DE2539765C2 - Kapazitiver Annäherungsschalter - Google Patents
Kapazitiver AnnäherungsschalterInfo
- Publication number
- DE2539765C2 DE2539765C2 DE19752539765 DE2539765A DE2539765C2 DE 2539765 C2 DE2539765 C2 DE 2539765C2 DE 19752539765 DE19752539765 DE 19752539765 DE 2539765 A DE2539765 A DE 2539765A DE 2539765 C2 DE2539765 C2 DE 2539765C2
- Authority
- DE
- Germany
- Prior art keywords
- proximity switch
- switch according
- capacitor
- stray field
- transmitter
- 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
Links
- 239000003990 capacitor Substances 0.000 claims description 105
- 230000008859 change Effects 0.000 claims description 32
- 230000001939 inductive effect Effects 0.000 claims description 17
- 230000005669 field effect Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 229910000859 α-Fe Inorganic materials 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000011156 evaluation Methods 0.000 description 23
- 230000003068 static effect Effects 0.000 description 7
- 238000000576 coating method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000013459 approach Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012806 monitoring device Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
- H03K17/955—Proximity switches using a capacitive detector
Landscapes
- Electronic Switches (AREA)
- Switches That Are Operated By Magnetic Or Electric Fields (AREA)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752539765 DE2539765C2 (de) | 1975-09-06 | 1975-09-06 | Kapazitiver Annäherungsschalter |
| GB3425876A GB1548159A (en) | 1975-09-06 | 1976-08-17 | Proximity switch |
| GB637077A GB1548160A (en) | 1975-09-06 | 1976-08-17 | Proximity switch |
| FR7626755A FR2366651A1 (fr) | 1975-09-06 | 1976-09-06 | Interrupteur detecteur de proximite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19752539765 DE2539765C2 (de) | 1975-09-06 | 1975-09-06 | Kapazitiver Annäherungsschalter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE2539765B1 DE2539765B1 (de) | 1976-11-18 |
| DE2539765C2 true DE2539765C2 (de) | 1987-06-19 |
Family
ID=5955813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19752539765 Expired DE2539765C2 (de) | 1975-09-06 | 1975-09-06 | Kapazitiver Annäherungsschalter |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2539765C2 (ja) |
| FR (1) | FR2366651A1 (ja) |
| GB (1) | GB1548159A (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3911009A1 (de) * | 1989-04-05 | 1990-10-11 | Ifm Electronic Gmbh | Elektronischer annaeherungsschalter |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4082402B2 (ja) * | 2004-10-19 | 2008-04-30 | 松下電器産業株式会社 | タッチキーを用いた電磁調理器 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1766553C (de) * | Westdeutscher Wach- und Schutzdienst, 4300 Essen | Radar-Raumschutzanlage | ||
| US3048136A (en) * | 1957-04-24 | 1962-08-07 | Elmond A Holmes | Antenna compensating electrodes for use in dissipative medium |
| CH396704A (de) * | 1960-04-22 | 1965-07-31 | Mettler Alois | Elektrische Sicherungsanlage mit einem Sender zur Ausstrahlung elektromagnetischer Wellen |
| DE1959843U (de) * | 1964-11-14 | 1967-05-03 | Pinkerton S Inc | Elektromagnetischer objektdetektor. |
| US3331065A (en) * | 1962-05-31 | 1967-07-11 | Sylvania Electric Prod | Signal processing circuit for intrusion alarm system |
| DE2011646A1 (de) * | 1969-03-17 | 1970-09-24 | Joseph Lucas (Industries) Ltd., Birmingham (Grossbritannien) | Elektrische Steuerung |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3515987A (en) * | 1967-10-20 | 1970-06-02 | Avco Corp | Coplanar dielectric probe having means for minimizing capacitance from stray sources |
| CH496281A (de) * | 1969-03-11 | 1970-09-15 | Groen Johannes | Vorrichtung zur Abgabe einer Flüssigkeit mit wenigstens einem von einem Annäherungsdetektor gesteuerten elektromagnetischen Ventil |
| DE2239359A1 (de) * | 1972-08-10 | 1974-02-21 | Bosch Gmbh Robert | Schaltanordnung mit einem kapazitiven detektor |
-
1975
- 1975-09-06 DE DE19752539765 patent/DE2539765C2/de not_active Expired
-
1976
- 1976-08-17 GB GB3425876A patent/GB1548159A/en not_active Expired
- 1976-09-06 FR FR7626755A patent/FR2366651A1/fr active Granted
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1766553C (de) * | Westdeutscher Wach- und Schutzdienst, 4300 Essen | Radar-Raumschutzanlage | ||
| US3048136A (en) * | 1957-04-24 | 1962-08-07 | Elmond A Holmes | Antenna compensating electrodes for use in dissipative medium |
| CH396704A (de) * | 1960-04-22 | 1965-07-31 | Mettler Alois | Elektrische Sicherungsanlage mit einem Sender zur Ausstrahlung elektromagnetischer Wellen |
| US3331065A (en) * | 1962-05-31 | 1967-07-11 | Sylvania Electric Prod | Signal processing circuit for intrusion alarm system |
| DE1959843U (de) * | 1964-11-14 | 1967-05-03 | Pinkerton S Inc | Elektromagnetischer objektdetektor. |
| DE2011646A1 (de) * | 1969-03-17 | 1970-09-24 | Joseph Lucas (Industries) Ltd., Birmingham (Grossbritannien) | Elektrische Steuerung |
Non-Patent Citations (4)
| Title |
|---|
| Handbuch für Hochfrequenz- und Elektro-Techniker, Bd.5, Verlag für Radio-Foto-Technik, Berlin, 1957,Stichwort "Kompensator" * |
| In Betracht gezogene ältere Anmeldung: DE 21 01 714 C3 * |
| LÜGER, Lexikon der Technik,Bd.2,Deutsche Verlags- Anstalt GmbH, Stuttgart, 1960, S.294,295,213-215, 564,565 * |
| LÜGER,Lexikon der Technik,Bd.13,Deutsche Verlags- Anstalt GmbH, Stuttgart, 1968, S.522,523 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3911009A1 (de) * | 1989-04-05 | 1990-10-11 | Ifm Electronic Gmbh | Elektronischer annaeherungsschalter |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2366651A1 (fr) | 1978-04-28 |
| DE2539765B1 (de) | 1976-11-18 |
| FR2366651B1 (ja) | 1982-10-01 |
| GB1548159A (en) | 1979-07-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8225 | Change of the main classification |
Ipc: H03K 17/955 |
|
| 8281 | Inventor (new situation) |
Free format text: GERUM, ERICH ARNOLD, WERNER, 8500 NUERNBERG, DE |
|
| 8339 | Ceased/non-payment of the annual fee |