FR2424513A1 - DEVICE FOR MEASURING THE QUANTITY OF MOVEMENT OF A MOBILE OBJECT - Google Patents
DEVICE FOR MEASURING THE QUANTITY OF MOVEMENT OF A MOBILE OBJECTInfo
- Publication number
- FR2424513A1 FR2424513A1 FR7910474A FR7910474A FR2424513A1 FR 2424513 A1 FR2424513 A1 FR 2424513A1 FR 7910474 A FR7910474 A FR 7910474A FR 7910474 A FR7910474 A FR 7910474A FR 2424513 A1 FR2424513 A1 FR 2424513A1
- Authority
- FR
- France
- Prior art keywords
- mobile object
- measuring
- movement
- capacitors
- fixed elements
- 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.)
- Granted
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
- G01D5/14—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 the magnitude of a current or voltage
- G01D5/24—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 the magnitude of a current or voltage by varying capacitance
- G01D5/241—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 the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
- G01D5/2417—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 the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes by varying separation
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
L'INVENTION CONCERNE UN DISPOSITIF POUR MESURER UNE QUANTITE DE MOUVEMENT D'UN OBJET MOBILE. LE DISPOSITIF EST CARACTERISE EN CE QU'IL COMPREND UN DETECTEUR CONSTITUE PAR L'OBJET MOBILE ET PAR DEUX ELEMENTS FIXES PLACES EN REGARD DE L'OBJET MOBILE DE FACON A FORMER AU MOINS DEUX CONDENSATEURS DIFFERENTIELS, LES SURFACES CORRESPONDANTES DE L'OBJET MOBILE ET DES ELEMENTS FIXES PORTANT DES GRADUATIONS DE MEME PAS, LESDITS CONDENSATEURS COOPERANT AVEC DEUX OSCILLATEURS ET UN MELANGEUR POUR PRODUIRE UN SIGNAL DONT LA FREQUENCE EST ALTERNATIVEMENT AUGMENTEE ET DIMINUEE A CHAQUE FOIS QUE L'OBJET MOBILE SE DEPLACE D'UNE DISTANCE PREDETERMINEE PAR RAPPORT AUX ELEMENTS FIXES. APPLICATION A LA MESURE DE MOUVEMENTS.THE INVENTION RELATES TO A DEVICE FOR MEASURING A QUANTITY OF MOVEMENT OF A MOBILE OBJECT. THE DEVICE IS CHARACTERIZED IN THAT IT INCLUDES A DETECTOR CONSTITUTED BY THE MOBILE OBJECT AND BY TWO FIXED ELEMENTS PLACED FACING THE MOBILE OBJECT SO AS TO FORM AT LEAST TWO DIFFERENTIAL CAPACITORS, THE CORRESPONDING SURFACES OF THE MOBILE OBJECT FIXED ELEMENTS BEARING THE SAME STEADS, THE SAID CAPACITORS COOPERATING WITH TWO OSCILLATORS AND A MIXER TO PRODUCE A SIGNAL THE FREQUENCY OF WHICH IS ALTERNATIVELY INCREASED AND DECREASED EACH TIME THE MOBILE OBJECT MOVES IN RELATION TO THE ELEMENT OF A DISTANCE FIXED. APPLICATION TO THE MEASUREMENT OF MOVEMENTS.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4960578A JPS54141657A (en) | 1978-04-26 | 1978-04-26 | Device for measuring displacement of moving body |
JP14983678A JPS5575613A (en) | 1978-12-04 | 1978-12-04 | Measuring unit for amount of revolution for rotatory motion body |
JP14983778A JPS5575614A (en) | 1978-12-04 | 1978-12-04 | Amount of movement measuring unit for straight movement mobile body |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2424513A1 true FR2424513A1 (en) | 1979-11-23 |
FR2424513B1 FR2424513B1 (en) | 1984-03-16 |
Family
ID=27293687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7910474A Granted FR2424513A1 (en) | 1978-04-26 | 1979-04-25 | DEVICE FOR MEASURING THE QUANTITY OF MOVEMENT OF A MOBILE OBJECT |
Country Status (4)
Country | Link |
---|---|
CH (1) | CH630461A5 (en) |
DE (2) | DE2916760C2 (en) |
FR (1) | FR2424513A1 (en) |
GB (1) | GB2020815B (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2070774A (en) * | 1980-02-28 | 1981-09-09 | Pa Management Consult | Capactive clinometer |
JPS5759101A (en) * | 1980-09-26 | 1982-04-09 | Hiromi Ogasawara | Noncontacting infinitesimal displacement gauge |
GB2223589B (en) * | 1988-09-14 | 1991-07-24 | Valk Rob V D | Measurement of capacitance and parameters related thereto |
DE19715078A1 (en) * | 1997-04-11 | 1998-10-15 | Univ Ilmenau Tech | Capacitive displacement and angle measuring method |
GB9815826D0 (en) | 1998-07-22 | 1998-09-16 | British Aerospace | Capacitive position transducer |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH452909A (en) * | 1966-05-10 | 1968-03-15 | Ct D Etudes Et De Rech S De La | Device for measuring displacement and for locating the position of a movable member relative to a fixed member |
GB1128774A (en) * | 1964-09-28 | 1968-10-02 | Ibm | An accelerometer |
GB1357250A (en) * | 1971-03-10 | 1974-06-19 | Dubied & Cie Sa E | Position detection arrangements of knitting machines |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1248962B (en) * | 1967-08-31 | Sogemque (Electronics) Limited Newport Pagnell Buckinghamshire (Großbritannien) | Capacitive transmitter | |
DE1091346B (en) * | 1958-10-22 | 1960-10-20 | Licentia Gmbh | Device for measuring the radial and axial play on rotating machines by means of a capacitive encoder |
US3221251A (en) | 1961-06-15 | 1965-11-30 | Electronic Specialty Company | Phase measuring at microwave frequencies with a closed loop servo system using travelling wave tubes |
-
1979
- 1979-04-18 GB GB7913445A patent/GB2020815B/en not_active Expired
- 1979-04-24 CH CH383079A patent/CH630461A5/en not_active IP Right Cessation
- 1979-04-25 FR FR7910474A patent/FR2424513A1/en active Granted
- 1979-04-25 DE DE19792916760 patent/DE2916760C2/en not_active Expired
- 1979-04-25 DE DE19792954266 patent/DE2954266C2/de not_active Expired
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1128774A (en) * | 1964-09-28 | 1968-10-02 | Ibm | An accelerometer |
CH452909A (en) * | 1966-05-10 | 1968-03-15 | Ct D Etudes Et De Rech S De La | Device for measuring displacement and for locating the position of a movable member relative to a fixed member |
GB1357250A (en) * | 1971-03-10 | 1974-06-19 | Dubied & Cie Sa E | Position detection arrangements of knitting machines |
Also Published As
Publication number | Publication date |
---|---|
DE2916760A1 (en) | 1979-10-31 |
GB2020815A (en) | 1979-11-21 |
GB2020815B (en) | 1983-02-09 |
DE2954266C2 (en) | 1988-09-08 |
CH630461A5 (en) | 1982-06-15 |
FR2424513B1 (en) | 1984-03-16 |
DE2916760C2 (en) | 1984-05-03 |
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