GB1532878A - Speed measuring apparatus - Google Patents

Speed measuring apparatus

Info

Publication number
GB1532878A
GB1532878A GB3792576A GB3792576A GB1532878A GB 1532878 A GB1532878 A GB 1532878A GB 3792576 A GB3792576 A GB 3792576A GB 3792576 A GB3792576 A GB 3792576A GB 1532878 A GB1532878 A GB 1532878A
Authority
GB
United Kingdom
Prior art keywords
poles
speed
measuring apparatus
sept
rotor
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
GB3792576A
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.)
Smiths Group PLC
Original Assignee
Smiths Group PLC
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 Smiths Group PLC filed Critical Smiths Group PLC
Priority to GB3792576A priority Critical patent/GB1532878A/en
Priority to FR7727488A priority patent/FR2364458A1/en
Priority to IT5100577A priority patent/IT1089889B/en
Priority to DE19772741140 priority patent/DE2741140A1/en
Publication of GB1532878A publication Critical patent/GB1532878A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
    • H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
    • H02K21/14—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures
    • H02K21/145—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets with magnets rotating within the armatures having an annular armature coil
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K2201/00—Specific aspects not provided for in the other groups of this subclass relating to the magnetic circuits
    • H02K2201/12—Transversal flux machines

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacture Of Motors, Generators (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

1532878 Measuring speed SMITHS INDUSTRIES Ltd 13 Sept 1977 [13 Sept 1976] 37925/76 Heading G1N A speed measuring apparatus has a rotor comprising a plurality of alternate North and South poles around its periphery, a stator having interdigitated poles 16, 17 and a coil 14 in which is induced a signal representative of the speed of rotation of the rotor. The stator poles 16, 17 are tapered towards their free ends, Fig. 2. The magnetic poles in the form of a magnet 24 are rotated by a shaft 19 through an annular metal body 26 and a sleeve 25, a sleeve 27 of sintered metal impregnated with silicone oil forming a bearing for the magnet assembly.
GB3792576A 1976-09-13 1976-09-13 Speed measuring apparatus Expired GB1532878A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB3792576A GB1532878A (en) 1976-09-13 1976-09-13 Speed measuring apparatus
FR7727488A FR2364458A1 (en) 1976-09-13 1977-09-12 SPEED INDICATOR
IT5100577A IT1089889B (en) 1976-09-13 1977-09-13 IMPROVEMENT IN SPEED MEASUREMENT DEVICES
DE19772741140 DE2741140A1 (en) 1976-09-13 1977-09-13 SPEEDOMETER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3792576A GB1532878A (en) 1976-09-13 1976-09-13 Speed measuring apparatus

Publications (1)

Publication Number Publication Date
GB1532878A true GB1532878A (en) 1978-11-22

Family

ID=10399985

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3792576A Expired GB1532878A (en) 1976-09-13 1976-09-13 Speed measuring apparatus

Country Status (4)

Country Link
DE (1) DE2741140A1 (en)
FR (1) FR2364458A1 (en)
GB (1) GB1532878A (en)
IT (1) IT1089889B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3523374C2 (en) * 1985-06-29 1994-03-24 Teves Gmbh Alfred Sensor for an inductive speed measuring device

Also Published As

Publication number Publication date
IT1089889B (en) 1985-06-18
DE2741140A1 (en) 1978-03-16
FR2364458A1 (en) 1978-04-07

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee