
JPS5367096A (en) Supervisory display system
FREEDMAN Self-reconfiguring computer complexes for A. T. C. Systems
Linton Achieving the state's environmental goals through a coastal management program.
JPS5361257A (en) Fm signal demodulator
JPS52141144A (en) Data input unit