FR1535423A - Sonde acoustique - Google Patents

Sonde acoustique

Info

Publication number
FR1535423A
FR1535423A FR1065A FR1065A FR1535423A FR 1535423 A FR1535423 A FR 1535423A FR 1065 A FR1065 A FR 1065A FR 1065 A FR1065 A FR 1065A FR 1535423 A FR1535423 A FR 1535423A
Authority
FR
France
Prior art keywords
acoustic probe
acoustic
probe
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
FR1065A
Other languages
English (en)
Inventor
Hans Drenkelfort
Gustav Maass
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.)
ELAC Electroacustic GmbH
Original Assignee
ELAC Electroacustic 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 claimed from DEE27282A external-priority patent/DE1265002B/de
Application filed by ELAC Electroacustic GmbH filed Critical ELAC Electroacustic GmbH
Priority to FR1065A priority Critical patent/FR1535423A/fr
Application granted granted Critical
Publication of FR1535423A publication Critical patent/FR1535423A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G7/00—Volume compression or expansion in amplifiers
    • H03G7/02—Volume compression or expansion in amplifiers having discharge tubes
    • 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
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/523—Details of pulse systems
    • G01S7/526—Receivers
    • G01S7/529—Gain of receiver varied automatically during pulse-recurrence period

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR1065A 1964-06-26 1965-01-07 Sonde acoustique Expired FR1535423A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1065A FR1535423A (fr) 1964-06-26 1965-01-07 Sonde acoustique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEE27282A DE1265002B (de) 1964-06-26 1964-06-26 Echolotgeraet
FR1065A FR1535423A (fr) 1964-06-26 1965-01-07 Sonde acoustique

Publications (1)

Publication Number Publication Date
FR1535423A true FR1535423A (fr) 1968-08-09

Family

ID=25973255

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1065A Expired FR1535423A (fr) 1964-06-26 1965-01-07 Sonde acoustique

Country Status (1)

Country Link
FR (1) FR1535423A (fr)

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