DE69507734D1 - Induktiver Näherungsschalter mit einstellbarer Frequenz - Google Patents
Induktiver Näherungsschalter mit einstellbarer FrequenzInfo
- Publication number
- DE69507734D1 DE69507734D1 DE69507734T DE69507734T DE69507734D1 DE 69507734 D1 DE69507734 D1 DE 69507734D1 DE 69507734 T DE69507734 T DE 69507734T DE 69507734 T DE69507734 T DE 69507734T DE 69507734 D1 DE69507734 D1 DE 69507734D1
- Authority
- DE
- Germany
- Prior art keywords
- proximity switch
- adjustable frequency
- inductive proximity
- inductive
- adjustable
- 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 - Lifetime
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
- G01V3/101—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil
- G01V3/102—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils by measuring the impedance of the search coil; by measuring features of a resonant circuit comprising the search coil by measuring amplitude
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Electromagnetism (AREA)
- General Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Geophysics (AREA)
- Electronic Switches (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Near-Field Transmission Systems (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9404701A FR2718853B1 (fr) | 1994-04-18 | 1994-04-18 | Détecteur de proximité inductif à fréquence ajustable. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69507734D1 true DE69507734D1 (de) | 1999-03-25 |
DE69507734T2 DE69507734T2 (de) | 1999-07-22 |
Family
ID=9462294
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69507734T Expired - Lifetime DE69507734T2 (de) | 1994-04-18 | 1995-04-06 | Induktiver Näherungsschalter mit einstellbarer Frequenz |
Country Status (6)
Country | Link |
---|---|
US (1) | US5508662A (de) |
EP (1) | EP0678759B1 (de) |
JP (1) | JPH07297767A (de) |
DE (1) | DE69507734T2 (de) |
DK (1) | DK0678759T3 (de) |
FR (1) | FR2718853B1 (de) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2771822B1 (fr) * | 1997-11-28 | 1999-12-31 | Schneider Electric Sa | Detecteur de proximite inductif configurable |
JP2000307344A (ja) * | 1999-04-16 | 2000-11-02 | Fujitsu Ltd | 電圧制御発振器及び半導体集積回路装置 |
US6650111B2 (en) * | 2001-07-18 | 2003-11-18 | Eaton Corporation | Pulsed excited proximity sensor |
US7142113B2 (en) * | 2004-02-17 | 2006-11-28 | Sensormatic Electronics Corporation | Method and apparatus to detect an external source |
US7173410B1 (en) * | 2004-09-28 | 2007-02-06 | Rockwell Automation Technologies, Inc. | Proximity sensor combining impedance, frequency and decay constant information |
US7173411B1 (en) * | 2004-09-30 | 2007-02-06 | Rockwell Automation Technologies, Inc. | Inductive proximity sensor using coil time constant for temperature compensation |
DE102007003374A1 (de) * | 2006-02-22 | 2007-09-20 | Pepperl + Fuchs Gmbh | Induktiver Näherungsschalter sowie Verfahren zum Betreiben eines solchen |
CN101498753B (zh) * | 2008-02-01 | 2011-04-13 | 中茂电子(深圳)有限公司 | 可根据待测物阻抗调整操作频宽的负载装置与调整方法 |
US8692541B2 (en) * | 2011-10-05 | 2014-04-08 | David Scott Nyce | Position sensing head with redundancy |
US9052350B2 (en) * | 2012-07-31 | 2015-06-09 | General Electric Company | On-line monitoring system for use with electrical assets and method of operating the same |
CN105353417A (zh) * | 2015-09-28 | 2016-02-24 | 芜湖市恒峰科技有限公司 | 一种低功耗地下金属管道探测电路 |
US10571423B2 (en) | 2016-06-24 | 2020-02-25 | Stanley Black & Decker Inc. | Systems and methods for locating a stud |
US10908312B2 (en) | 2016-06-24 | 2021-02-02 | Stanley Black & Decker Inc. | Systems and methods for locating a metal object |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3848243A (en) * | 1973-02-09 | 1974-11-12 | H Schirmer | Inductive reactance proximity alarm system for bulky movable objects |
FR2281578A1 (fr) * | 1974-08-07 | 1976-03-05 | Texas Instruments France | Detecteur de proximite |
DE3543935A1 (de) * | 1985-12-12 | 1987-06-19 | Siemens Ag | Induktiver naeherungsschalter |
-
1994
- 1994-04-18 FR FR9404701A patent/FR2718853B1/fr not_active Expired - Fee Related
-
1995
- 1995-04-04 US US08/416,230 patent/US5508662A/en not_active Expired - Lifetime
- 1995-04-06 DK DK95400768T patent/DK0678759T3/da active
- 1995-04-06 EP EP95400768A patent/EP0678759B1/de not_active Expired - Lifetime
- 1995-04-06 DE DE69507734T patent/DE69507734T2/de not_active Expired - Lifetime
- 1995-04-18 JP JP7092722A patent/JPH07297767A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2718853B1 (fr) | 1996-05-15 |
JPH07297767A (ja) | 1995-11-10 |
EP0678759B1 (de) | 1999-02-10 |
US5508662A (en) | 1996-04-16 |
FR2718853A1 (fr) | 1995-10-20 |
DK0678759T3 (da) | 2000-04-17 |
EP0678759A1 (de) | 1995-10-25 |
DE69507734T2 (de) | 1999-07-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69503192T2 (de) | Ringoszillator mit einstellbarer Frequenz | |
DE69507994D1 (de) | Hochfrequenzschalter | |
FI935543A (fi) | Cdma frekvensallokering | |
FR2716979B1 (fr) | Détecteur de proximité inductif. | |
GB2273821B (en) | High-frequency switch | |
FI934140A (fi) | Radio med tysta respektive hoerbara larmsignaler | |
DE69425867D1 (de) | Induktives Bauelement | |
DE69211349D1 (de) | Linearer Hochfrequenz-Stellungsgeber | |
FI935258A (fi) | Radiofrekvent felindikering och -korrigeringssystem | |
DE69524349T2 (de) | Mikrowellenresonator | |
DE69507734D1 (de) | Induktiver Näherungsschalter mit einstellbarer Frequenz | |
BR9205051A (pt) | Linha alta frequencia irradiadora | |
DE69735239D1 (de) | Hochfrequenzschalter | |
EP0484074A3 (en) | High-frequency, high-leakage-reactance transformer | |
DE19581471T1 (de) | Synthesizer mit einstellbarer Frequenz | |
DE69511272D1 (de) | Mikrowellenschalter | |
DE9401575U1 (de) | Induktiver Näherungsschalter | |
FI925325A (fi) | Frekvenssyntetisator | |
KR950006852U (ko) | 고주파 가열장치 | |
DE9219165U1 (de) | Induktiver Näherungsschalter | |
ATA224291A (de) | Frequenzgenerator mit kanalumschaltung | |
KR960020187U (ko) | 저주파 전침기 | |
KR950033843U (ko) | 고주파가열장치 | |
DE29521975U1 (de) | Induktiver Näherungsschalter | |
KR920018390U (ko) | 전자레인지 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
R082 | Change of representative |
Ref document number: 678759 Country of ref document: EP Representative=s name: KAI HUBLE, 82319 STARNBERG, DE |
|
R084 | Declaration of willingness to licence |
Ref document number: 678759 Country of ref document: EP Effective date: 20111228 |