US3772587A - Position measuring transformer - Google Patents

Position measuring transformer Download PDF

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Publication number
US3772587A
US3772587A US00234792A US3772587DA US3772587A US 3772587 A US3772587 A US 3772587A US 00234792 A US00234792 A US 00234792A US 3772587D A US3772587D A US 3772587DA US 3772587 A US3772587 A US 3772587A
Authority
US
United States
Prior art keywords
winding
space
sections
winding sections
windings
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
Application number
US00234792A
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English (en)
Inventor
C Farrand
V Foster
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Inductosyn Corp
Original Assignee
Inductosyn Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Inductosyn Corp filed Critical Inductosyn Corp
Application granted granted Critical
Publication of US3772587A publication Critical patent/US3772587A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/08—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators
    • H01F29/12—Variable transformers or inductances not covered by group H01F21/00 with core, coil, winding, or shield movable to offset variation of voltage or phase shift, e.g. induction regulators having movable coil, winding, or part thereof; having movable shield
    • 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
    • G01D5/204—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 by influencing the mutual induction between two or more coils
    • G01D5/2073—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 by influencing the mutual induction between two or more coils by movement of a single coil with respect to two or more coils

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Coils Of Transformers For General Uses (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)
US00234792A 1972-03-15 1972-03-15 Position measuring transformer Expired - Lifetime US3772587A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23479272A 1972-03-15 1972-03-15

Publications (1)

Publication Number Publication Date
US3772587A true US3772587A (en) 1973-11-13

Family

ID=22882847

Family Applications (1)

Application Number Title Priority Date Filing Date
US00234792A Expired - Lifetime US3772587A (en) 1972-03-15 1972-03-15 Position measuring transformer

Country Status (11)

Country Link
US (1) US3772587A (fr)
JP (1) JPS5147544B2 (fr)
AU (1) AU469223B2 (fr)
CA (1) CA987751A (fr)
CH (1) CH564761A5 (fr)
DE (1) DE2365519C2 (fr)
FR (1) FR2176326A5 (fr)
GB (1) GB1391669A (fr)
IT (1) IT959283B (fr)
NO (1) NO136061C (fr)
SE (1) SE391613B (fr)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882437A (en) * 1973-07-13 1975-05-06 Inductosyn Corp Harmonic cancellation in a variable coupling transformer
US3953816A (en) * 1972-10-10 1976-04-27 Compagnie (Societe) Anonyme Position detecting system
US3962663A (en) * 1973-04-13 1976-06-08 U.S. Philips Corporation Inductive position determining device
US4096463A (en) * 1976-12-02 1978-06-20 Xerox Corporation Inductive transducer
US4167808A (en) * 1977-08-15 1979-09-18 Giddings & Lewis, Inc. Harness for electromagnetic transducer
EP0006959A1 (fr) * 1977-12-13 1980-01-23 Fujitsu Limited Procede de fabrication d'une bobine a film mince
US4590426A (en) * 1983-12-08 1986-05-20 Sperry Corporation Bzz and Byz sense loop geometries for cylindrical tensor gradiometer loop structures
EP0295609A2 (fr) * 1987-06-15 1988-12-21 Kollmorgen Corporation Bobinages de circuits imprimés par capteurs d'induction blindés, notamment capteurs de la mesure de niveau
WO1990001781A1 (fr) * 1988-08-04 1990-02-22 Caterpillar Inc. Structure de bobine inductive
US4985691A (en) * 1986-02-26 1991-01-15 University Of Pittsburgh Contactless motion sensor
EP0443148A1 (fr) * 1990-02-09 1991-08-28 Robert Bosch Gmbh Capteur de position
US5239288A (en) * 1990-03-09 1993-08-24 Transicoil Inc. Resolver having planar windings
WO1997019323A1 (fr) * 1995-11-23 1997-05-29 Scientific Generics Limited Codeur de positions
US5939966A (en) * 1994-06-02 1999-08-17 Ricoh Company, Ltd. Inductor, transformer, and manufacturing method thereof
WO1999061868A1 (fr) * 1998-05-22 1999-12-02 Synaptics (Uk) Limited Detecteur de position
US20010006369A1 (en) * 1998-12-24 2001-07-05 Ely David T.E. Position sensor
US6304014B1 (en) 1997-10-02 2001-10-16 Synaptics (Uk) Limited Motor control system
US6380749B1 (en) * 1998-02-26 2002-04-30 Metso Paper Automation Oy Apparatus for measuring properties of a moving paper web or cardboard web
US6489899B1 (en) 1994-05-14 2002-12-03 Synaptics (Uk) Limited Position detector
US6522128B1 (en) 1997-10-15 2003-02-18 Synaptics (Uk) Limited Position sensor having compact arrangement of coils
US20030062889A1 (en) * 1996-12-12 2003-04-03 Synaptics (Uk) Limited Position detector
US20030229404A1 (en) * 1999-12-10 2003-12-11 Howard Mark A. Man-machine interface
US6705511B1 (en) 1997-05-28 2004-03-16 Synaptics (Uk) Limited Transducer and method of manufacture
US6788221B1 (en) 1996-06-28 2004-09-07 Synaptics (Uk) Limited Signal processing apparatus and method
US20050030010A1 (en) * 2001-10-30 2005-02-10 Jones Ross Peter Sensing apparatus and method
US20050035836A1 (en) * 2001-05-30 2005-02-17 Sensopad Technologies Limited Sensing apparatus and method
US6888538B2 (en) 1994-05-14 2005-05-03 Synaptics (Uk) Limited Position sensor
US20060119351A1 (en) * 2002-10-16 2006-06-08 Tt Electronics Technology Limited Sensing apparatus and method
US20060125472A1 (en) * 2002-10-16 2006-06-15 Tt Electronics Technology Limited Position sensing apparatus and method
US20060244464A1 (en) * 2003-02-17 2006-11-02 Sensopad Limited Sensing apparatus and method
US7133793B2 (en) 2003-07-24 2006-11-07 Synaptics (Uk) Limited Magnetic calibration array
US7406393B2 (en) 2002-03-05 2008-07-29 Synaptics (Uk) Limited Position sensor
US20080204116A1 (en) * 2004-08-09 2008-08-28 Sensopad Limited Sensing Apparatus And Method
US7511705B2 (en) 2001-05-21 2009-03-31 Synaptics (Uk) Limited Position sensor
US7812268B2 (en) 2003-08-26 2010-10-12 Synaptics (Uk) Limited Digitizer system
US7907130B2 (en) 2002-06-05 2011-03-15 Synaptics (Uk) Limited Signal transfer method and apparatus
CN102769343A (zh) * 2011-05-02 2012-11-07 大隈株式会社 定子和旋转变压器
US8570028B2 (en) 2007-05-10 2013-10-29 Cambridge Integrated Circuits Limited Transducer for a position sensor
US9410791B2 (en) 2010-12-24 2016-08-09 Cambridge Integrated Circuits Limited Position sensing transducer
US9470505B2 (en) 2012-06-13 2016-10-18 Cambridge Integrated Circuits Limited Position sensing transducer
CN114763981A (zh) * 2020-12-31 2022-07-19 株式会社三丰 感应式位置编码器的感测绕组配置

