FR2420119A1 - Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distance - Google Patents
Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distanceInfo
- Publication number
- FR2420119A1 FR2420119A1 FR7807758A FR7807758A FR2420119A1 FR 2420119 A1 FR2420119 A1 FR 2420119A1 FR 7807758 A FR7807758 A FR 7807758A FR 7807758 A FR7807758 A FR 7807758A FR 2420119 A1 FR2420119 A1 FR 2420119A1
- Authority
- FR
- France
- Prior art keywords
- distance
- output signal
- oscillator
- proximity sensor
- signal proportional
- 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
- 230000001939 inductive effect Effects 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/023—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring distance between sensor and object
-
- 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
- G01D5/20—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 inductance, e.g. by a movable armature
- G01D5/2006—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 inductance, e.g. by a movable armature by influencing the self-induction of one or more coils
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Abstract
Détecteur de proximité comportant un circuit oscillant parallèle 1, 3 dont l'inductance 1 est influencée par la piece métallique dont on veut repérer la distance, ce circuit oscillant faisant partie d'un oscillateur (transistor 5, circuit de réaction 4, Le montage est caractérisé en ce que l'oscillateur est alimenté à courant constant (générateur 6), que la résistance 4 d'injection du courant dans le circuit oscillant est pratiquement nulle et que le signal de sortie Vosc est prélevé aux bornes de l'oscillateur. Application à la réalisation d'un dispositif utilisant un signal analogique linéaire en fonction de la distance, pour classer des objets ou mesurer leur vitesse d'approche.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7807758A FR2420119A1 (fr) | 1978-03-17 | 1978-03-17 | Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distance |
CH237479A CH630726A5 (fr) | 1978-03-17 | 1979-03-13 | Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distance. |
IT20932/79A IT1111516B (it) | 1978-03-17 | 1979-03-13 | Rivelatore di prossimita' induttivo che fornisce un segnale di uscita proporzionale alla distanza |
DE19792910491 DE2910491A1 (de) | 1978-03-17 | 1979-03-16 | Induktiver naeherungsdetektor, der ein zu der entfernung proportionales ausgangssignal liefert |
US06/022,027 US4267522A (en) | 1978-03-17 | 1979-03-19 | L.C. oscillator proximity detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7807758A FR2420119A1 (fr) | 1978-03-17 | 1978-03-17 | Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distance |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2420119A1 true FR2420119A1 (fr) | 1979-10-12 |
FR2420119B1 FR2420119B1 (fr) | 1982-05-21 |
Family
ID=9205932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7807758A Granted FR2420119A1 (fr) | 1978-03-17 | 1978-03-17 | Detecteur de proximite inductif fournissant un signal de sortie proportionnel a la distance |
Country Status (5)
Country | Link |
---|---|
US (1) | US4267522A (fr) |
CH (1) | CH630726A5 (fr) |
DE (1) | DE2910491A1 (fr) |
FR (1) | FR2420119A1 (fr) |
IT (1) | IT1111516B (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0207650A2 (fr) * | 1985-06-07 | 1987-01-07 | Vari-L Company, Inc. | Oscillateur électronique à large gamme |
FR2657427A1 (fr) * | 1990-01-19 | 1991-07-26 | Telemecanique | Procede pour l'adaptation en fonction de la temperature des conditions d'oscillation d'un circuit oscillant et detecteur de proximite mettant en óoeuvre ledit procede. |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4414541A (en) * | 1981-05-29 | 1983-11-08 | Techne Electronics Limited | Motion sensing system |
FR2518359A1 (fr) * | 1981-12-15 | 1983-06-17 | Telemecanique Electrique | Dispositif generateur d'un signal analogique fonction de la deformation d'une plaque metallique et application a la commande " intuitive " de mouvements |
