IL93794A - ממיר של העתקת משתנים לינאר בעל עיוות נמוך - Google Patents
ממיר של העתקת משתנים לינאר בעל עיוות נמוךInfo
- Publication number
- IL93794A IL93794A IL9379490A IL9379490A IL93794A IL 93794 A IL93794 A IL 93794A IL 9379490 A IL9379490 A IL 9379490A IL 9379490 A IL9379490 A IL 9379490A IL 93794 A IL93794 A IL 93794A
- Authority
- IL
- Israel
- Prior art keywords
- pole pieces
- primary
- core
- gaps
- pole
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 title claims description 51
- 230000005291 magnetic effect Effects 0.000 claims description 56
- 230000004907 flux Effects 0.000 claims description 50
- 230000008859 change Effects 0.000 claims description 9
- 230000004044 response Effects 0.000 claims description 5
- 238000012544 monitoring process Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 6
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000035699 permeability Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000003247 decreasing 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
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000002648 laminated material Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- G01D5/20—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 inductance, e.g. by a movable armature
- G01D5/22—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 inductance, e.g. by a movable armature differentially influencing two coils
- G01D5/2291—Linear or rotary variable differential transformers (LVDTs/RVDTs) having a single primary coil and two secondary coils
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/14—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring distance or clearance between spaced objects or spaced apertures
-
- 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
- G01D5/20—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 inductance, e.g. by a movable armature
- G01D5/22—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 inductance, e.g. by a movable armature differentially influencing two coils
- G01D5/2208—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 inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils
- G01D5/2216—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 inductance, e.g. by a movable armature differentially influencing two coils by influencing the self-induction of the coils by a movable ferromagnetic element, e.g. a core
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/335,141 US5066911A (en) | 1989-04-07 | 1989-04-07 | Apparatus and method for sensing displacement using variations magnetic flux linkage |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IL93794A0 IL93794A0 (en) | 1990-12-23 |
| IL93794A true IL93794A (he) | 1995-06-29 |
Family
ID=23310447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IL9379490A IL93794A (he) | 1989-04-07 | 1990-03-19 | ממיר של העתקת משתנים לינאר בעל עיוות נמוך |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5066911A (he) |
| EP (1) | EP0426784A4 (he) |
| JP (1) | JPH03501532A (he) |
| CA (1) | CA2012859A1 (he) |
| IL (1) | IL93794A (he) |
| WO (1) | WO1990012275A1 (he) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5235274A (en) * | 1991-10-07 | 1993-08-10 | Honeywell Inc. | Pulsed excitation position sensor system using linear variable differential transducers with multiplexing |
| EP0559943B1 (de) * | 1992-03-12 | 1996-01-03 | Siemens Aktiengesellschaft | Wandler zum Erzeugen eines Ausgangssignals abhängig von der Lage eines Geberteils |
| USRE35996E (en) * | 1993-02-18 | 1998-12-15 | Rasmussen; Robert F. | Continuous duty press monitoring system |
| US5440499A (en) * | 1993-02-18 | 1995-08-08 | Rasmussen; Robert F. | Continuous duty press monitoring system |
| US5394290A (en) * | 1993-07-06 | 1995-02-28 | Alliedsignal Inc. | Active tuned magnetic flux rate feedback sensing arrangement |
| US5329416A (en) * | 1993-07-06 | 1994-07-12 | Alliedsignal Inc. | Active broadband magnetic flux rate feedback sensing arrangement |
| US5710509A (en) * | 1995-10-30 | 1998-01-20 | Atsutoshi Goto | Phase difference detection device for an inductive position detector |
| US5808904A (en) * | 1996-11-07 | 1998-09-15 | Angstrom Corporation | Continuous duty tie rod press strain monitor |
| KR20010087621A (ko) * | 2000-03-08 | 2001-09-21 | 권영섭 | 선형가변차동변압기를 구비한 변위측정장치 및 방법 |
| FR2817623B1 (fr) * | 2000-12-04 | 2003-02-07 | Innov Pro | Dispositif permettant d'orienter des carottes de forage |
| US8558408B2 (en) | 2010-09-29 | 2013-10-15 | General Electric Company | System and method for providing redundant power to a device |
| US8478560B2 (en) | 2011-01-19 | 2013-07-02 | Honeywell International Inc. | Three wire transformer position sensor, signal processing circuitry, and temperature compensation circuitry therefor |
| US8278779B2 (en) | 2011-02-07 | 2012-10-02 | General Electric Company | System and method for providing redundant power to a device |
