GB317089A - Improvements in or relating to apparatus for determining the direction of sound rays - Google Patents

Improvements in or relating to apparatus for determining the direction of sound rays

Info

Publication number
GB317089A
GB317089A GB24426/29A GB2442629A GB317089A GB 317089 A GB317089 A GB 317089A GB 24426/29 A GB24426/29 A GB 24426/29A GB 2442629 A GB2442629 A GB 2442629A GB 317089 A GB317089 A GB 317089A
Authority
GB
United Kingdom
Prior art keywords
sound
reflectors
determining
indicator
around
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
GB24426/29A
Other languages
English (en)
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.)
Optische Anstalt CP Goerz AG
Original Assignee
Optische Anstalt CP Goerz AG
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 Optische Anstalt CP Goerz AG filed Critical Optische Anstalt CP Goerz AG
Publication of GB317089A publication Critical patent/GB317089A/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)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
GB24426/29A 1928-08-10 1929-08-09 Improvements in or relating to apparatus for determining the direction of sound rays Expired GB317089A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE317089X 1928-08-10

Publications (1)

Publication Number Publication Date
GB317089A true GB317089A (en) 1930-10-02

Family

ID=6150680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24426/29A Expired GB317089A (en) 1928-08-10 1929-08-09 Improvements in or relating to apparatus for determining the direction of sound rays

Country Status (3)

Country Link
FR (1) FR679970A (enrdf_load_stackoverflow)
GB (1) GB317089A (enrdf_load_stackoverflow)
NL (1) NL25808C (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489966A1 (fr) * 1980-09-10 1982-03-12 Plessey Overseas Sonar muni d'un reflecteur d'epaisseur constante
US4433396A (en) * 1980-09-10 1984-02-21 Plessey Overseas Limited Sonar receivers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2489966A1 (fr) * 1980-09-10 1982-03-12 Plessey Overseas Sonar muni d'un reflecteur d'epaisseur constante
US4433396A (en) * 1980-09-10 1984-02-21 Plessey Overseas Limited Sonar receivers

Also Published As

Publication number Publication date
FR679970A (enrdf_load_stackoverflow) 1930-04-23
NL25808C (enrdf_load_stackoverflow)

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