GB402831A - Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices - Google Patents

Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices

Info

Publication number
GB402831A
GB402831A GB1647632A GB1647632A GB402831A GB 402831 A GB402831 A GB 402831A GB 1647632 A GB1647632 A GB 1647632A GB 1647632 A GB1647632 A GB 1647632A GB 402831 A GB402831 A GB 402831A
Authority
GB
United Kingdom
Prior art keywords
ring
pressure wave
magnetostrictive
winding
magnetic flux
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
GB1647632A
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.)
MARCONI INTERNAT MARINE COMM C
Original Assignee
MARCONI INTERNAT MARINE COMM C
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 MARCONI INTERNAT MARINE COMM C filed Critical MARCONI INTERNAT MARINE COMM C
Priority to GB1647632A priority Critical patent/GB402831A/en
Publication of GB402831A publication Critical patent/GB402831A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
    • B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
    • B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
    • B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
    • B06B1/08—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with magnetostriction

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

402,831. Sound receiving and transmitting devices. MARCONI INTERNATIONAL MARINE COMMUNICATION CO., Ltd., Marconi House, Strand, and HINTON, N. P., 57, Broughton Avenue, Finchley, both in London. June 10, 1932, No. 16476. [Class 40 (iv).] A pressure wave transmitter and /or receiver suitable for use in echo sounding, subaqueous signalling systems and for detecting underwater bodies, such as icebergs, comprises a magnetostrictive body closed upon itself and a subsidiary magnetic member of low reluctance associated therewith and so arranged that a plurality of parallel paths for magnetic flux are provided within the body and through the member. Fig. 1 shows a straight bar Y of high permeability material surrounded by a winding L arranged within a magnetostrictive body M, which is shown as a hollow rectangle but may take the form of a ring, so as to leave a small air gap at each end of the bar, the paths taken by the magnetic flux being indicated by dotted lines. In the modification, Fig. 3, a cross-shaped yoke member Y having the winding L distributed as shown over the four limbs thereof is arranged within the magnetostrictive ring M. According to a further modification, Fig. 4, the yoke Y is arranged externally of the ring M and is provided with radially extending pole pieces Y'. In the Fig. 3 construction radiation takes place mainly from the outer surface of ring M and in the Fig. 4 construction mainly from the inner surface thereof. Specifications 402,123, 402,828, and 402,829 are referred to.
GB1647632A 1932-06-10 1932-06-10 Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices Expired GB402831A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1647632A GB402831A (en) 1932-06-10 1932-06-10 Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1647632A GB402831A (en) 1932-06-10 1932-06-10 Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices

Publications (1)

Publication Number Publication Date
GB402831A true GB402831A (en) 1933-12-11

Family

ID=10078025

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1647632A Expired GB402831A (en) 1932-06-10 1932-06-10 Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices

Country Status (1)

Country Link
GB (1) GB402831A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468837A (en) * 1945-08-02 1949-05-03 Bell Telephone Labor Inc Magnetostrictive transducer
FR2569930A1 (en) * 1984-08-28 1986-03-07 Commissariat Energie Atomique Omnidirectional elastic wave transducer with a wide passband and method of manufacture
EP0177383A1 (en) * 1984-08-28 1986-04-09 Commissariat A L'energie Atomique Broadband omnidirectional elastic wave transducer and method of manufacturing it

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468837A (en) * 1945-08-02 1949-05-03 Bell Telephone Labor Inc Magnetostrictive transducer
FR2569930A1 (en) * 1984-08-28 1986-03-07 Commissariat Energie Atomique Omnidirectional elastic wave transducer with a wide passband and method of manufacture
EP0177383A1 (en) * 1984-08-28 1986-04-09 Commissariat A L'energie Atomique Broadband omnidirectional elastic wave transducer and method of manufacturing it
US4782471A (en) * 1984-08-28 1988-11-01 Commissariat A L'energie Atomique Omnidirectional transducer of elastic waves with a wide pass band and production process

Similar Documents

Publication Publication Date Title
WO2006085030A3 (en) Signalling and localization device for an individual in the sea and method for use thereof
US2397107A (en) Sound propagating apparatus
GB402831A (en) Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices
GB145691A (en) Improvements relating to the emission and reception of submarine waves
GB402123A (en) Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices
GB411312A (en) Improvements relating to the emission or reception of radio or like signals by a submerged craft
SE0201872D0 (en) Towing transmitters and ways to produce one
GB402829A (en) Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices
GB402830A (en) Improvements in or relating to pressure wave transmitters and receivers incorporating magneto-strictive devices
US2016906A (en) Sound wave apparatus
JPS5339771A (en) Water pressure resisting transmitter and receelver
GB156521A (en) Transmitting arrangement for submarine sound signals
US10547922B2 (en) Solar speaker self-adjusting control system
JPS5621498A (en) Wireless earphone unit
GB453512A (en) Improvements in or relating to submarine pressure-wave transmitting and receiving apparatus
WO2000058747A3 (en) Underwater communication method, device, and system utilizing a doppler frequency shift
GB191302185A (en) Receiver for Submarine Signalling.
GB833892A (en) Improvements in or relating to echo sounders
GB268055A (en) Improvements in secret signalling
US1377940A (en) Sound-concentrator for telephone-transmitters
Bullard The application of radio to navigation problems
Marconi THE PRACTICABILITY OF WIRELESS TELEGRAPHY.
GB417196A (en) Improvements in or relating to wireless direction finding systems
GB472214A (en) Improvements in or relating to modulated carrier wave systems
MURRY et al. Intersubmarine speech intelligibility levels(Standard transmitting and receiving units for intersubmarine speech intelligibility levels)[Interim Report]