GB8709828D0 - Capacitance proximity sensor - Google Patents
Capacitance proximity sensorInfo
- Publication number
- GB8709828D0 GB8709828D0 GB878709828A GB8709828A GB8709828D0 GB 8709828 D0 GB8709828 D0 GB 8709828D0 GB 878709828 A GB878709828 A GB 878709828A GB 8709828 A GB8709828 A GB 8709828A GB 8709828 D0 GB8709828 D0 GB 8709828D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- proximity sensor
- capacitance proximity
- capacitance
- sensor
- proximity
- 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B13/00—Burglar, theft or intruder alarms
- G08B13/22—Electrical actuation
- G08B13/26—Electrical actuation by proximity of an intruder causing variation in capacitance or inductance of a circuit
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08709828A GB2205950A (en) | 1987-04-24 | 1987-04-24 | Capacitive proximity sensor |
AU16251/88A AU1625188A (en) | 1987-04-24 | 1988-04-22 | Capacitance proximity sensor |
PCT/GB1988/000311 WO1988008595A1 (en) | 1987-04-24 | 1988-04-22 | Capacitance proximity sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB08709828A GB2205950A (en) | 1987-04-24 | 1987-04-24 | Capacitive proximity sensor |
Publications (2)
Publication Number | Publication Date |
---|---|
GB8709828D0 true GB8709828D0 (en) | 1987-05-28 |
GB2205950A GB2205950A (en) | 1988-12-21 |
Family
ID=10616352
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB08709828A Pending GB2205950A (en) | 1987-04-24 | 1987-04-24 | Capacitive proximity sensor |
Country Status (3)
Country | Link |
---|---|
AU (1) | AU1625188A (en) |
GB (1) | GB2205950A (en) |
WO (1) | WO1988008595A1 (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0646970A (en) * | 1992-07-31 | 1994-02-22 | Inax Corp | Detector of seating |
US5380983A (en) * | 1993-07-12 | 1995-01-10 | Black & Decker Inc. | Electrical appliance having user proximity sensor |
SE9303582D0 (en) * | 1993-10-29 | 1993-10-29 | Goeran Hansson | Touch and theft protection for office equipment |
FR2712404B1 (en) * | 1993-11-09 | 1996-02-09 | Sagelec Sarl | Method and device for controlling an apparatus. |
US5796183A (en) * | 1996-01-31 | 1998-08-18 | Nartron Corporation | Capacitive responsive electronic switching circuit |
FR2769094B1 (en) * | 1997-09-26 | 1999-11-05 | Presto Robinets Sa | DEVICE FOR DETECTING THE FLOW OF A LIQUID |
WO2001006652A2 (en) * | 1999-07-20 | 2001-01-25 | Status Hi-Tech Limited | Capacitive switch |
GB2353097A (en) * | 1999-07-23 | 2001-02-14 | Hampden Smith David Eric | Hidden electrical switch |
GB0018914D0 (en) * | 2000-08-03 | 2000-09-20 | Rees John C | Electronic safety control |
ES2253076B1 (en) * | 2004-06-09 | 2007-03-16 | Simave Seguridad, S.A. | PROTECTION DEVICE AGAINST THE HANDLING OF AN OBJECT. |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1241728B (en) * | 1963-09-10 | 1967-06-01 | Siemens Ag | Room protection device with an oscillator, the frequency of which can be detuned by the penetration of bodies into the field space of protection electrodes, the capacitance of which is included in the frequency-determining resonant circuit of the oscillator |
DE2630683A1 (en) * | 1976-07-08 | 1978-01-12 | Rode Ing Johannes | Object guarding alarm circuit - triggers warning signal through changes in sensing coil inductivity due to geometry variation |
US4197530A (en) * | 1977-02-09 | 1980-04-08 | Laue Eric G | Passive intrusion detection system |
US4135185A (en) * | 1977-10-07 | 1979-01-16 | The United States Of America As Represented By The Secretary Of The Air Force | RF loop intruder detection system |
US4250829A (en) * | 1978-05-30 | 1981-02-17 | Brunswick Corporation | Vapor detector for marine propulsion apparatus |
EP0013484A1 (en) * | 1978-12-08 | 1980-07-23 | Lawrence Security Services Ltd | Alarm system and method for detecting the movement of an object away from a predetermined position |
FR2450464A1 (en) * | 1979-03-02 | 1980-09-26 | Anvar | Proximity detector for signalling intrusion - has electrodes connected to capacity meter which operates alarm circuit |
GB2040524A (en) * | 1979-12-04 | 1980-08-28 | Lawrence Security Services Ltd | Alarm System |
US4295132A (en) * | 1980-07-23 | 1981-10-13 | Gte Products Corporation | Capacitance intrusion detection system |
LU84369A1 (en) * | 1982-09-08 | 1984-04-24 | Roland Lienart | ANTI-FORGETTING DEVICE |
DE3315831A1 (en) * | 1983-04-30 | 1984-10-31 | Karl Jürgen 7505 Ettlingen Schwarz | Method for monitoring a stored object and circuit arrangement therefor |
FR2555782B1 (en) * | 1983-11-25 | 1986-11-14 | Commissariat Energie Atomique | STATIC INTRUSION DETECTION DEVICE |
EP0158593B1 (en) * | 1984-04-09 | 1989-05-24 | GET Gesellschaft für Elektronik-Technologie mbH | Electronic surveillance and warning device for a manipulator |
GB2199962A (en) * | 1987-01-13 | 1988-07-20 | Morphy Ltd Richards | Electric iron |
-
1987
- 1987-04-24 GB GB08709828A patent/GB2205950A/en active Pending
-
1988
- 1988-04-22 WO PCT/GB1988/000311 patent/WO1988008595A1/en unknown
- 1988-04-22 AU AU16251/88A patent/AU1625188A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU1625188A (en) | 1988-12-02 |
GB2205950A (en) | 1988-12-21 |
WO1988008595A1 (en) | 1988-11-03 |
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