DE4120806C2 - - Google Patents
Info
- Publication number
- DE4120806C2 DE4120806C2 DE19914120806 DE4120806A DE4120806C2 DE 4120806 C2 DE4120806 C2 DE 4120806C2 DE 19914120806 DE19914120806 DE 19914120806 DE 4120806 A DE4120806 A DE 4120806A DE 4120806 C2 DE4120806 C2 DE 4120806C2
- Authority
- DE
- Germany
- Prior art keywords
- resonant circuit
- active
- coil
- oscillator
- proximity switch
- 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
- 239000002184 metal Substances 0.000 claims description 28
- 229910052751 metal Inorganic materials 0.000 claims description 28
- 230000001939 inductive effect Effects 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 13
- -1 ferrous metals Chemical class 0.000 claims description 12
- 150000002739 metals Chemical class 0.000 claims description 12
- 239000003990 capacitor Substances 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 9
- 230000009467 reduction Effects 0.000 claims description 9
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 230000035699 permeability Effects 0.000 claims description 2
- 230000005672 electromagnetic field Effects 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000013016 damping Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000010355 oscillation Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 229910000746 Structural steel Inorganic materials 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000009966 trimming Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 229910000859 α-Fe Inorganic materials 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
- H03K17/95—Proximity switches using a magnetic detector
- H03K17/952—Proximity switches using a magnetic detector using inductive coils
- H03K17/9537—Proximity switches using a magnetic detector using inductive coils in a resonant circuit
- H03K17/9542—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator
- H03K17/9547—Proximity switches using a magnetic detector using inductive coils in a resonant circuit forming part of an oscillator with variable amplitude
Landscapes
- Electronic Switches (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19914120806 DE4120806A1 (de) | 1990-07-03 | 1991-06-24 | Induktiver naeherungsschalter |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19904021164 DE4021164C1 (en) | 1990-07-03 | 1990-07-03 | Inductive proximity circuit for machine tool - has oscillator transistor output signal compared with external signal for switching initiation |
| DE19914120806 DE4120806A1 (de) | 1990-07-03 | 1991-06-24 | Induktiver naeherungsschalter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| DE4120806A1 DE4120806A1 (de) | 1993-01-14 |
| DE4120806C2 true DE4120806C2 (enrdf_load_stackoverflow) | 1993-07-15 |
Family
ID=25894679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19914120806 Granted DE4120806A1 (de) | 1990-07-03 | 1991-06-24 | Induktiver naeherungsschalter |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE4120806A1 (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611810A1 (de) * | 1996-03-26 | 1997-10-02 | Balluff Gebhard Gmbh & Co | Berührungslos arbeitender Näherungsschalter |
| DE19738834A1 (de) * | 1997-09-05 | 1999-03-11 | Hella Kg Hueck & Co | Induktiver Winkelsensor für ein Kraftfahrzeug |
| DE102009044820A1 (de) | 2009-12-08 | 2011-06-09 | Turck Holding Gmbh | Selbstkalibrierender Näherungsschalter |
| DE102011016504A1 (de) * | 2011-04-08 | 2012-10-11 | Behr-Hella Thermocontrol Gmbh | Anzeigevorrichtung für eine Fahrzeugkomponente |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4323091A1 (de) * | 1993-07-10 | 1995-01-12 | Heidelberger Druckmasch Ag | Anordnung zur Kontrolle der Lage einer Bogenkante auf einer Bogentransporttrommel |
| DE4330140C2 (de) * | 1993-09-07 | 1997-07-17 | Ifm Electronic Gmbh | Induktiver Näherungsschalter |
| DE202004015944U1 (de) * | 2004-10-15 | 2006-02-23 | Pepperl + Fuchs Gmbh | Induktiver Näherungsschalter mit einem aktiven LC-Schwingkreis |
| EP1885065B1 (de) | 2006-07-27 | 2011-10-12 | Pepperl + Fuchs GmbH | Induktiver Näherungsschalter und Verfahren zu dessen Betrieb |
| DE102015215352A1 (de) * | 2015-08-12 | 2017-02-16 | Continental Teves Ag & Co. Ohg | Sensorsystem mit Mikrokontroller und minimierter Peripherie |
| CN108027254B (zh) | 2015-08-11 | 2021-04-06 | 大陆-特韦斯股份有限公司 | 用于对测量变量进行测量的器件 |
| DE102015215330A1 (de) | 2015-08-11 | 2017-02-16 | Continental Teves Ag & Co. Ohg | Induktive Sensoren mit Betriebsfrequenz nahe der Resonanz |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3714433C2 (de) * | 1987-04-30 | 1994-04-28 | Turck Werner Kg | Induktiver Näherungsschalter |
| DE3919916A1 (de) * | 1989-06-19 | 1990-12-20 | Pepperl & Fuchs | Induktiver naeherungsschalter |
-
1991
- 1991-06-24 DE DE19914120806 patent/DE4120806A1/de active Granted
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19611810A1 (de) * | 1996-03-26 | 1997-10-02 | Balluff Gebhard Gmbh & Co | Berührungslos arbeitender Näherungsschalter |
| DE19611810C2 (de) * | 1996-03-26 | 2000-12-28 | Balluff Gebhard Gmbh & Co | Berührungslos arbeitender Näherungsschalter |
| DE19738834A1 (de) * | 1997-09-05 | 1999-03-11 | Hella Kg Hueck & Co | Induktiver Winkelsensor für ein Kraftfahrzeug |
| US6166535A (en) * | 1997-09-05 | 2000-12-26 | Hella Kg Hueck & Co. | Inductive angle sensor that adapts an oscillator frequency and phase relationship to that of an interference frequency |
| DE102009044820A1 (de) | 2009-12-08 | 2011-06-09 | Turck Holding Gmbh | Selbstkalibrierender Näherungsschalter |
| DE102009044820B4 (de) * | 2009-12-08 | 2011-09-01 | Turck Holding Gmbh | Selbstkalibrierender Näherungsschalter |
| DE102011016504A1 (de) * | 2011-04-08 | 2012-10-11 | Behr-Hella Thermocontrol Gmbh | Anzeigevorrichtung für eine Fahrzeugkomponente |
| DE102011016504B4 (de) * | 2011-04-08 | 2013-07-18 | Behr-Hella Thermocontrol Gmbh | Anzeigevorrichtung für eine Fahrzeugkomponente |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4120806A1 (de) | 1993-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AF | Is addition to no. |
Ref country code: DE Ref document number: 4021164 Format of ref document f/p: P |
|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| AF | Is addition to no. |
Ref country code: DE Ref document number: 4021164 Format of ref document f/p: P |
|
| D2 | Grant after examination | ||
| 8364 | No opposition during term of opposition | ||
| 8362 | Rights of main patent transferred to additional patent |