FR2370286B1 - - Google Patents

Info

Publication number
FR2370286B1
FR2370286B1 FR7733564A FR7733564A FR2370286B1 FR 2370286 B1 FR2370286 B1 FR 2370286B1 FR 7733564 A FR7733564 A FR 7733564A FR 7733564 A FR7733564 A FR 7733564A FR 2370286 B1 FR2370286 B1 FR 2370286B1
Authority
FR
France
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
FR7733564A
Other versions
FR2370286A1 (fr
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.)
Girling Ltd
Original Assignee
Girling Ltd
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 Girling Ltd filed Critical Girling Ltd
Publication of FR2370286A1 publication Critical patent/FR2370286A1/fr
Application granted granted Critical
Publication of FR2370286B1 publication Critical patent/FR2370286B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • G01R23/10—Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage by converting frequency into a train of pulses, which are then counted, i.e. converting the signal into a square wave

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Frequencies, Analyzing Spectra (AREA)
  • Regulating Braking Force (AREA)
FR7733564A 1976-11-09 1977-11-08 Systeme de mesure de vitesse Granted FR2370286A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB46490/76A GB1592447A (en) 1976-11-09 1976-11-09 Speed measuring systems

Publications (2)

Publication Number Publication Date
FR2370286A1 FR2370286A1 (fr) 1978-06-02
FR2370286B1 true FR2370286B1 (fr) 1983-11-18

Family

ID=10441478

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7733564A Granted FR2370286A1 (fr) 1976-11-09 1977-11-08 Systeme de mesure de vitesse

Country Status (6)

Country Link
US (1) US4162443A (fr)
JP (1) JPS5360672A (fr)
DE (1) DE2750157A1 (fr)
FR (1) FR2370286A1 (fr)
GB (1) GB1592447A (fr)
HU (1) HU177627B (fr)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4224568A (en) * 1978-05-08 1980-09-23 Wagner Electric Corporation Frequency to digital converter
DE2949131A1 (de) * 1979-12-06 1981-06-11 Deuta-Werke Vorm. Deutsche Tachometerwerke Gmbh, 5070 Bergisch Gladbach Verfahren zum messen der geschwindigkeit von schienenfahrzeugen und vorrichtung zur durchfuehrung des verfahrens
JPS5759171A (en) * 1980-09-27 1982-04-09 Toyota Motor Corp Detection of rotating speed of rotating member in vehicle
CA1145399A (fr) * 1980-10-28 1983-04-26 Hendrik M. Wondergem Frequencemetre
US4392749A (en) * 1981-07-10 1983-07-12 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Instrument for determining coincidence and elapse time between independent sources of random sequential events
DE3213801A1 (de) * 1982-04-15 1983-10-27 Alfred Teves Gmbh, 6000 Frankfurt Verfahren und vorrichtung zur erzeugung von zahlenwerten, die der frequenz der messimpulse einer messimpulsfolge proportional sind
JPS5913957A (ja) * 1982-07-15 1984-01-24 Fanuc Ltd 速度検出回路
US4786861A (en) * 1987-09-01 1988-11-22 Sundstrand Data Control, Inc. Frequency counting apparatus and method
US5095452A (en) * 1988-05-30 1992-03-10 Nippondenso Co., Ltd. Device for accurately displaying physical measure by adjusting the outputs from pulse counters
DE3917511C1 (en) * 1989-05-30 1990-08-02 Rohde & Schwarz Gmbh & Co Kg, 8000 Muenchen, De Wobbulator frequency value determining device - uses interpolation counter to restart at each frequency marker and processor to determine wanted frequency
US4977525A (en) * 1989-05-30 1990-12-11 Delco Electronics Corporation Highly efficient method and apparatus for calculating rotational speed
US5237521A (en) * 1990-08-20 1993-08-17 Xerox Corporation High resolution position measurement system
US5097490A (en) * 1991-01-14 1992-03-17 Sundstrand Data Control, Inc. Apparatus and method for improving the resolution with which a test signal is counted
IT1245510B (it) * 1991-02-15 1994-09-29 Marelli Autronica Dispositivo di conteggio e memorizzazione del numero di impulsi di un segnale in un intervallo di tempo
EP0570608A1 (fr) * 1992-05-19 1993-11-24 Siemens Aktiengesellschaft Procédé et dispositif de comptage d'impulsions numériques
US6327223B1 (en) 1996-06-14 2001-12-04 Brian P. Elfman Subnanosecond timekeeper system
GB2345372B (en) * 1998-12-30 2003-04-16 Mars Inc Method and apparatus for validating coins
DE19959679A1 (de) * 1999-12-10 2001-06-21 Bosch Gmbh Robert Verfahren und Vorrichtung zur Unterdrückung von Drehzahlschwankungen
US7328122B2 (en) * 2005-11-18 2008-02-05 Hamilton Sundstrand Corporation Speed sensor
US7756651B2 (en) * 2006-05-05 2010-07-13 Elster Electricity, Llc Fractional sampling of electrical energy
DE102006026921A1 (de) * 2006-06-09 2007-12-20 Siemens Ag Verfahren zur Erfassung der Fahrgeschwindigkeit eines Kraftfahrzeuges und Einrichtung zur Durchführung des Verfahrens
US20090287428A1 (en) * 2008-05-13 2009-11-19 Elster Electricity, Llc Fractional samples to improve metering and instrumentation
JP2010197238A (ja) * 2009-02-25 2010-09-09 Sumitomo Rubber Ind Ltd 回転速度情報検出装置、方法及びプログラム、並びに、タイヤ空気圧低下検出装置、方法及びプログラム
EP2369438B1 (fr) * 2010-02-24 2014-02-26 Fujitsu Semiconductor Limited Méthode d'étalonnage d'un signal d'horloge temps réel
DE102010046880A1 (de) * 2010-09-29 2012-03-29 Phoenix Contact Gmbh & Co. Kg Verfahren und Anordnung zur Frequenzbestimmung
WO2014098863A1 (fr) 2012-12-20 2014-06-26 Schneider Electric It Corporation Procédé et appareil de détermination de caractéristiques d'un signal d'entrée
US9797268B2 (en) * 2015-03-27 2017-10-24 United Technologies Corporation Oil scoop with integrated sensor
US11237195B2 (en) * 2017-06-26 2022-02-01 Intel Corporation Frequency estimation

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2665411A (en) * 1951-03-15 1954-01-05 Hughes Tool Co Double interpolation method and apparatus for measuring time intervals
US2992384A (en) * 1959-07-06 1961-07-11 Thompson Ramo Wooldridge Inc Frequency counter
US3218553A (en) * 1961-05-29 1965-11-16 Motorola Inc Time interval measuring system employing vernier digital means and coarse count ambiguity resolver
US3611134A (en) * 1969-04-30 1971-10-05 Ibm Apparatus for automatically measuring time intervals using multiple interpolations of any fractional time interval
JPS5325265B1 (fr) * 1971-06-15 1978-07-26
DE2220878C3 (de) * 1972-04-28 1982-04-22 Philips Patentverwaltung Gmbh, 2000 Hamburg Schaltungsanordnung zur digitalen Frequenzmessung
JPS526189B2 (fr) * 1972-08-23 1977-02-19

Also Published As

Publication number Publication date
FR2370286A1 (fr) 1978-06-02
US4162443A (en) 1979-07-24
HU177627B (en) 1981-11-28
DE2750157A1 (de) 1978-05-24
JPS5360672A (en) 1978-05-31
GB1592447A (en) 1981-07-08

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Legal Events

Date Code Title Description
ST Notification of lapse