| US20150108969A1 (en) * | 2013-10-22 | 2015-04-23 | Texas Instruments Incorporated | On-Chip Linear Variable Differential Transformer |
| TWI485974B (zh) * | 2013-11-29 | 2015-05-21 | Amtek Semiconductor Co Ltd | 具有校正功能之驅動晶片及其應用之馬達驅動系統 |
| GB201411032D0 (en) | 2014-06-20 | 2014-08-06 | Rolls Royce Power Eng | Sensor and optimising method therefor |
| GB201411033D0 (en) | 2014-06-20 | 2014-08-06 | Rolls Royce Power Eng | Method of optimising the output of a sensor |
| CN114216389B (zh) * | 2022-02-08 | 2022-04-22 | 北京航空航天大学 | 一种lvdt位移传感器的测试与分析装置 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2445455A (en) * | 1941-12-05 | 1948-07-20 | Westinghouse Electric Corp | Electrical micrometer gauge |
| FR997296A (fr) * | 1945-07-05 | 1952-01-03 | Appareil pour la mesure linéaire et à distance de déplacements | |
| US2617854A (en) * | 1949-08-13 | 1952-11-11 | Gen Electric | Induced voltage flaw detector |
| US2697214A (en) * | 1949-12-06 | 1954-12-14 | Graydon Smith Products Corp | Measuring device |
| US2700758A (en) * | 1949-12-06 | 1955-01-25 | Graydon Smith Products Corp | Measuring device |
| US3005969A (en) * | 1957-07-06 | 1961-10-24 | Constr Meccaniche Riva S P A | Position transducer adapted to transduce the displacement of a mechanical member into an alternate voltage |
| US2989711A (en) * | 1957-11-01 | 1961-06-20 | Clevite Corp | Position measuring apparatus |
| US3116468A (en) * | 1960-10-13 | 1963-12-31 | Gen Electric | Spherical coordinate proportional control device |
| US3250982A (en) * | 1961-11-17 | 1966-05-10 | Roe A V & Co Ltd | Electro-magnetic apparatus for converting mechanical displacements into electrical voltages |
| US3137812A (en) * | 1962-12-27 | 1964-06-16 | Clevite Corp | Position responsive transducer with a permanent flux barrier |
| GB1172075A (en) * | 1966-06-18 | 1969-11-26 | Elliott Brothers London Ltd | Improved Variable Reluctance Pickoff |
| US3600669A (en) * | 1969-09-08 | 1971-08-17 | Daniel Ind Inc | Method and apparatus for linearizing the signal output of an lvdt responsive to nonlinear input motion |
| US3646537A (en) * | 1970-03-13 | 1972-02-29 | Sperry Rand Corp | Automatic gain control for an electromechanical transducer |
| DE2449697C3 (de) * | 1973-10-19 | 1980-08-14 | Hitachi, Ltd., Tokio | Mechanisch-elektrischer Meßumformer |
| CS185907B1 (en) * | 1975-09-25 | 1978-10-31 | Jaroslav Knourek | Electromagnetic pickup |
| US4109200A (en) * | 1976-06-24 | 1978-08-22 | A. O. Smith Corporation | Position sensing differential transformer system with means to convert the output to an absolute value |
| US4210891A (en) * | 1978-11-20 | 1980-07-01 | Boushey Homer A | Electromagnetic position indicator/differential transformer |
| DE2924094A1 (de) * | 1979-06-15 | 1981-01-08 | Bosch Gmbh Robert | Induktiver weg- und/oder winkelgeber |
| SU870921A1 (ru) * | 1979-12-21 | 1981-10-07 | Подмосковный Научно-Исследовательский Институт Угольной Промышленности | Индуктивный датчик перемещений |
| JPS5910814A (ja) * | 1982-07-12 | 1984-01-20 | Hitachi Metals Ltd | トナ−レベルセンサ |
| JPS6018701A (ja) * | 1983-07-13 | 1985-01-30 | Anritsu Corp | 変位測定装置 |
| US4591795A (en) * | 1984-10-01 | 1986-05-27 | United Technologies Corporation | Signal conditioning circuit for L/R VDT sensors |
| FR2587795B1 (fr) * | 1985-09-20 | 1990-02-09 | Europ Propulsion | Capteur de deplacement lineaire inductif |
| US4678991A (en) * | 1985-11-18 | 1987-07-07 | United Technologies Corporation | Inductive displacement transducer with unipolar output |
| US4810964A (en) * | 1986-01-22 | 1989-03-07 | Kamyr Ab | Method and apparatus for measuring the distance between a measuring transducer and an opposing surface, particularly with paper pulp equipment |
| DE3602107C2 (de) * | 1986-01-24 | 1996-05-30 | Bosch Gmbh Robert | Schaltungsanordnung mit Differentialtransformator |
| FR2618548B1 (fr) * | 1987-07-24 | 1992-01-03 | Alsthom | Dispositif de detection de position d'un objet soumis a un deplacement lineaire |
-
1989
- 1989-04-07 US US07/335,141 patent/US5066911A/en not_active Expired - Fee Related
-
1990
- 1990-03-12 JP JP2505240A patent/JPH03501532A/ja active Pending
- 1990-03-12 WO PCT/US1990/001337 patent/WO1990012275A1/en not_active Ceased
- 1990-03-12 EP EP19900905283 patent/EP0426784A4/en not_active Withdrawn
- 1990-03-19 IL IL9379490A patent/IL93794A/he not_active IP Right Cessation
- 1990-03-22 CA CA002012859A patent/CA2012859A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| EP0426784A4 (en) | 1992-01-08 |
| CA2012859A1 (en) | 1990-10-07 |
| IL93794A0 (en) | 1990-12-23 |
| WO1990012275A1 (en) | 1990-10-18 |
| JPH03501532A (ja) | 1991-04-04 |
| US5066911A (en) | 1991-11-19 |
| EP0426784A1 (en) | 1991-05-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RH | Patent void |