IT1216628B - Circuito di trattamento di un segnale pseudo oscillatorio, in particolare per rilevatori di prossimita' induttivo. - Google Patents
Circuito di trattamento di un segnale pseudo oscillatorio, in particolare per rilevatori di prossimita' induttivo.Info
- Publication number
- IT1216628B IT1216628B IT8820314A IT2031488A IT1216628B IT 1216628 B IT1216628 B IT 1216628B IT 8820314 A IT8820314 A IT 8820314A IT 2031488 A IT2031488 A IT 2031488A IT 1216628 B IT1216628 B IT 1216628B
- Authority
- IT
- Italy
- Prior art keywords
- pseudo
- treatment circuit
- inductive proximity
- oscillatory signal
- proximity detectors
- Prior art date
Links
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
- G01D5/243—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 phase or frequency of ac
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2611—Measuring inductance
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/94—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the way in which the control signals are generated
- H03K17/945—Proximity switches
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/952—Proximity switches using a magnetic detector using inductive coils
- H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electronic Switches (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8705960A FR2614431B1 (fr) | 1987-04-23 | 1987-04-23 | Circuit de traitement d'un signal pseudo-oscillatoire, notamment pour detecteur de proximite inductif |
Publications (2)
Publication Number | Publication Date |
---|---|
IT8820314A0 IT8820314A0 (it) | 1988-04-22 |
IT1216628B true IT1216628B (it) | 1990-03-08 |
Family
ID=9350534
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT8820314A IT1216628B (it) | 1987-04-23 | 1988-04-22 | Circuito di trattamento di un segnale pseudo oscillatorio, in particolare per rilevatori di prossimita' induttivo. |
Country Status (7)
Country | Link |
---|---|
US (1) | US4879512A (it) |
JP (1) | JPS6429014A (it) |
CH (1) | CH675490A5 (it) |
DE (1) | DE3813732A1 (it) |
FR (1) | FR2614431B1 (it) |
GB (1) | GB2204134B (it) |
IT (1) | IT1216628B (it) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5198764A (en) * | 1991-02-22 | 1993-03-30 | Sentech Corp. | Position detector apparatus and method utilizing a transient voltage waveform processor |
GB9111282D0 (en) * | 1991-05-24 | 1991-07-17 | Grau Ltd | Inductive sensor |
US5180978A (en) * | 1991-12-02 | 1993-01-19 | Honeywell Inc. | Proximity sensor with reduced temperature sensitivity using A.C. and D.C. energy |
FR2725036A1 (fr) * | 1994-09-22 | 1996-03-29 | Oyo Corp | Emetteur pour systeme de mesure de tomographie electromagnetique et procede de mise en oeuvre |
US5801530A (en) * | 1995-04-17 | 1998-09-01 | Namco Controls Corporation | Proximity sensor having a non-ferrous metal shield for enhanced sensing range |
FR2738643B1 (fr) * | 1995-09-08 | 1997-12-26 | Schneider Electric Sa | Detecteur de proximite inductif universel |
DE19642699A1 (de) * | 1996-10-16 | 1998-04-30 | Saia Burgess Electronics Gmbh | Verfahren und Vorrichtung zur berührungslosen Abstandsmessung |
EP1138118B1 (de) * | 1998-12-08 | 2010-04-28 | Baumer Innotec AG | Verfahren und vorrichtung zur messung der dämpfung eines lc-schwingungskreises |
US6215365B1 (en) | 1999-06-04 | 2001-04-10 | Pepperl + Fuchs | Inductive proximity sensor oscillator |