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1177127A (fr) * 1980-11-14 1984-10-30 William H. Morong, Iii Transformateur miniature
JPS58144107U (ja) * 1982-03-24 1983-09-28 渡辺パイプ株式会社 骨材組立て用連結装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685070A (en) * 1948-10-27 1954-07-27 Edward G Martin Variable inductance measuring apparatus
US2867783A (en) * 1948-11-06 1959-01-06 Edward G Martin Measuring device
US2915721A (en) * 1957-06-13 1959-12-01 Inductosyn Corp Reduction of single-turn loop coupling in position-measuring transformers
US3148347A (en) * 1961-01-27 1964-09-08 Westinghouse Electric Corp Transducer having relatively angular movable bifilar printed-circuit-type coils
US3441888A (en) * 1966-10-03 1969-04-29 Inductosyn Corp Multi-layer windings for position measuring transformers
US3466580A (en) * 1965-07-30 1969-09-09 Emi Ltd Circuit elements especially for use as scanning coils
US3587019A (en) * 1965-07-30 1971-06-22 Emi Ltd Scanning coils
US3668587A (en) * 1970-05-13 1972-06-06 Inductosyn Corp Multi-layer polyphase winding member and transformer
US3673584A (en) * 1971-03-08 1972-06-27 Inductosyn Corp Position-measuring transformer having end-detecting windings useful for positioning a magnetic head of a disc drive system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2685070A (en) * 1948-10-27 1954-07-27 Edward G Martin Variable inductance measuring apparatus
US2867783A (en) * 1948-11-06 1959-01-06 Edward G Martin Measuring device
US2915721A (en) * 1957-06-13 1959-12-01 Inductosyn Corp Reduction of single-turn loop coupling in position-measuring transformers
US3148347A (en) * 1961-01-27 1964-09-08 Westinghouse Electric Corp Transducer having relatively angular movable bifilar printed-circuit-type coils
US3466580A (en) * 1965-07-30 1969-09-09 Emi Ltd Circuit elements especially for use as scanning coils
US3587019A (en) * 1965-07-30 1971-06-22 Emi Ltd Scanning coils
US3441888A (en) * 1966-10-03 1969-04-29 Inductosyn Corp Multi-layer windings for position measuring transformers
US3668587A (en) * 1970-05-13 1972-06-06 Inductosyn Corp Multi-layer polyphase winding member and transformer
US3673584A (en) * 1971-03-08 1972-06-27 Inductosyn Corp Position-measuring transformer having end-detecting windings useful for positioning a magnetic head of a disc drive system

