FR523449A - Télémètre acoustique - Google Patents

Télémètre acoustique

Info

Publication number
FR523449A
FR523449A FR523449A FR523449DA FR523449A FR 523449 A FR523449 A FR 523449A FR 523449 A FR523449 A FR 523449A FR 523449D A FR523449D A FR 523449DA FR 523449 A FR523449 A FR 523449A
Authority
FR
France
Prior art keywords
acoustic rangefinder
rangefinder
acoustic
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
FR523449A
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.)
Societe des Etablissements Gaumont
Original Assignee
Societe des Etablissements Gaumont
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 Societe des Etablissements Gaumont filed Critical Societe des Etablissements Gaumont
Application granted granted Critical
Publication of FR523449A publication Critical patent/FR523449A/fr
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
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G01S15/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S15/34—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of continuous, frequency-modulated waves while heterodyning the received signal, or a signal derived therefrom, with a locally-generated signal related to the contemporaneously transmitted signal

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
FR523449A 1920-01-28 1920-01-28 Télémètre acoustique Expired FR523449A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR523449T 1920-01-28

Publications (1)

Publication Number Publication Date
FR523449A true FR523449A (fr) 1921-08-18

Family

ID=8918616

Family Applications (1)

Application Number Title Priority Date Filing Date
FR523449A Expired FR523449A (fr) 1920-01-28 1920-01-28 Télémètre acoustique

Country Status (1)

Country Link
FR (1) FR523449A (fr)

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