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GB1489185A - Electro-magnetic transducer - Google Patents

Electro-magnetic transducer

Info

Publication number
GB1489185A
GB1489185A GB5205673A GB5205673A GB1489185A GB 1489185 A GB1489185 A GB 1489185A GB 5205673 A GB5205673 A GB 5205673A GB 5205673 A GB5205673 A GB 5205673A GB 1489185 A GB1489185 A GB 1489185A
Authority
GB
United Kingdom
Prior art keywords
parts
primary winding
former
iron
secured
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
GB5205673A
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.)
Dowty Boulton Paul Ltd
Original Assignee
Dowty Boulton Paul 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 Dowty Boulton Paul Ltd filed Critical Dowty Boulton Paul Ltd
Priority to GB5205673A priority Critical patent/GB1489185A/en
Publication of GB1489185A publication Critical patent/GB1489185A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B06GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06BMETHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/04Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism
    • B06B1/045Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with electromagnetism using vibrating magnet, armature or coil system

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Windings For Motors And Generators (AREA)

Abstract

1489185 Displacement transducers DOWTY BOULTON PAUL Ltd 30 Jan 1975 [9 Nov 1973] 52056/73 Heading G1N (A) [Also in Division H1] A transducer comprises a tubular former 1, a ferromagnetic armature 23 sliding within it, a pair of secondary windings 9, 11 of anodized aluminium wire, and a primary winding also of anodized aluminium wire comprising first parts 7, 8 and second parts 12, 13, the second parts contributing a predetermined resistance to the primary winding but little or no inductance to provide temperature compensation. The former 1, spacing washers 2, 3, 4 and end members 5, 6 are of titanium alloy coated with ceramic insulation. The armature 23 is of an alloy of 50% cobalt, 50% iron, or one of 45% nickel, 5% copper, and 50% iron and is carried by a non-magnetic rod 24. Parts 7, 8, 12, 13 of the primary winding are connected in series and connections 17 passing through insulated passages 14 are brazed to metallic conductors 18 which are secured by glass seals 19 in sealing member 16. From contacts 21 leads to an electrical supply enter a metallic tube 22 secured in end cover 25. An outer tubular cover 15 of titanium alloy is welded to members 6 and 16 hermetically sealing the windings. The second parts of the primary winding may alternatively be disposed between the former and the secondary windings.
GB5205673A 1975-01-30 1975-01-30 Electro-magnetic transducer Expired GB1489185A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5205673A GB1489185A (en) 1975-01-30 1975-01-30 Electro-magnetic transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5205673A GB1489185A (en) 1975-01-30 1975-01-30 Electro-magnetic transducer

Publications (1)

Publication Number Publication Date
GB1489185A true GB1489185A (en) 1977-10-19

Family

ID=10462477

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5205673A Expired GB1489185A (en) 1975-01-30 1975-01-30 Electro-magnetic transducer

Country Status (1)

Country Link
GB (1) GB1489185A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444924A1 (en) * 1978-12-19 1980-07-18 Sandretto Spa APPARATUS FOR DETERMINING THE POSITION OF A MOBILE MEMBER RELATING TO A FIXED SUPPORT
US4864232A (en) * 1988-03-07 1989-09-05 Sunpower, Inc. Temperature compensation for displacement transducer
GB2306665A (en) * 1995-10-16 1997-05-07 Toyoda Machine Works Ltd A differential transformer and a measuring device using the same
US5736854A (en) * 1994-03-21 1998-04-07 Tesa Sa Tubular coil unit of an inductive transducer for measuring displacements
EP1386073B1 (en) * 2001-04-24 2005-11-23 Robert Bosch Gmbh Fuel injection device for an internal combustion engine, comprising a magneto armature made of cobalt and iron
CN104240974A (en) * 2014-09-04 2014-12-24 燕山大学 Combined metal solid armature for electromagnetic emission and manufacturing method thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2444924A1 (en) * 1978-12-19 1980-07-18 Sandretto Spa APPARATUS FOR DETERMINING THE POSITION OF A MOBILE MEMBER RELATING TO A FIXED SUPPORT
US4864232A (en) * 1988-03-07 1989-09-05 Sunpower, Inc. Temperature compensation for displacement transducer
US5736854A (en) * 1994-03-21 1998-04-07 Tesa Sa Tubular coil unit of an inductive transducer for measuring displacements
GB2306665A (en) * 1995-10-16 1997-05-07 Toyoda Machine Works Ltd A differential transformer and a measuring device using the same
EP1386073B1 (en) * 2001-04-24 2005-11-23 Robert Bosch Gmbh Fuel injection device for an internal combustion engine, comprising a magneto armature made of cobalt and iron
CN104240974A (en) * 2014-09-04 2014-12-24 燕山大学 Combined metal solid armature for electromagnetic emission and manufacturing method thereof
CN104240974B (en) * 2014-09-04 2017-07-21 燕山大学 Electromagnetic Launching assembly metal solid armature and its manufacture method

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee