FR545724A - Vibrateur, notamment pour signaux acoustiques - Google Patents

Vibrateur, notamment pour signaux acoustiques

Info

Publication number
FR545724A
FR545724A FR545724DA FR545724A FR 545724 A FR545724 A FR 545724A FR 545724D A FR545724D A FR 545724DA FR 545724 A FR545724 A FR 545724A
Authority
FR
France
Prior art keywords
vibrator
acoustic signals
acoustic
signals
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
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.)
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 FR545724A publication Critical patent/FR545724A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H11/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
    • G01H11/06—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means
    • 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)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
FR545724D 1922-01-09 1922-01-09 Vibrateur, notamment pour signaux acoustiques Expired FR545724A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR545724T 1922-01-09
GB1358/22A GB200709A (en) 1922-01-09 1922-01-16 Vibratory device suitable particularly for sound signals

Publications (1)

Publication Number Publication Date
FR545724A true FR545724A (fr) 1922-10-19

Family

ID=9720618

Family Applications (1)

Application Number Title Priority Date Filing Date
FR545724D Expired FR545724A (fr) 1922-01-09 1922-01-09 Vibrateur, notamment pour signaux acoustiques

Country Status (2)

Country Link
FR (1) FR545724A (fr)
GB (1) GB200709A (fr)

Also Published As

Publication number Publication date
GB200709A (en) 1923-07-16

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