GB2365130B (en) * | 2000-07-20 | 2005-01-19 | Honeywell Control Syst | Improved proximity sensor and related methods |
JP4889849B2 (ja) * | 2000-09-27 | 2012-03-07 | オンセミコンダクター・トレーディング・リミテッド | 正弦波発生回路 |
CA2445444C (en) | 2001-04-26 | 2006-10-24 | Litens Automotive | Powered liftgate opening mechanism and control system |
US7070226B2 (en) | 2001-04-26 | 2006-07-04 | Litens Automotive | Powered opening mechanism and control system |
PT1580889E (pt) * | 2004-03-26 | 2008-03-17 | Senstronic S A | Sensor de proximidade indutivo |
US9599448B2 (en) * | 2007-11-29 | 2017-03-21 | Rockwell Automation Technologies, Inc. | Apparatus and methods for proximity sensing circuitry |
DE102014213741A1 (de) * | 2014-07-15 | 2016-02-18 | Micro-Epsilon Messtechnik Gmbh & Co. Kg | Schaltung und Verfahren zum Ansteuern eines Wegmesssensors |
JP6965658B2 (ja) * | 2017-09-25 | 2021-11-10 | オムロン株式会社 | 近接センサ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4001718A (en) * | 1975-05-12 | 1977-01-04 | Electro Corporation | Linear oscillator for proximity sensor |
DE2833141C2 (de) * | 1978-07-28 | 1987-02-12 | Robert Bosch Gmbh, 7000 Stuttgart | Schaltungsanordnung zum Vergleich einer ersten und einer zweiten Induktivität |
DE2942134A1 (de) * | 1979-10-18 | 1981-04-30 | Robert Bosch Gmbh, 7000 Stuttgart | Auswerteschaltung fuer einen induktivgeber |
DE2942953A1 (de) * | 1979-10-24 | 1981-05-21 | Robert Bosch Gmbh, 7000 Stuttgart | Schaltungsanordnung zur induktivitaetsmessung |
US4446427A (en) * | 1981-03-23 | 1984-05-01 | Lovrenich Rodger T | Measuring and control device using the damping effect of a resistive effect element on the inductor of a tuned circuit |
DE3117808A1 (de) * | 1981-05-06 | 1982-11-25 | Robert Bosch Gmbh, 7000 Stuttgart | Schaltungsanordnung zur messung von induktivitaetsaenderungen |
EP0126846B1 (de) * | 1983-04-21 | 1990-08-01 | WABCO Westinghouse Fahrzeugbremsen GmbH | Induktiver Sensor |
FR2561001B1 (fr) * | 1984-03-09 | 1986-10-31 | Petercem Sa | Capteur de la position relative d'une cible par rapport a une cible de reference |
DE3440538C1 (de) * | 1984-11-07 | 1986-05-15 | Werner Turck Gmbh & Co Kg, 5884 Halver | Annäherungsschalter |
FR2604251B1 (fr) * | 1986-09-19 | 1990-11-16 | Telemecanique Electrique | Detecteur inductif de proximite muni d'un circuit oscillant a relaxation |
-
1987
- 1987-04-23 FR FR8705960A patent/FR2614431B1/fr not_active Expired
-
1988
- 1988-04-20 GB GB8809326A patent/GB2204134B/en not_active Expired - Lifetime
- 1988-04-21 CH CH1473/88A patent/CH675490A5/fr not_active IP Right Cessation
- 1988-04-22 IT IT8820314A patent/IT1216628B/it active
- 1988-04-22 US US07/184,852 patent/US4879512A/en not_active Expired - Fee Related
- 1988-04-22 DE DE3813732A patent/DE3813732A1/de active Granted
- 1988-04-22 JP JP63101202A patent/JPS6429014A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB2204134B (en) | 1991-03-27 |
GB8809326D0 (en) | 1988-05-25 |
JPS6429014A (en) | 1989-01-31 |
CH675490A5 (it) | 1990-09-28 |
IT8820314A0 (it) | 1988-04-22 |
FR2614431A1 (fr) | 1988-10-28 |
FR2614431B1 (fr) | 1989-06-16 |
DE3813732A1 (de) | 1988-11-17 |
US4879512A (en) | 1989-11-07 |
GB2204134A (en) | 1988-11-02 |
DE3813732C2 (it) | 1991-06-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TA | Fee payment date (situation as of event date), data collected since 19931001 |
Effective date: 19990430 |