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3953816A (en) * 1972-10-10 1976-04-27 Compagnie (Societe) Anonyme Position detecting system
US3962663A (en) * 1973-04-13 1976-06-08 U.S. Philips Corporation Inductive position determining device
US3882437A (en) * 1973-07-13 1975-05-06 Inductosyn Corp Harmonic cancellation in a variable coupling transformer
US4096463A (en) * 1976-12-02 1978-06-20 Xerox Corporation Inductive transducer
US4167808A (en) * 1977-08-15 1979-09-18 Giddings & Lewis, Inc. Harness for electromagnetic transducer
EP0006959A1 (fr) * 1977-12-13 1980-01-23 Fujitsu Limited Procede de fabrication d'une bobine a film mince
EP0006959A4 (fr) * 1977-12-13 1980-05-06 Fujitsu Ltd Procede de fabrication d'une bobine a film mince.
US4590426A (en) * 1983-12-08 1986-05-20 Sperry Corporation Bzz and Byz sense loop geometries for cylindrical tensor gradiometer loop structures
US4985691A (en) * 1986-02-26 1991-01-15 University Of Pittsburgh Contactless motion sensor
EP0295609A3 (fr) * 1987-06-15 1991-01-09 Kollmorgen Corporation Bobinages de circuits imprimés par capteurs d'induction blindés, notamment capteurs de la mesure de niveau
EP0295609A2 (fr) * 1987-06-15 1988-12-21 Kollmorgen Corporation Bobinages de circuits imprimés par capteurs d'induction blindés, notamment capteurs de la mesure de niveau
US4918418A (en) * 1988-08-04 1990-04-17 Caterpillar Inc. Inductive coil structure with electrical return path
WO1990001781A1 (fr) * 1988-08-04 1990-02-22 Caterpillar Inc. Structure de bobine inductive
EP0443148A1 (fr) * 1990-02-09 1991-08-28 Robert Bosch Gmbh Capteur de position
US5239288A (en) * 1990-03-09 1993-08-24 Transicoil Inc. Resolver having planar windings
US6489899B1 (en) 1994-05-14 2002-12-03 Synaptics (Uk) Limited Position detector
US7030782B2 (en) 1994-05-14 2006-04-18 Synaptics (Uk) Limited Position detector
US6888538B2 (en) 1994-05-14 2005-05-03 Synaptics (Uk) Limited Position sensor
US20040169594A1 (en) * 1994-05-14 2004-09-02 Synaptics (Uk) Limited Position detector
US5939966A (en) * 1994-06-02 1999-08-17 Ricoh Company, Ltd. Inductor, transformer, and manufacturing method thereof
US6147584A (en) * 1994-06-02 2000-11-14 Ricoh Company, Ltd. Inductor, transformer, and manufacturing method thereof
WO1997019323A1 (fr) * 1995-11-23 1997-05-29 Scientific Generics Limited Codeur de positions
US6124708A (en) * 1995-11-23 2000-09-26 Absolute Sensors Limited Position detection using a spaced apart array of magnetic field generators and plural sensing loop circuits offset from one another in the measurement direction
US6788221B1 (en) 1996-06-28 2004-09-07 Synaptics (Uk) Limited Signal processing apparatus and method
US6980134B2 (en) 1996-06-28 2005-12-27 Synaptics (Uk) Limited Signal processing apparatus and method
US20030062889A1 (en) * 1996-12-12 2003-04-03 Synaptics (Uk) Limited Position detector
US6705511B1 (en) 1997-05-28 2004-03-16 Synaptics (Uk) Limited Transducer and method of manufacture
US6304014B1 (en) 1997-10-02 2001-10-16 Synaptics (Uk) Limited Motor control system
US6522128B1 (en) 1997-10-15 2003-02-18 Synaptics (Uk) Limited Position sensor having compact arrangement of coils
US6380749B1 (en) * 1998-02-26 2002-04-30 Metso Paper Automation Oy Apparatus for measuring properties of a moving paper web or cardboard web
US6534970B1 (en) 1998-05-22 2003-03-18 Synaptics (Uk) Limited Rotary position sensor and transducer for use therein
