DE4121110C1 - - Google Patents
Info
- Publication number
- DE4121110C1 DE4121110C1 DE19914121110 DE4121110A DE4121110C1 DE 4121110 C1 DE4121110 C1 DE 4121110C1 DE 19914121110 DE19914121110 DE 19914121110 DE 4121110 A DE4121110 A DE 4121110A DE 4121110 C1 DE4121110 C1 DE 4121110C1
- Authority
- DE
- Germany
- Prior art keywords
- electrode
- field change
- capacitive field
- evaluation unit
- base
- 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
- 238000011156 evaluation Methods 0.000 claims description 24
- 230000001681 protective effect Effects 0.000 claims description 7
- 239000011104 metalized film Substances 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 239000011888 foil Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000004072 lung Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Burglar Alarm Systems (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914121110 DE4121110C1 (enrdf_load_html_response) | 1991-06-26 | 1991-06-26 | |
| EP19920109488 EP0520222A3 (en) | 1991-06-26 | 1992-06-04 | Capacitive field changing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914121110 DE4121110C1 (enrdf_load_html_response) | 1991-06-26 | 1991-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE4121110C1 true DE4121110C1 (enrdf_load_html_response) | 1992-11-05 |
Family
ID=6434793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19914121110 Expired - Fee Related DE4121110C1 (enrdf_load_html_response) | 1991-06-26 | 1991-06-26 |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0520222A3 (enrdf_load_html_response) |
| DE (1) | DE4121110C1 (enrdf_load_html_response) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2839806A1 (de) * | 1978-09-13 | 1980-03-27 | Ristow Kg Dr Alfred | Diebstahlsicherung |
| US4293852A (en) * | 1978-12-08 | 1981-10-06 | Lawrence Security Services Ltd. | Capacitive article removal alarm |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2450464A1 (fr) * | 1979-03-02 | 1980-09-26 | Anvar | Detecteur de proximite pour la realisation de dispositifs de protection des lieux et des biens contre les intrusions, et de dispositifs de comptage |
| GB2040524A (en) * | 1979-12-04 | 1980-08-28 | Lawrence Security Services Ltd | Alarm System |
| GB8904690D0 (en) * | 1989-03-01 | 1989-04-12 | Marconi Electronic Devices | Electronic monitoring arrangement |
-
1991
- 1991-06-26 DE DE19914121110 patent/DE4121110C1/de not_active Expired - Fee Related
-
1992
- 1992-06-04 EP EP19920109488 patent/EP0520222A3/de not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2839806A1 (de) * | 1978-09-13 | 1980-03-27 | Ristow Kg Dr Alfred | Diebstahlsicherung |
| US4293852A (en) * | 1978-12-08 | 1981-10-06 | Lawrence Security Services Ltd. | Capacitive article removal alarm |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0520222A3 (en) | 1993-02-03 |
| EP0520222A2 (de) | 1992-12-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8100 | Publication of the examined application without publication of unexamined application | ||
| D1 | Grant (no unexamined application published) patent law 81 | ||
| 8363 | Opposition against the patent | ||
| 8339 | Ceased/non-payment of the annual fee |