CH569337A5 - - Google Patents
Info
- Publication number
- CH569337A5 CH569337A5 CH146273A CH146273A CH569337A5 CH 569337 A5 CH569337 A5 CH 569337A5 CH 146273 A CH146273 A CH 146273A CH 146273 A CH146273 A CH 146273A CH 569337 A5 CH569337 A5 CH 569337A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
-
- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/042—Detecting movement of traffic to be counted or controlled using inductive or magnetic detectors
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/14—Modifications for compensating variations of physical values, e.g. of temperature
-
- 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
- H03K17/9512—Proximity switches using a magnetic detector using digital techniques
-
- 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
- H03K17/9525—Proximity switches using a magnetic detector using inductive coils controlled by an oscillatory signal
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
- H03K5/01—Shaping pulses
- H03K5/08—Shaping pulses by limiting; by thresholding; by slicing, i.e. combined limiting and thresholding
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Nonlinear Science (AREA)
- Geophysics And Detection Of Objects (AREA)
- Measuring Magnetic Variables (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7203787A FR2170865B1 (xx) | 1972-02-04 | 1972-02-04 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH569337A5 true CH569337A5 (xx) | 1975-11-14 |
Family
ID=9093007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH146273A CH569337A5 (xx) | 1972-02-04 | 1973-02-01 |
Country Status (5)
Country | Link |
---|---|
US (1) | US3944912A (xx) |
CH (1) | CH569337A5 (xx) |
DE (1) | DE2301790A1 (xx) |
FR (1) | FR2170865B1 (xx) |
GB (1) | GB1412871A (xx) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4059796A (en) * | 1976-11-11 | 1977-11-22 | Rockwell International Corporation | Second harmonic magnetic field detection circuit with means to rectify the sensed signal |
US4060761A (en) * | 1976-11-11 | 1977-11-29 | Rockwell International Corporation | Tubular magnetic field sensor with means to rectify the sensed signal |
FR2371675A1 (fr) * | 1976-11-19 | 1978-06-16 | Thomson Csf | Capteur electromagnetique sensible a une modification d'un champ magnetique et son application a la circulation routiere |
US4276539A (en) * | 1978-06-22 | 1981-06-30 | U.S. Philips Corporation | Vehicle detection systems |
DE2832251A1 (de) * | 1978-07-22 | 1980-02-21 | Foerster Friedrich Dr | Verfahren und anordnung zum aufsuchen ferromagnetischer koerper |
GB8908180D0 (en) * | 1989-04-12 | 1989-05-24 | Marconi Co Ltd | Road traffic signalling system |
DE4039422C2 (de) * | 1990-12-11 | 1993-09-30 | Honeywell Regelsysteme Gmbh | Magnetfeldsensor |
US5455768A (en) * | 1992-11-06 | 1995-10-03 | Safetran Traffic Systems, Inc. | System for determining vehicle speed and presence |
US5821790A (en) * | 1996-04-24 | 1998-10-13 | Paragon Electric Company, Inc. | Power line synchronization conditioner |
JP3147830B2 (ja) * | 1996-09-24 | 2001-03-19 | アンデン株式会社 | 電磁継電器の駆動回路 |
US5748108A (en) * | 1997-01-10 | 1998-05-05 | Nu-Metrics, Inc. | Method and apparatus for analyzing traffic and a sensor therefor |
DE10225803A1 (de) * | 2002-06-10 | 2003-12-24 | Schleifring Und Appbau Gmbh | Vorrichtung zur breitbandigen elektrischen Verbindung zweier gegeneinander beweglicher Einheiten |
JP4957495B2 (ja) * | 2007-10-03 | 2012-06-20 | 株式会社豊田自動織機 | 信号伝達回路 |
US8378660B2 (en) * | 2008-10-09 | 2013-02-19 | Microchip Technology Incorporated | Programmable integrated circuit device to support inductive sensing |
CN102542809B (zh) * | 2010-12-22 | 2014-06-04 | 无锡物联网产业研究院 | 交通信息检测方法、系统及磁敏传感器节点 |
CN105304407B (zh) * | 2015-11-11 | 2018-05-15 | 上海科勒电子科技有限公司 | 一种控制磁性开关的系统和方法 |
CN114209300B (zh) * | 2021-12-14 | 2024-07-12 | 西安电子科技大学 | 一种脉冲磁粒子成像方法和系统 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2406870A (en) * | 1941-07-21 | 1946-09-03 | Gulf Research Development Co | Apparatus for responding to magnetic fields |
US2570870A (en) * | 1944-06-29 | 1951-10-09 | Otto H Schmitt | Electrical bridge compensation system for magnetometers |
US2696602A (en) * | 1944-07-06 | 1954-12-07 | Evans Chauncey Richard | Compensated magnetometer |
US2807720A (en) * | 1953-01-12 | 1957-09-24 | Asea Ab | Regulated oscillator |
US2938164A (en) * | 1957-06-25 | 1960-05-24 | Hansburg Milton | Automatic earth field balance control system for magnetometers |
US3218547A (en) * | 1961-11-29 | 1965-11-16 | Ling Sung Ching | Flux sensing device using a tubular core with toroidal gating coil and solenoidal output coil wound thereon |
US3458802A (en) * | 1966-05-02 | 1969-07-29 | Bunker Ramo | Magnetic vehicle detection system including feedback means for eliminating spurious presence indications |
US3649958A (en) * | 1970-03-25 | 1972-03-14 | Canoga Controls Corp | Vehicle detection system |
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1972
- 1972-02-04 FR FR7203787A patent/FR2170865B1/fr not_active Expired
-
1973
- 1973-01-11 US US05/322,632 patent/US3944912A/en not_active Expired - Lifetime
- 1973-01-15 DE DE2301790A patent/DE2301790A1/de active Pending
- 1973-02-01 CH CH146273A patent/CH569337A5/xx not_active IP Right Cessation
- 1973-02-01 GB GB509473A patent/GB1412871A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1412871A (en) | 1975-11-05 |
DE2301790A1 (de) | 1973-08-09 |
US3944912A (en) | 1976-03-16 |
FR2170865A1 (xx) | 1973-09-21 |
FR2170865B1 (xx) | 1974-12-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |