DE3169524D1 - Capacitive indicator of position - Google Patents
Capacitive indicator of positionInfo
- Publication number
- DE3169524D1 DE3169524D1 DE8181302779T DE3169524T DE3169524D1 DE 3169524 D1 DE3169524 D1 DE 3169524D1 DE 8181302779 T DE8181302779 T DE 8181302779T DE 3169524 T DE3169524 T DE 3169524T DE 3169524 D1 DE3169524 D1 DE 3169524D1
- Authority
- DE
- Germany
- Prior art keywords
- strips
- transmitter
- receiver
- indicator
- mobile plates
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
- G01D5/14—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
- G01D5/24—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI802222A FI61100C (fi) | 1980-07-11 | 1980-07-11 | Kapacitiv staellningsgivare |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3169524D1 true DE3169524D1 (en) | 1985-05-02 |
Family
ID=8513622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8181302779T Expired DE3169524D1 (en) | 1980-07-11 | 1981-06-19 | Capacitive indicator of position |
Country Status (7)
Country | Link |
---|---|
US (1) | US4403219A (de) |
EP (1) | EP0044146B1 (de) |
JP (1) | JPS5749810A (de) |
AT (1) | ATE12427T1 (de) |
DE (1) | DE3169524D1 (de) |
FI (1) | FI61100C (de) |
SU (1) | SU1126213A3 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4445923A (en) * | 1982-12-30 | 1984-05-01 | Owens-Illinois, Inc. | Position sensing device |
US5461319A (en) * | 1992-12-28 | 1995-10-24 | Peters; Randall D. | Symmetric differential capacitance transducer employing cross coupled conductive plates to form equipotential pairs |
US11067607B2 (en) * | 2016-08-17 | 2021-07-20 | KSR IP Holdings, LLC | Sensing systems using current steering bridges |
WO2021087220A1 (en) * | 2019-10-31 | 2021-05-06 | KSR IP Holdings, LLC | Sensing systems using current steering bridges |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2948890A (en) * | 1956-04-26 | 1960-08-09 | Dell Brothers O | Position meter |
US3340400A (en) * | 1964-06-11 | 1967-09-05 | Api Instr Company | Dual channel flaw detector having phase comparison feedback for automatic balancing |
GB1312241A (en) * | 1969-01-31 | 1973-04-04 | Norrie G O | Differential capacitor |
GB1347235A (en) * | 1970-01-23 | 1974-02-27 | Automatic Systems Lab Ltd | Variable capacitance displacement transducers |
GB1370233A (en) * | 1972-01-06 | 1974-10-16 | Goring Kerr Ltd | Electrical sorting apparatus |
US3938113A (en) * | 1974-06-17 | 1976-02-10 | International Business Machines Corporation | Differential capacitive position encoder |
US3961318A (en) * | 1975-01-17 | 1976-06-01 | Inductosyn Corporation | Electrostatic position-measuring transducer |
SE406642B (sv) * | 1977-02-16 | 1979-02-19 | Aga Ab | Elektromekanisk legesgivare |
SE411392B (sv) * | 1977-12-09 | 1979-12-17 | Inst Mikrovagsteknik Vid Tekni | Metanordning for kapacitiv bestemning av det inbordes leget hos tva relativt varandra rorliga delar |
-
1980
- 1980-07-11 FI FI802222A patent/FI61100C/fi not_active IP Right Cessation
-
1981
- 1981-06-19 DE DE8181302779T patent/DE3169524D1/de not_active Expired
- 1981-06-19 US US06/275,244 patent/US4403219A/en not_active Expired - Fee Related
- 1981-06-19 EP EP81302779A patent/EP0044146B1/de not_active Expired
- 1981-06-19 AT AT81302779T patent/ATE12427T1/de not_active IP Right Cessation
- 1981-07-10 SU SU813306782A patent/SU1126213A3/ru active
- 1981-07-11 JP JP56108771A patent/JPS5749810A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
ATE12427T1 (de) | 1985-04-15 |
US4403219A (en) | 1983-09-06 |
JPS5749810A (en) | 1982-03-24 |
FI61100C (fi) | 1982-05-10 |
SU1126213A3 (ru) | 1984-11-23 |
FI61100B (fi) | 1982-01-29 |
JPS646683B2 (de) | 1989-02-06 |
EP0044146B1 (de) | 1985-03-27 |
EP0044146A1 (de) | 1982-01-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: LABSYSTEMS OY, HELSINKI, FI |
|
8328 | Change in the person/name/address of the agent |
Free format text: NIEDMERS, O., DIPL.-PHYS. SCHOENING, H., DIPL.-ING., PAT.-ANWAELTE, 2000 HAMBURG |
|
8339 | Ceased/non-payment of the annual fee |