DE60029113D1 - Störfeldfestes näherungssensorsystem mit einer impedanzauswertung durch nachführen einer resonanzfrequenz - Google Patents
Störfeldfestes näherungssensorsystem mit einer impedanzauswertung durch nachführen einer resonanzfrequenzInfo
- Publication number
- DE60029113D1 DE60029113D1 DE60029113T DE60029113T DE60029113D1 DE 60029113 D1 DE60029113 D1 DE 60029113D1 DE 60029113 T DE60029113 T DE 60029113T DE 60029113 T DE60029113 T DE 60029113T DE 60029113 D1 DE60029113 D1 DE 60029113D1
- Authority
- DE
- Germany
- Prior art keywords
- sensor
- oscillator
- replacing
- local oscillator
- resonance frequency
- 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 - Fee Related
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
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/06—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups with provision for operation by a null method
-
- 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
- G01B7/003—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring position, not involving coordinate determination
-
- 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
-
- 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
- H03K17/9502—Measures for increasing reliability
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Geophysics And Detection Of Objects (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US40714899A | 1999-09-30 | 1999-09-30 | |
US407148 | 1999-09-30 | ||
PCT/US2000/026986 WO2001024366A1 (en) | 1999-09-30 | 2000-09-29 | An interference-tolerant proximity sensor system having a resonance-tracking impedance analyzer |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60029113D1 true DE60029113D1 (de) | 2006-08-10 |
DE60029113T2 DE60029113T2 (de) | 2006-12-07 |
Family
ID=23610825
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60029113T Expired - Fee Related DE60029113T2 (de) | 1999-09-30 | 2000-09-29 | Störfeldfestes näherungssensorsystem mit einer impedanzauswertung durch nachführen einer resonanzfrequenz |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1216505B1 (de) |
AT (1) | ATE332036T1 (de) |
DE (1) | DE60029113T2 (de) |
WO (1) | WO2001024366A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2796388C1 (ru) * | 2022-08-12 | 2023-05-22 | Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук | Способ определения длины металлической трубы |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7031886B1 (en) * | 2004-12-14 | 2006-04-18 | Synaptics Incorporated | Methods and systems for detecting noise in a position sensor using minor shifts in sensing frequency |
DE102009028619B4 (de) * | 2008-08-25 | 2011-12-22 | Ifm Electronic Gmbh | Induktiver Näherungsschalter mit selbstschwingendem Gegentaktmischer |
US8352202B2 (en) | 2009-06-23 | 2013-01-08 | Synaptics Incorporated | System and method for detecting interfernce in a sensor device using phase shifting |
US10223895B2 (en) | 2010-04-07 | 2019-03-05 | Clean Hands Safe Hands Llc | Systems for monitoring hand sanitization |
WO2011127276A2 (en) * | 2010-04-07 | 2011-10-13 | Emory University | Systems for monitoring hand sanitization |
US10540881B2 (en) | 2010-04-07 | 2020-01-21 | Clean Hands Safe Hands Llc | Systems and methods for pattern recognition and individual detection |
US10467884B2 (en) | 2010-04-07 | 2019-11-05 | Clean Hands Safe Hands Llc | Systems for monitoring hand sanitization |
WO2014205283A1 (en) | 2013-06-19 | 2014-12-24 | Clean Hands Safe Hands | System and methods for wireless hand hygiene monitoring |
DE102015215331A1 (de) * | 2015-08-11 | 2017-02-16 | Continental Teves Ag & Co. Ohg | Elektronische Steuerungseinheit |
DE102015215330A1 (de) * | 2015-08-11 | 2017-02-16 | Continental Teves Ag & Co. Ohg | Induktive Sensoren mit Betriebsfrequenz nahe der Resonanz |
DE102016202402A1 (de) | 2016-02-17 | 2017-08-17 | Continental Teves Ag & Co. Ohg | Sensor |
DE102016202403A1 (de) | 2016-02-17 | 2017-08-17 | Continental Teves Ag & Co. Ohg | Sensor |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4130792A (en) * | 1977-09-30 | 1978-12-19 | Sullivan John W | Metal detector with feedback tuning |
US5041856A (en) * | 1988-12-27 | 1991-08-20 | United Technologies Corporation | In-line metallic debris particle detection probe and resonant evaluation system utilizing the same |
US5854553A (en) * | 1996-06-19 | 1998-12-29 | Skf Condition Monitoring | Digitally linearizing eddy current probe |
-
2000
- 2000-09-29 AT AT00967181T patent/ATE332036T1/de not_active IP Right Cessation
- 2000-09-29 EP EP00967181A patent/EP1216505B1/de not_active Expired - Lifetime
- 2000-09-29 WO PCT/US2000/026986 patent/WO2001024366A1/en active Search and Examination
- 2000-09-29 DE DE60029113T patent/DE60029113T2/de not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2796388C1 (ru) * | 2022-08-12 | 2023-05-22 | Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук | Способ определения длины металлической трубы |
Also Published As
Publication number | Publication date |
---|---|
WO2001024366A1 (en) | 2001-04-05 |
EP1216505A1 (de) | 2002-06-26 |
ATE332036T1 (de) | 2006-07-15 |
DE60029113T2 (de) | 2006-12-07 |
EP1216505B1 (de) | 2006-06-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |