FR454425A - Verifying device for underwater acoustic receivers - Google Patents

Verifying device for underwater acoustic receivers

Info

Publication number
FR454425A
FR454425A FR454425A FR454425DA FR454425A FR 454425 A FR454425 A FR 454425A FR 454425 A FR454425 A FR 454425A FR 454425D A FR454425D A FR 454425DA FR 454425 A FR454425 A FR 454425A
Authority
FR
France
Prior art keywords
underwater acoustic
verifying device
acoustic receivers
receivers
verifying
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
FR454425A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR454425A publication Critical patent/FR454425A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
    • 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)
  • Signal Processing (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
FR454425A 1912-03-09 1913-02-15 Verifying device for underwater acoustic receivers Expired FR454425A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE191303934X 1912-03-09
DE191501751X 1914-02-03

Publications (1)

Publication Number Publication Date
FR454425A true FR454425A (en) 1913-07-04

Family

ID=32870602

Family Applications (3)

Application Number Title Priority Date Filing Date
FR454425A Expired FR454425A (en) 1912-03-09 1913-02-15 Verifying device for underwater acoustic receivers
FR22069A Expired FR22069E (en) 1912-03-09 1915-02-02 Verifying device for underwater acoustic receivers
FR22075D Expired FR22075E (en) 1912-03-09 1915-02-23 Verifying device for underwater acoustic receivers

Family Applications After (2)

Application Number Title Priority Date Filing Date
FR22069A Expired FR22069E (en) 1912-03-09 1915-02-02 Verifying device for underwater acoustic receivers
FR22075D Expired FR22075E (en) 1912-03-09 1915-02-23 Verifying device for underwater acoustic receivers

Country Status (3)

Country Link
DE (1) DE301260C (en)
FR (3) FR454425A (en)
GB (2) GB191303934A (en)

Also Published As

Publication number Publication date
FR22069E (en) 1921-05-12
GB191303934A (en) 1914-01-15
DE301260C (en)
FR22075E (en) 1921-05-12
GB191501751A (en) 1915-12-16

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