GB148424A - Improvements in sound receivers - Google Patents

Improvements in sound receivers

Info

Publication number
GB148424A
GB148424A GB20371/20A GB2037120A GB148424A GB 148424 A GB148424 A GB 148424A GB 20371/20 A GB20371/20 A GB 20371/20A GB 2037120 A GB2037120 A GB 2037120A GB 148424 A GB148424 A GB 148424A
Authority
GB
United Kingdom
Prior art keywords
damped
tuned
amount
receivers
sound
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
GB20371/20A
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 GB148424A publication Critical patent/GB148424A/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)
  • Electrophonic Musical Instruments (AREA)

Abstract

148,424. Signal Ges. Nov. 29, 1915, [Convention date]. Audible signals.-Sound-receiving apparatus is neither fully tuned nor rendered aperiodic, but is so far damped that while partly tuned it fails to produce a definite musical tone when struck under water. The receivers may be damped by known means, as for instance by applying large microphones, or generally by causing the indicating-means to abstract a large amount of energy from the vibratory member. The damping factor should amount to 0.3 at the least.
GB20371/20A 1915-11-29 1920-07-10 Improvements in sound receivers Expired GB148424A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE148424X 1915-11-29

Publications (1)

Publication Number Publication Date
GB148424A true GB148424A (en) 1921-09-22

Family

ID=5672673

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20371/20A Expired GB148424A (en) 1915-11-29 1920-07-10 Improvements in sound receivers

Country Status (1)

Country Link
GB (1) GB148424A (en)

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