GB814617A - Improvements in or relating to position sensing devices - Google Patents

Improvements in or relating to position sensing devices

Info

Publication number
GB814617A
GB814617A GB3082/56A GB308256A GB814617A GB 814617 A GB814617 A GB 814617A GB 3082/56 A GB3082/56 A GB 3082/56A GB 308256 A GB308256 A GB 308256A GB 814617 A GB814617 A GB 814617A
Authority
GB
United Kingdom
Prior art keywords
stator
rotor
mutual inductance
conductive
helical
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
GB3082/56A
Inventor
Dennis James Mynall
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
Filing date
Publication date
Application filed by British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB814617A publication Critical patent/GB814617A/en
Expired legal-status Critical Current

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
    • G01D5/20—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
    • G01D5/2086—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 two or more coils with respect to two or more other coils
    • 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
    • G01D5/2006—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 self-induction of one or more coils
    • G01D5/202—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 self-induction of one or more coils by movable a non-ferromagnetic conductive element

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

814,617. Transformers. BRITISH THOMSON-HOUSTON CO. Ltd. Jan. 31, 1957 [Jan. 31, 1956], No. 3082/56. Class 38 (2). [Also in Group XXXVIII] Apparatus for determining the position of a tool relative to a workpiece comprises a cylindrical stator with a helical conductive winding on its external surface, surrounded by a coaxial hollow cylindrical rotor having a similar helical conducting winding on its internal surface, the mutual inductance between the windings being cyclically variable with relative axial movement, so that the instantaneous relative position can be determined by the instantaneous value of the mutual inductance. As shown, the stator 10 (Fig. 2) has on its outer surface two interlaced conductive helical paths 12, 13 connected together at one end by a wire 14 whereby any current flow would be in opposite directions in adjacent turns. The rotor 11 (Fig. 3) is similarly supplied with two interlaced conductive helical paths 15a, 15b on its inner surface, so that when the rotor 11 moves axially over the stator the mutual inductance follows a sinusoidal variation. A second conductive path, displaced by 90 degrees, may be added to the stator 10 and/or the rotor 11 to produce a cosine variation of mutual inductance. The rotor 11 may be a halfcylinder, the interconnection between turns being made on the outer surface, or by short connecting links between adjacent half-turns. The members 10, 11 may be other than circular cylinders, e.g. oval, and the axis may be other than rectilinear, e.g. curved to determine angular displacement. Relative angular rotation between the stator about a rectilinear axis can also be measured. The members 10, 11 may be insulating material, or ferromagnetic material, and the conductive paths may be printed or consist of strips or wires located in grooves.
GB3082/56A 1956-01-31 Improvements in or relating to position sensing devices Expired GB814617A (en)

Publications (1)

Publication Number Publication Date
GB814617A true GB814617A (en) 1959-06-10

Family

ID=1627574

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3082/56A Expired GB814617A (en) 1956-01-31 Improvements in or relating to position sensing devices

Country Status (1)

Country Link
GB (1) GB814617A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151789A (en) * 1983-12-16 1985-07-24 Atomic Energy Authority Uk Transducers for providing an electrical signal representative of physical movement

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2151789A (en) * 1983-12-16 1985-07-24 Atomic Energy Authority Uk Transducers for providing an electrical signal representative of physical movement

Similar Documents

Publication Publication Date Title
US3439256A (en) Inductive angular position transmitter
US2942212A (en) Position sensing devices
GB1458296A (en)
US4445103A (en) Rotary differential transformer with constant amplitude and variable phase output
US6288535B1 (en) Hall effect, shaft angular position sensor with asymmetrical rotor
US3882436A (en) Differential transformer
US3148292A (en) Linear eddy-current electromagnetic actuator
US6617712B1 (en) Linear position transducer with primary and secondary windings and a movable induction coupling element
US4551699A (en) Rotary variable differential transformer
GB814617A (en) Improvements in or relating to position sensing devices
US4347491A (en) Rotary variable differential transformer with substantially linear output
CN109698594A (en) The linear half-wave axial magnetic circuit VR Two Speed Resolver of rotor
CN109617354A (en) Rotor half-sinusoid axial magnetic circuit VR Two Speed Resolver
GB869899A (en) Improvements in electrical measuring devices
GB855637A (en) Electromechanical transducer
SU1679177A1 (en) Transformer-type linear and angular displacement transducer
DE3767368D1 (en) ENCODER.
SU634083A2 (en) Touch-free eddy-current sensor
RU2062975C1 (en) Transforming converter of large angular movements and small linear movements
GB840099A (en) Variable coupling transformer devices
SU1182586A1 (en) Static voltage regulator
US3142810A (en) Position measuring device
JPS5339404A (en) Stator for rotary machine
SU477436A1 (en) Multi-turn sensor transformer type
SU773644A1 (en) Functional converter of angular displacements