CA987751A - Position-measuring transformer - Google Patents

Position-measuring transformer

Info

Publication number
CA987751A
CA987751A CA154,110A CA154110A CA987751A CA 987751 A CA987751 A CA 987751A CA 154110 A CA154110 A CA 154110A CA 987751 A CA987751 A CA 987751A
Authority
CA
Canada
Prior art keywords
measuring transformer
transformer
measuring
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
Application number
CA154,110A
Other versions
CA154110S (en
Inventor
Clair L. Farrand
Vincent F. 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 CA987751A publication Critical patent/CA987751A/en
Expired legal-status Critical Current

Links

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)
CA154,110A 1972-03-15 1972-10-11 Position-measuring transformer Expired CA987751A (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
CA987751A true CA987751A (en) 1976-04-20

Family

ID=22882847

Family Applications (1)

Application Number Title Priority Date Filing Date
CA154,110A Expired CA987751A (en) 1972-03-15 1972-10-11 Position-measuring transformer

Country Status (11)

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

Families Citing this family (43)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2202624A5 (en) * 1972-10-10 1974-05-03 Honeywell Bull Soc Ind
NL7305172A (en) * 1973-04-13 1974-10-15
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
WO1979000383A1 (en) * 1977-12-13 1979-06-28 Fujitsu Ltd Thin-film coil producing method
CA1177127A (en) * 1980-11-14 1984-10-30 William H. Morong, Iii Miniaturized transformer construction
JPS58144107U (en) * 1982-03-24 1983-09-28 渡辺パイプ株式会社 Connecting device for aggregate assembly
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 (en) * 1987-06-15 1991-01-09 Kollmorgen Corporation Printed circuit windings for screened inductance sensors, especially sensors for level measurement
US4918418A (en) * 1988-08-04 1990-04-17 Caterpillar Inc. Inductive coil structure with electrical return path
DE4003902A1 (en) * 1990-02-09 1991-08-14 Bosch Gmbh Robert POSITIONER
US5239288A (en) * 1990-03-09 1993-08-24 Transicoil Inc. Resolver having planar windings
WO2000033244A2 (en) 1998-11-27 2000-06-08 Synaptics (Uk) Limited Position sensor
US20030062889A1 (en) * 1996-12-12 2003-04-03 Synaptics (Uk) Limited Position detector
US6249234B1 (en) 1994-05-14 2001-06-19 Absolute Sensors Limited Position detector
US5939966A (en) * 1994-06-02 1999-08-17 Ricoh Company, Ltd. Inductor, transformer, and manufacturing method thereof
GB9523991D0 (en) * 1995-11-23 1996-01-24 Scient Generics Ltd Position encoder
US6788221B1 (en) 1996-06-28 2004-09-07 Synaptics (Uk) Limited Signal processing apparatus and method
DE69832274T2 (en) 1997-05-28 2006-08-03 Synaptics (Uk) Ltd., Harston METHOD AND WIREBOND DEVICE FOR PRODUCING A TRANSDUCER
GB9720954D0 (en) 1997-10-02 1997-12-03 Scient Generics Ltd Commutators for motors
GB9721891D0 (en) 1997-10-15 1997-12-17 Scient Generics Ltd Symmetrically connected spiral transducer
FI103919B (en) * 1998-02-26 1999-10-15 Metso Paper Automation Oy Device for measuring the characteristics of a moving paper or cardboard web
GB9811151D0 (en) * 1998-05-22 1998-07-22 Scient Generics Ltd Rotary encoder
US7019672B2 (en) * 1998-12-24 2006-03-28 Synaptics (Uk) Limited Position sensor
AU2195101A (en) * 1999-12-10 2001-06-18 Gentech Investment Group Ag Man-machine interface
EP1412912B1 (en) 2001-05-21 2008-06-18 Synaptics (UK) Limited Position sensor
GB0126014D0 (en) * 2001-10-30 2001-12-19 Sensopad Technologies Ltd Modulated field position sensor
US7196604B2 (en) * 2001-05-30 2007-03-27 Tt Electronics Technology Limited Sensing apparatus and method
GB2403017A (en) 2002-03-05 2004-12-22 Synaptics Position sensor
US7907130B2 (en) 2002-06-05 2011-03-15 Synaptics (Uk) Limited Signal transfer method and apparatus
GB2394293A (en) * 2002-10-16 2004-04-21 Gentech Invest Group Ag Inductive sensing apparatus and method
EP1552249A2 (en) * 2002-10-16 2005-07-13 TT Electronics Technology Limited Position sensing apparatus and method
GB0303627D0 (en) * 2003-02-17 2003-03-19 Sensopad Technologies Ltd Sensing method and apparatus
GB0317370D0 (en) 2003-07-24 2003-08-27 Synaptics Uk Ltd Magnetic calibration array
GB0319945D0 (en) 2003-08-26 2003-09-24 Synaptics Uk Ltd Inductive sensing system
JP2008509418A (en) * 2004-08-09 2008-03-27 センソパッド リミテッド Detection apparatus and detection method
US8570028B2 (en) 2007-05-10 2013-10-29 Cambridge Integrated Circuits Limited Transducer for a position sensor
GB2488389C (en) 2010-12-24 2018-08-22 Cambridge Integrated Circuits Ltd Position sensing transducer
JP5802429B2 (en) * 2011-05-02 2015-10-28 オークマ株式会社 Stator and resolver
GB2503006B (en) 2012-06-13 2017-08-09 Cambridge Integrated Circuits Ltd Position sensing transducer
US20220205815A1 (en) * 2020-12-31 2022-06-30 Mitutoyo Corporation Sensing winding configuration for inductive position encoder

Family Cites Families (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
GB1233546A (en) * 1965-07-30 1971-05-26
GB1157805A (en) * 1965-07-30 1969-07-09 Emi Ltd Improvements in or relating to Circuit Elements especially for use as 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

Also Published As

Publication number Publication date
JPS5147544B2 (en) 1976-12-15
GB1391669A (en) 1975-04-23
NO136061C (en) 1977-07-13
AU4360672A (en) 1974-01-03
DE2365519C2 (en) 1976-11-18
FR2176326A5 (en) 1973-10-26
DE2303763B2 (en) 1976-01-02
DE2303763A1 (en) 1973-09-27
NO136061B (en) 1977-04-04
CH564761A5 (en) 1975-07-31
US3772587A (en) 1973-11-13
SE391613B (en) 1977-02-21
JPS493655A (en) 1974-01-12
AU469223B2 (en) 1976-02-05
IT959283B (en) 1973-11-10
DE2365519B1 (en) 1976-04-01

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