JPS59141001A (ja) * | 1983-02-01 | 1984-08-13 | Mitsubishi Electric Corp | 金属管の有効端末位置検出方法 |
DE3320509C2 (de) * | 1983-06-07 | 1994-02-17 | Merten Kg Pulsotronic | Elektronischer Näherungsschalter |
DE3412343C2 (de) * | 1984-04-03 | 1993-12-02 | Merten Kg Pulsotronic | Berührungslos wirkendes elektronisches Gerät |
US4618835A (en) * | 1984-11-27 | 1986-10-21 | Maranantha Research Ltd. | Proximity sensor oscillator utilizing controlled charge |
FR2614432B1 (fr) * | 1987-04-23 | 1989-07-28 | Telemecanique Electrique | Detecteur de proximite inductif |
DE4100073A1 (de) * | 1991-01-04 | 1992-07-09 | Thomas H Richter | Vorrichtung zur ueberwachung von spielfeldbegrenzungslinien mittels elektronischer naeherungssensoren sowie eines mit elektronischen messmethoden erfassbaren balles, vornehmlich eines tennisballes |
DE4325406B4 (de) * | 1992-09-02 | 2006-02-23 | Tiefenbach Gmbh | Näherungsschalter |
DE4317359A1 (de) * | 1993-05-25 | 1994-12-01 | Balluff Gebhard Feinmech | Sensor |
US6011477A (en) * | 1997-07-23 | 2000-01-04 | Sensitive Technologies, Llc | Respiration and movement monitoring system |
US5986549A (en) * | 1997-07-23 | 1999-11-16 | Teodorescu; Horia-Nicolai | Position and movement reasonant sensor |
US6462627B1 (en) * | 2000-08-25 | 2002-10-08 | Tropian Inc. | Oscillator circuit having reduced phase noise |
FR2814242B1 (fr) * | 2000-09-19 | 2002-12-20 | France Telecom | Dispositif de mesure ponctuelle d'un champ magnetique radiofrequence d'amplitude et de frequence constantes |
GB2498375B (en) * | 2012-01-12 | 2017-05-31 | Chemring Tech Solutions Ltd | A buried object detector |
US9639225B2 (en) | 2015-09-18 | 2017-05-02 | Motorola Solutions, Inc. | Method and apparatus for detecting a touch on a device |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB967401A (en) * | 1961-05-25 | 1964-08-19 | Brookhirst Igranic Ltd | Proximity responsive device |
GB1011241A (en) * | 1960-12-08 | 1965-11-24 | English Electric Co Ltd | Improvements in or relating to variable-q equipment |
FR1482206A (fr) * | 1966-04-15 | 1967-05-26 | Compteurs Comp D | Perfectionnements aux capteurs de proximité |
NL7213879A (fr) * | 1971-10-13 | 1973-04-17 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3469204A (en) * | 1967-09-14 | 1969-09-23 | Whittaker Corp | Proximity sensitive on-off oscillator switch circuit |
US3732503A (en) * | 1972-02-11 | 1973-05-08 | W Rapp | Proximity switch including variable frequency oscillator with ferrite control element |
-
1978
- 1978-03-17 FR FR7807758A patent/FR2420119A1/fr active Granted
-
1979
- 1979-03-13 IT IT20932/79A patent/IT1111516B/it active
- 1979-03-13 CH CH237479A patent/CH630726A5/fr not_active IP Right Cessation
- 1979-03-16 DE DE19792910491 patent/DE2910491A1/de active Granted
- 1979-03-19 US US06/022,027 patent/US4267522A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1011241A (en) * | 1960-12-08 | 1965-11-24 | English Electric Co Ltd | Improvements in or relating to variable-q equipment |
GB967401A (en) * | 1961-05-25 | 1964-08-19 | Brookhirst Igranic Ltd | Proximity responsive device |
FR1482206A (fr) * | 1966-04-15 | 1967-05-26 | Compteurs Comp D | Perfectionnements aux capteurs de proximité |
NL7213879A (fr) * | 1971-10-13 | 1973-04-17 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0207650A2 (fr) * | 1985-06-07 | 1987-01-07 | Vari-L Company, Inc. | Oscillateur électronique à large gamme |
EP0207650A3 (en) * | 1985-06-07 | 1988-08-03 | Vari-L Company, Inc. | Wide range electronic oscillator |
FR2657427A1 (fr) * | 1990-01-19 | 1991-07-26 | Telemecanique | Procede pour l'adaptation en fonction de la temperature des conditions d'oscillation d'un circuit oscillant et detecteur de proximite mettant en óoeuvre ledit procede. |
Also Published As
Publication number | Publication date |
---|---|
IT7920932A0 (it) | 1979-03-13 |
CH630726A5 (fr) | 1982-06-30 |
FR2420119B1 (fr) | 1982-05-21 |
IT1111516B (it) | 1986-01-13 |
US4267522A (en) | 1981-05-12 |
DE2910491C2 (fr) | 1989-05-18 |
DE2910491A1 (de) | 1979-09-27 |
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