JPS5720166A - Position detector for linear pulse motor - Google Patents

Position detector for linear pulse motor

Info

Publication number
JPS5720166A
JPS5720166A JP9168480A JP9168480A JPS5720166A JP S5720166 A JPS5720166 A JP S5720166A JP 9168480 A JP9168480 A JP 9168480A JP 9168480 A JP9168480 A JP 9168480A JP S5720166 A JPS5720166 A JP S5720166A
Authority
JP
Japan
Prior art keywords
magnetic material
leg parts
legs
detecting
detecting coils
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.)
Pending
Application number
JP9168480A
Other languages
Japanese (ja)
Inventor
Katsuhide Tanoshima
Masaharu Hokari
Kazuaki Uemura
Naoji Akutsu
Kenji Iwata
Masami Ujiie
Hiroshi Sakai
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.)
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
Original Assignee
Nippon Telegraph and Telephone Corp
Oki Electric Industry Co Ltd
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 Nippon Telegraph and Telephone Corp, Oki Electric Industry Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP9168480A priority Critical patent/JPS5720166A/en
Publication of JPS5720166A publication Critical patent/JPS5720166A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K41/00—Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path
    • H02K41/02—Linear motors; Sectional motors
    • H02K41/03—Synchronous motors; Motors moving step by step; Reluctance motors

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Electromagnetism (AREA)
  • Power Engineering (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
  • Linear Motors (AREA)

Abstract

PURPOSE:To enable the position of a linear pulse motor to be detected with a single magnetic material and reduce the number of assembling processes and the material cost, by separating the leg parts of the magnetic material from each other by a given pitch with respect to the stator teeth in the moving direction, and detecting the difference between the magnetic fluxes passing through the respective detecting coils from both leg parts. CONSTITUTION:Exciting coils 7a and 7b are wound on legs 6a and 6b of a magnetic material 6 in the same winding direction, and detecting coils 8 are wound on the central part of the magnetic material 6, the legs 6a and 6b being separated from each other by 1/2 pitch in the moving direction. Moreover, the magnetic material 6 has a central leg 6c between the legs 6a and 6b. When the magnetic material 6 moves with a rotor, and the leg parts face to a tooth, a current or voltage is induced in the detecting coils 8 by means of the magnetic fluxes passing through the respective leg parts. Thus, the value of the current or voltage induced in the detecting coils 8 is made proportional to the difference between the respective magnetic fluxes. Accordingly, said value varies according to the relative position between the leg parts 6a and 6b and a tooth 4a and changes in the sine-wave shape with the movement of the rotor.
JP9168480A 1980-07-07 1980-07-07 Position detector for linear pulse motor Pending JPS5720166A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9168480A JPS5720166A (en) 1980-07-07 1980-07-07 Position detector for linear pulse motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9168480A JPS5720166A (en) 1980-07-07 1980-07-07 Position detector for linear pulse motor

Publications (1)

Publication Number Publication Date
JPS5720166A true JPS5720166A (en) 1982-02-02

Family

ID=14033319

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9168480A Pending JPS5720166A (en) 1980-07-07 1980-07-07 Position detector for linear pulse motor

Country Status (1)

Country Link
JP (1) JPS5720166A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187603A (en) * 1985-02-15 1986-08-21 Yaskawa Electric Mfg Co Ltd Linear resolver
JPS61211116A (en) * 1985-03-14 1986-09-19 Nissan Shatai Co Ltd Air conditioner for buses
JPH02150701A (en) * 1988-12-01 1990-06-11 Smc Corp Piston position detecting device
JP2009284583A (en) * 2008-05-20 2009-12-03 Yokogawa Electric Corp Positioning apparatus
JP2011163832A (en) * 2010-02-05 2011-08-25 Nidec Sankyo Corp Magnetic sensor device
WO2023122258A3 (en) * 2021-12-24 2023-07-27 Hyperloop Technologies, Inc. Topologies to reduce force ripple for propulsion motors

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61187603A (en) * 1985-02-15 1986-08-21 Yaskawa Electric Mfg Co Ltd Linear resolver
JPS61211116A (en) * 1985-03-14 1986-09-19 Nissan Shatai Co Ltd Air conditioner for buses
JPH0144523B2 (en) * 1985-03-14 1989-09-28 Nissan Shatai Co
JPH02150701A (en) * 1988-12-01 1990-06-11 Smc Corp Piston position detecting device
JP2009284583A (en) * 2008-05-20 2009-12-03 Yokogawa Electric Corp Positioning apparatus
JP2011163832A (en) * 2010-02-05 2011-08-25 Nidec Sankyo Corp Magnetic sensor device
WO2023122258A3 (en) * 2021-12-24 2023-07-27 Hyperloop Technologies, Inc. Topologies to reduce force ripple for propulsion motors

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