GB148412A - Improvements in sound-producing or receiving devices containing two or more vibratory structures - Google Patents

Improvements in sound-producing or receiving devices containing two or more vibratory structures

Info

Publication number
GB148412A
GB148412A GB20357/20A GB2035720A GB148412A GB 148412 A GB148412 A GB 148412A GB 20357/20 A GB20357/20 A GB 20357/20A GB 2035720 A GB2035720 A GB 2035720A GB 148412 A GB148412 A GB 148412A
Authority
GB
United Kingdom
Prior art keywords
sound
diaphragm
masses
vibratory
mass
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
GB20357/20A
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.)
Signal GmbH
Original Assignee
Signal GmbH
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 Signal GmbH filed Critical Signal GmbH
Publication of GB148412A publication Critical patent/GB148412A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)

Abstract

148,412. Signal Ges. June 5, 1917, [Convention date]. Addition to 147,937. Subaqueous audible signals.-In devices for receiving and producing sound, particularly for subaqueous use, having two vibratory systems coupled together so as to interact as described in the parent Specification, one of the two resonant frequencies of the device is more than twice as high as the other. As described, each vibratory system comprises two masses connected by a diaphragm, for which,. however, elastic bodies such as reeds, strings, or springs may be substituted. Masses m, m<1> connected by a diaphragm e<1> form one vibratory system, masses m, m<2> and diaphragm e2 forming the other. m<1> constitutes a casing for the apparatus, and is large compared with the other means. m is common to the two systems, and, as shown, constitutes the armature of an electro-magnet formed by the mass m<2> and coils s. In another form described for reception of sound, the mass m<2> forms part of a microphone. In manufacture, each system is independently tuned to the required frequency, an equivalent mass being used in substitution for the other system. The microphone used may be of single-contact type, having contact between steel and galena.
GB20357/20A 1916-02-29 1920-07-10 Improvements in sound-producing or receiving devices containing two or more vibratory structures Expired GB148412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1610674X 1916-02-29

Publications (1)

Publication Number Publication Date
GB148412A true GB148412A (en) 1921-10-10

Family

ID=7737107

Family Applications (3)

Application Number Title Priority Date Filing Date
GB19992/20A Expired GB147937A (en) 1916-02-29 1920-07-09 Improvements in sound-producing or receiving devices containing two or more vibratory structures
GB20359/20A Expired GB148414A (en) 1916-02-29 1920-07-10 Improvements in sound producing or receiving devices containing two or more vibratory structures
GB20357/20A Expired GB148412A (en) 1916-02-29 1920-07-10 Improvements in sound-producing or receiving devices containing two or more vibratory structures

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB19992/20A Expired GB147937A (en) 1916-02-29 1920-07-09 Improvements in sound-producing or receiving devices containing two or more vibratory structures
GB20359/20A Expired GB148414A (en) 1916-02-29 1920-07-10 Improvements in sound producing or receiving devices containing two or more vibratory structures

Country Status (5)

Country Link
US (1) US1610674A (en)
DE (1) DE310769C (en)
FR (1) FR532113A (en)
GB (3) GB147937A (en)
NL (1) NL10361C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2903673A (en) * 1954-01-06 1959-09-08 Harris Transducer Corp Acoustical impedance-matching transducer
US3121212A (en) * 1960-03-17 1964-02-11 Peter E Weber Electrodynamic underwater sound source
CN102733649B (en) 2011-04-05 2016-03-09 道尔青少年集团公司 Safe fence
US9775336B2 (en) 2013-12-06 2017-10-03 Airmar Technology Corporation Acoustic projector with source level monitoring and control
US10030961B2 (en) 2015-11-27 2018-07-24 General Electric Company Gap measuring device

Also Published As

Publication number Publication date
FR532113A (en) 1922-01-28
GB148414A (en) 1921-10-10
DE310769C (en)
US1610674A (en) 1926-12-14
NL10361C (en)
GB147937A (en) 1921-10-10

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