WO1999061868A1 (fr) * 1998-05-22 1999-12-02 Synaptics (Uk) Limited Detecteur de position
US20010006369A1 (en) * 1998-12-24 2001-07-05 Ely David T.E. Position sensor
US7019672B2 (en) 1998-12-24 2006-03-28 Synaptics (Uk) Limited Position sensor
US7016744B2 (en) 1999-12-10 2006-03-21 Scientific Generics Limited Man-machine interface
US20030229404A1 (en) * 1999-12-10 2003-12-11 Howard Mark A. Man-machine interface
US7511705B2 (en) 2001-05-21 2009-03-31 Synaptics (Uk) Limited Position sensor
US8243033B2 (en) 2001-05-21 2012-08-14 Synaptics (Uk) Limited Position sensor
US7196604B2 (en) 2001-05-30 2007-03-27 Tt Electronics Technology Limited Sensing apparatus and method
US20050035836A1 (en) * 2001-05-30 2005-02-17 Sensopad Technologies Limited Sensing apparatus and method
US7319319B2 (en) 2001-10-30 2008-01-15 Tt Electronics Technology Limited Sensing apparatus and method
US20050030010A1 (en) * 2001-10-30 2005-02-10 Jones Ross Peter Sensing apparatus and method
US7208945B2 (en) 2001-10-30 2007-04-24 Tt Electronics Technology Limited Sensing apparatus and method
US7406393B2 (en) 2002-03-05 2008-07-29 Synaptics (Uk) Limited Position sensor
US7907130B2 (en) 2002-06-05 2011-03-15 Synaptics (Uk) Limited Signal transfer method and apparatus
US20060119351A1 (en) * 2002-10-16 2006-06-08 Tt Electronics Technology Limited Sensing apparatus and method
US7298137B2 (en) 2002-10-16 2007-11-20 Tt Electronics Technology Limited Position sensing apparatus and method
US7514919B2 (en) 2002-10-16 2009-04-07 Tt Electronics Technology Limited Sensing apparatus and method
US20060125472A1 (en) * 2002-10-16 2006-06-15 Tt Electronics Technology Limited Position sensing apparatus and method
US7205775B2 (en) 2003-02-17 2007-04-17 Sensopad Limited Sensing apparatus and method
US20060244464A1 (en) * 2003-02-17 2006-11-02 Sensopad Limited Sensing apparatus and method
US7133793B2 (en) 2003-07-24 2006-11-07 Synaptics (Uk) Limited Magnetic calibration array
US7812268B2 (en) 2003-08-26 2010-10-12 Synaptics (Uk) Limited Digitizer system
US8022317B2 (en) 2003-08-26 2011-09-20 Synaptics (Uk) Limited Digitizer system
US20080204116A1 (en) * 2004-08-09 2008-08-28 Sensopad Limited Sensing Apparatus And Method
US8570028B2 (en) 2007-05-10 2013-10-29 Cambridge Integrated Circuits Limited Transducer for a position sensor
US9410791B2 (en) 2010-12-24 2016-08-09 Cambridge Integrated Circuits Limited Position sensing transducer
CN102769343A (zh) * 2011-05-02 2012-11-07 大隈株式会社 定子和旋转变压器
US20120280678A1 (en) * 2011-05-02 2012-11-08 Okuma Corporation Stator and resolver
US9136737B2 (en) * 2011-05-02 2015-09-15 Okuma Corporation Stator and resolver
CN102769343B (zh) * 2011-05-02 2016-08-03 大隈株式会社 定子和旋转变压器
US9470505B2 (en) 2012-06-13 2016-10-18 Cambridge Integrated Circuits Limited Position sensing transducer
CN114763981A (zh) * 2020-12-31 2022-07-19 株式会社三丰 感应式位置编码器的感测绕组配置

Also Published As

Publication number Publication date
DE2365519C2 (de) 1976-11-18
NO136061B (fr) 1977-04-04
AU4360672A (en) 1974-01-03
DE2303763A1 (de) 1973-09-27
NO136061C (no) 1977-07-13
GB1391669A (en) 1975-04-23
JPS493655A (fr) 1974-01-12
JPS5147544B2 (fr) 1976-12-15
CH564761A5 (fr) 1975-07-31
SE391613B (sv) 1977-02-21
AU469223B2 (en) 1976-02-05
DE2365519B1 (de) 1976-04-01
DE2303763B2 (de) 1976-01-02
IT959283B (it) 1973-11-10
FR2176326A5 (fr) 1973-10-26
CA987751A (en) 1976-04-20

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