GB775432A - Improvements in or relating to magneto-strictive resonators - Google Patents

Improvements in or relating to magneto-strictive resonators

Info

Publication number
GB775432A
GB775432A GB18483/54A GB1848354A GB775432A GB 775432 A GB775432 A GB 775432A GB 18483/54 A GB18483/54 A GB 18483/54A GB 1848354 A GB1848354 A GB 1848354A GB 775432 A GB775432 A GB 775432A
Authority
GB
United Kingdom
Prior art keywords
cylinder
wire
bead
ferroxcube
june
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
GB18483/54A
Inventor
William Oliver Agar
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB18483/54A priority Critical patent/GB775432A/en
Priority to US516813A priority patent/US2895113A/en
Publication of GB775432A publication Critical patent/GB775432A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
    • H03H9/46—Filters
    • H03H9/62—Filters comprising resonators of magnetostrictive material

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

775,432. Electromechanical filters. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. June 3, 1955 [June 23, 1954], No. 18483/54. Class 40 (8). An electromechanical filter comprises a circumferentially-polarized cylinder 1 of magnetostrictive ceramic material, e.g. " ferroxcube," supported upon an axial wire 2 for vibration in a torsional mode. The cylinder is carried from the wire by means of a borate bead 3 fused to both members, the area of contact between the bead and the cylinder being kept as small as possible. In order to key the bead firmly to the wire a few turns of fine copper wire may be wound upon it. Instead, the wire may be thickened or a short sleeve provided. The cylinder is surrounded by a glass envelope 7 which also encloses annular plugs 5, 6 of non- magnetostrictive " ferroxcube "material. These plugs ensure constant coupling conditions between the coil 10 and the cylinder 1 irrespective of the resonant frequency of the cylinder. The coil 10 comprises an input winding and an output winding having considerably more turns than the input winding. Circumferential polarization of the cylinder 1 is achieved by passing a current pulse along the wire 2.
GB18483/54A 1954-06-23 1954-06-23 Improvements in or relating to magneto-strictive resonators Expired GB775432A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB18483/54A GB775432A (en) 1954-06-23 1954-06-23 Improvements in or relating to magneto-strictive resonators
US516813A US2895113A (en) 1954-06-23 1955-06-21 Magneto-strictive resonators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18483/54A GB775432A (en) 1954-06-23 1954-06-23 Improvements in or relating to magneto-strictive resonators

Publications (1)

Publication Number Publication Date
GB775432A true GB775432A (en) 1957-05-22

Family

ID=10113203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18483/54A Expired GB775432A (en) 1954-06-23 1954-06-23 Improvements in or relating to magneto-strictive resonators

Country Status (2)

Country Link
US (1) US2895113A (en)
GB (1) GB775432A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105905618A (en) * 2016-04-28 2016-08-31 太原科技大学 Magnetostrictive snakelike moving conveyer and conveying method thereof
CN105974112A (en) * 2016-04-28 2016-09-28 太原科技大学 Mobile controllable wireless passive magnetostrictive micro detector and detection method thereof

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3105208A (en) * 1957-09-03 1963-09-24 Murata Manufacturing Co Mechanical filter
US3044028A (en) * 1958-04-23 1962-07-10 Harris Transducer Corp Magnetic circuit element transducer
US3051916A (en) * 1959-02-04 1962-08-28 Itt Electromechanical delay device
US3078426A (en) * 1959-03-20 1963-02-19 Raytheon Co Magnetostrictive filter apparatus having multiple magnetostrictive rods stacked in parallel
DE1255972B (en) * 1962-02-21 1967-12-07 Telefunken Patent Torsionally oscillating magnetostrictive transducer
DE1280348B (en) * 1963-12-11 1968-10-17 Telefunken Patent Method for contacting the inner electrode supply of hollow cylindrical transducers

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1997599A (en) * 1932-07-19 1935-04-16 Pierce George Washington Electric filter
US1966446A (en) * 1933-02-14 1934-07-17 Harvey C Hayes Impact tool
US2435487A (en) * 1943-02-01 1948-02-03 Zenith Radio Corp Electromechanical vibrator
US2472388A (en) * 1944-01-15 1949-06-07 Albert L Thuras Magnetostrictive oscillator
US2736824A (en) * 1950-12-21 1956-02-28 Rca Corp Magnetostrictive ferrites
NL162357B (en) * 1951-07-02 Basf Ag PROCESS FOR THE PREPARATION OF ALDEHYDEN AND ALCOHOLS BY THE OXO PROCESS.
US2709243A (en) * 1952-05-16 1955-05-24 Collins Radio Co Drive system for mechanical filter
US2770782A (en) * 1952-08-30 1956-11-13 Rca Corp Frequency selective coupling system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105905618A (en) * 2016-04-28 2016-08-31 太原科技大学 Magnetostrictive snakelike moving conveyer and conveying method thereof
CN105974112A (en) * 2016-04-28 2016-09-28 太原科技大学 Mobile controllable wireless passive magnetostrictive micro detector and detection method thereof

Also Published As

Publication number Publication date
US2895113A (en) 1959-07-14

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