GB152616A - Improvements in submarine sound receivers - Google Patents

Improvements in submarine sound receivers

Info

Publication number
GB152616A
GB152616A GB2931020A GB2931020A GB152616A GB 152616 A GB152616 A GB 152616A GB 2931020 A GB2931020 A GB 2931020A GB 2931020 A GB2931020 A GB 2931020A GB 152616 A GB152616 A GB 152616A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
microphone
frequency
microphones
grip
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
GB2931020A
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
Priority to NL11892D priority Critical patent/NL11892C/xx
Priority to DES51301D priority patent/DE410343C/en
Application filed by Signal GmbH filed Critical Signal GmbH
Priority to GB2931020A priority patent/GB152616A/en
Publication of GB152616A publication Critical patent/GB152616A/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)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)

Abstract

152,616. Baron, H., (Signal Ges.). Oct. 16, 1920. Subaqueous audible signals.-The diaphragms and microphones of subaqueous sound signal receivers are separately tuned before coupling. The microphones are constructed, as described in Specification 14210/15, so as to have uniformly reproducible acoustic properties. For this purpose, the flanges k which grip the diaphragm a are ground on to each other, and the electrodes b, f and nut g are made with concave faces so as to grip the diaphragm and the back of the casing at their peripheries. The diaphragm a is preferably of bronze. The stem s of the electrode f serves for bolting the microphone as a whole to the main diaphragm m, the nut n being covered by a metal seal u. The receiver as a whole has two resonance frequencies depending on the natural frequencies of the diaphragm m and of the microphone and on the coupling between them; it is preferred to make the natural frequency of the diaphragm m higher than the signalling frequency and the natural frequency of the microphone higher still, the lower of the two resultant frequencies being made to coincide with the signalling frequency.
GB2931020A 1919-10-17 1920-10-16 Improvements in submarine sound receivers Expired GB152616A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL11892D NL11892C (en) 1920-10-16
DES51301D DE410343C (en) 1919-10-17 1919-10-17 Process for the production of underwater sound receivers
GB2931020A GB152616A (en) 1920-10-16 1920-10-16 Improvements in submarine sound receivers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2931020A GB152616A (en) 1920-10-16 1920-10-16 Improvements in submarine sound receivers

Publications (1)

Publication Number Publication Date
GB152616A true GB152616A (en) 1922-02-16

Family

ID=10289502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2931020A Expired GB152616A (en) 1919-10-17 1920-10-16 Improvements in submarine sound receivers

Country Status (2)

Country Link
GB (1) GB152616A (en)
NL (1) NL11892C (en)

Also Published As

Publication number Publication date
NL11892C (en)

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