GB142096A - Improvements in or relating to microphone mountings - Google Patents

Improvements in or relating to microphone mountings

Info

Publication number
GB142096A
GB142096A GB10844/20A GB1084420A GB142096A GB 142096 A GB142096 A GB 142096A GB 10844/20 A GB10844/20 A GB 10844/20A GB 1084420 A GB1084420 A GB 1084420A GB 142096 A GB142096 A GB 142096A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
air
microphone
relating
external water
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
GB10844/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB142096A publication Critical patent/GB142096A/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)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

142,096. Williams, R. L. April 25, 1918, [Convention date]. Detecting subaqueous sounds.-A microphone D is mounted on a thick diaphragm C of rubber or other aperiodic material. In hydrophones, to which the invention is specially applicable, means are provided for preventing inequality of pressure on the two sides of the diaphragm. In the form shown in Fig. 1, this is effected by clamping the diaphragm in the middle of a closed spherical casing A, B, with water in one hemisphere and air in the other. In a second arrangement, shown in Fig. 2, one side of the diaphragm is exposed direct to the external water, and the air in the space at the back of the diaphragm is pumped up to the same pressure as that of the external water e.t the depth at which the hydrophone is to be used. The diaphragm C may be of square or other non-circular form.
GB10844/20A 1918-04-25 1920-04-19 Improvements in or relating to microphone mountings Expired GB142096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US142096XA 1918-04-25 1918-04-25

Publications (1)

Publication Number Publication Date
GB142096A true GB142096A (en) 1920-10-07

Family

ID=21764125

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10844/20A Expired GB142096A (en) 1918-04-25 1920-04-19 Improvements in or relating to microphone mountings

Country Status (1)

Country Link
GB (1) GB142096A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1191351A2 (en) * 2000-09-23 2002-03-27 STN ATLAS Elektronik GmbH Underwater towed array

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1191351A2 (en) * 2000-09-23 2002-03-27 STN ATLAS Elektronik GmbH Underwater towed array
EP1191351A3 (en) * 2000-09-23 2004-08-18 ATLAS ELEKTRONIK GmbH Underwater towed array

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