GB1526643A - Digital frequency measuring circuitry - Google Patents

Digital frequency measuring circuitry

Info

Publication number
GB1526643A
GB1526643A GB19945/77A GB1994577A GB1526643A GB 1526643 A GB1526643 A GB 1526643A GB 19945/77 A GB19945/77 A GB 19945/77A GB 1994577 A GB1994577 A GB 1994577A GB 1526643 A GB1526643 A GB 1526643A
Authority
GB
United Kingdom
Prior art keywords
digital
contents
digital frequency
frequency measuring
measuring circuitry
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
GB19945/77A
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.)
Motors Liquidation Co
Original Assignee
General Motors Corp
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 General Motors Corp filed Critical General Motors Corp
Publication of GB1526643A publication Critical patent/GB1526643A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • 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
    • G01P3/489—Digital circuits therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R23/00—Arrangements for measuring frequencies; Arrangements for analysing frequency spectra
    • G01R23/02—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage
    • G01R23/06—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage
    • G01R23/09—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into an amplitude of current or voltage using analogue integrators, e.g. capacitors establishing a mean value by balance of input signals and defined discharge signals or leakage
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R7/00—Instruments capable of converting two or more currents or voltages into a single mechanical displacement
    • G01R7/04—Instruments capable of converting two or more currents or voltages into a single mechanical displacement for forming a quotient
    • G01R7/06—Instruments capable of converting two or more currents or voltages into a single mechanical displacement for forming a quotient moving-iron type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Motor And Converter Starters (AREA)
GB19945/77A 1976-05-28 1977-05-12 Digital frequency measuring circuitry Expired GB1526643A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/690,848 US4051434A (en) 1976-05-28 1976-05-28 Digital frequency measuring circuitry

Publications (1)

Publication Number Publication Date
GB1526643A true GB1526643A (en) 1978-09-27

Family

ID=24774211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB19945/77A Expired GB1526643A (en) 1976-05-28 1977-05-12 Digital frequency measuring circuitry

Country Status (5)

Country Link
US (1) US4051434A (enExample)
JP (1) JPS52146672A (enExample)
CA (1) CA1104724A (enExample)
GB (1) GB1526643A (enExample)
IT (1) IT1078276B (enExample)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4230984A (en) * 1979-03-22 1980-10-28 General Motors Corporation Method and apparatus for driving an air core gage
DE2933335A1 (de) * 1979-08-17 1981-03-26 Wabco Westinghouse Fahrzeugbremsen GmbH, 30453 Hannover Schaltungsanordnung zur umwandlung der frequenz von analogen wechselspannungen eines drehgebers in geschhwindigkeitswerte binaerer darstellung
US4310800A (en) * 1979-11-07 1982-01-12 General Motors Corporation Digital frequency measuring circuitry
DE3434189A1 (de) * 1984-09-18 1986-03-20 Vdo Adolf Schindling Ag, 6000 Frankfurt Einrichtung zur ansteuerung eines kreuzspulanzeigeinstruments
US4672643A (en) * 1986-05-02 1987-06-09 General Motors Corporation Serial pulse frequency converter
US4953095A (en) * 1986-09-30 1990-08-28 Nissan Motor Co., Ltd. Apparatus and method for measuring the frequency of a pulse signal
GB8630086D0 (en) * 1986-12-17 1987-01-28 Lucas Elect Electron Syst Gauge driving system
US4786861A (en) * 1987-09-01 1988-11-22 Sundstrand Data Control, Inc. Frequency counting apparatus and method
JPH0660908B2 (ja) * 1988-01-22 1994-08-10 矢崎総業株式会社 クロスコイル形計器の駆動装置
US5214597A (en) * 1988-11-09 1993-05-25 Yazaki Corporation Cross coil type indicator
US5119320A (en) * 1988-11-09 1992-06-02 Yazaki Corporation Cross coil type indicator
US4991098A (en) * 1988-11-25 1991-02-05 General Motors Corporation Computer-based controller and bipolar PWM driver arrangement for air core gauge control
EP0379816B1 (fr) * 1988-12-19 1993-03-31 Jaeger Dispositif perfectionné de commande de logomètre
US5063344A (en) * 1990-03-05 1991-11-05 Delco Electronics Corporation Mode selectable interface circuit for an air core gage controller
US6073087A (en) * 1996-11-20 2000-06-06 Philips Electronics North America Corporation Digital tachometer
JP2009250807A (ja) * 2008-04-07 2009-10-29 Seiko Epson Corp 周波数測定装置及び測定方法
JP2010271091A (ja) 2009-05-20 2010-12-02 Seiko Epson Corp 周波数測定装置
JP5440999B2 (ja) 2009-05-22 2014-03-12 セイコーエプソン株式会社 周波数測定装置
JP5517033B2 (ja) 2009-05-22 2014-06-11 セイコーエプソン株式会社 周波数測定装置
JP5582447B2 (ja) 2009-08-27 2014-09-03 セイコーエプソン株式会社 電気回路、同電気回路を備えたセンサーシステム、及び同電気回路を備えたセンサーデバイス
JP5815918B2 (ja) 2009-10-06 2015-11-17 セイコーエプソン株式会社 周波数測定方法、周波数測定装置及び周波数測定装置を備えた装置
JP5876975B2 (ja) 2009-10-08 2016-03-02 セイコーエプソン株式会社 周波数測定装置及び周波数測定装置における変速分周信号の生成方法
JP5883558B2 (ja) 2010-08-31 2016-03-15 セイコーエプソン株式会社 周波数測定装置及び電子機器
CN116520020A (zh) * 2023-03-30 2023-08-01 成都市运泰利自动化设备有限公司 一种基于fpga的自适应频率测量装置及测试方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3530382A (en) * 1969-02-27 1970-09-22 Federal Sign And Signal Corp System for speed indication utilizing digital distance and digital time measuring apparatus
GB1470383A (en) * 1973-04-03 1977-04-14 Lucas Electrical Ltd Apparatus for producing signals indicating increments of angular movement of a body
DE2336015C2 (de) * 1973-07-14 1983-10-06 Robert Bosch Gmbh, 7000 Stuttgart Schaltungsanordnung zur Umsetzung einer Frequenz in eine Binärzahl

Also Published As

Publication number Publication date
JPS5728914B2 (enExample) 1982-06-19
US4051434A (en) 1977-09-27
JPS52146672A (en) 1977-12-06
IT1078276B (it) 1985-05-08
CA1104724A (en) 1981-07-07

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19970511