GB1485524A - Electric motors - Google Patents

Electric motors

Info

Publication number
GB1485524A
GB1485524A GB44541/74A GB4454174A GB1485524A GB 1485524 A GB1485524 A GB 1485524A GB 44541/74 A GB44541/74 A GB 44541/74A GB 4454174 A GB4454174 A GB 4454174A GB 1485524 A GB1485524 A GB 1485524A
Authority
GB
United Kingdom
Prior art keywords
armature
assembly
speed
coils
oct
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
GB44541/74A
Other languages
English (en)
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Priority claimed from JP12088173A external-priority patent/JPS549681B2/ja
Priority claimed from JP49055875A external-priority patent/JPS5749868B2/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of GB1485524A publication Critical patent/GB1485524A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K23/00—DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors
    • H02K23/66—Structural association with auxiliary electric devices influencing the characteristic of, or controlling, the machine, e.g. with impedances or switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
    • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
    • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
    • G01R31/343—Testing dynamo-electric machines in operation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc Machiner (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
GB44541/74A 1973-10-26 1974-10-15 Electric motors Expired GB1485524A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP12088173A JPS549681B2 (enExample) 1973-10-26 1973-10-26
JP49055875A JPS5749868B2 (enExample) 1974-05-17 1974-05-17

Publications (1)

Publication Number Publication Date
GB1485524A true GB1485524A (en) 1977-09-14

Family

ID=26396778

Family Applications (1)

Application Number Title Priority Date Filing Date
GB44541/74A Expired GB1485524A (en) 1973-10-26 1974-10-15 Electric motors

Country Status (7)

Country Link
US (1) US3967200A (enExample)
CA (1) CA1054237A (enExample)
DE (1) DE2450885C3 (enExample)
FR (1) FR2249337B1 (enExample)
GB (1) GB1485524A (enExample)
IT (1) IT1025165B (enExample)
NL (1) NL177044C (enExample)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916819A1 (de) * 1978-05-12 1979-11-15 Sp Pk I T Bjuro Malych Elektri Vibrationsmotor
US6861775B2 (en) 2001-12-18 2005-03-01 Johnson Electric S.A. Electric motor
GB2460529A (en) * 2008-06-03 2009-12-09 Bosch Gmbh Robert Stray flux conducting element for rotor position recognition

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4082968A (en) * 1976-11-23 1978-04-04 Contraves-Goerz Corporation Speed detector for use on a dc motor
IT1163681B (it) * 1979-06-28 1987-04-08 Star Utensili Elett Generatrice tachimetrica
FR2460483A1 (fr) * 1979-07-04 1981-01-23 Artus Sa Moteur a courant continu muni d'un dispositif de mesure de la vitesse de deplacement de son element mobile
DE2934085A1 (de) * 1979-08-23 1981-03-26 Papst Licensing Gmbh, 78549 Spaichingen Tachogenerator
USRE38673E1 (en) 1980-05-10 2004-12-21 Papst Licensing Gmbh & Co. Kg Disk storage device having a hub sealing member feature
USRE38662E1 (en) 1980-05-10 2004-11-30 Papst Licensing Gmbh & Co. Kg Disk storage device having a sealed bearing tube
USRE37058E1 (en) 1980-05-10 2001-02-20 Papst Licensing Gmbh & Co. Kg Disk storage device having contamination seals
USRE38601E1 (en) 1980-05-10 2004-09-28 Papst Licensing, GmbH & Co. KG Disk storage device having a radial magnetic yoke feature
JPS57108674U (enExample) 1980-12-22 1982-07-05
USRE38772E1 (en) 1981-03-18 2005-08-09 Papst Licensing Gmbh & Co. Kg Disk storage device having an undercut hub member
US4567407A (en) * 1982-06-25 1986-01-28 Ecklin John W Biased unitized motor alternator with stationary armature and field
US4853575A (en) * 1984-08-31 1989-08-01 Black & Decker Inc. Tachometer generator
JPH0713420Y2 (ja) * 1988-05-11 1995-03-29 マブチモーター株式会社 周波数発電機をそなえた小型モータ
JPH069579Y2 (ja) * 1989-09-11 1994-03-09 マブチモーター株式会社 周波数発電機付き小型モータ
JPH083184Y2 (ja) * 1990-04-11 1996-01-29 三菱電機株式会社 回転速度検出器付直流電動機
FR2691854B1 (fr) * 1992-05-27 1996-09-06 Sextant Avionique Moteur a courant continu a rotor bobine et a capteur de position angulaire integre.
JPH06339252A (ja) * 1993-05-27 1994-12-06 Mabuchi Motor Co Ltd 小型直流モータの回転検出装置
EP1180847B1 (en) * 2000-08-19 2006-03-01 Johnson Electric S.A. Electric motor
GB0130150D0 (en) * 2001-12-18 2002-02-06 Johnson Electric Sa Method of measuring motor speed
GB0130149D0 (en) * 2001-12-18 2002-02-06 Johnson Electric Sa Electric motor
DE10218881A1 (de) * 2002-04-26 2003-11-06 Valeo Motoren & Aktuatoren Verfahren und Einrichtung zur Bestimmung der Drehzahl und/oder Drehrichtung und/oder Position der Welle eines Elektromotors

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2814745A (en) * 1955-10-31 1957-11-26 Hughes Aircraft Co High frequency alternator
GB929919A (en) * 1960-10-20 1963-06-26 Bendix Corp Tachometer
US3077760A (en) * 1960-11-18 1963-02-19 Northrop Corp Self-testing gyroscope
US3158033A (en) * 1961-11-24 1964-11-24 Gen Precision Inc Spin motor monitor including a variable reluctance type pickup
GB1180588A (en) * 1967-03-22 1970-02-04 Yamata Iron & Steel Co Ltd Apparatus for Measuring Pulses Produced in Rotary Electric Machines
US3466477A (en) * 1967-06-07 1969-09-09 Gen Motors Corp Induction motor speed sensing apparatus
DE1763294B2 (de) * 1968-04-30 1976-05-13 N.V. Philips' Gloeilampenfabrieken, Eindhoven (Niederlande) Anordnung zur bildung einer drehzahlproportionalen spannung
US3504208A (en) * 1968-06-17 1970-03-31 Sun Electric Corp Magnetic tachometer generator
DE2132783B2 (de) * 1971-07-01 1972-10-05 Siemens Ag Anordnung zur erzeugung des taktes fuer die aufzeichnung von digitaler information auf einem datentraeger, insbesondere einem magnetband
DE2165087B2 (de) * 1971-12-28 1974-01-10 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Induktiver Drehzahlgeber

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2916819A1 (de) * 1978-05-12 1979-11-15 Sp Pk I T Bjuro Malych Elektri Vibrationsmotor
US6861775B2 (en) 2001-12-18 2005-03-01 Johnson Electric S.A. Electric motor
GB2460529A (en) * 2008-06-03 2009-12-09 Bosch Gmbh Robert Stray flux conducting element for rotor position recognition
GB2460529B (en) * 2008-06-03 2010-09-22 Bosch Gmbh Robert Rotor position recognition

Also Published As

Publication number Publication date
DE2450885A1 (de) 1975-05-07
NL7413956A (nl) 1975-04-29
FR2249337A1 (enExample) 1975-05-23
IT1025165B (it) 1978-08-10
FR2249337B1 (enExample) 1977-03-18
US3967200A (en) 1976-06-29
DE2450885C3 (de) 1985-11-21
NL177044C (nl) 1985-07-16
CA1054237A (en) 1979-05-08
DE2450885B2 (de) 1979-03-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19921015