DE162600C - - Google Patents

Info

Publication number
DE162600C
DE162600C DENDAT162600D DE162600DA DE162600C DE 162600 C DE162600 C DE 162600C DE NDAT162600 D DENDAT162600 D DE NDAT162600D DE 162600D A DE162600D A DE 162600DA DE 162600 C DE162600 C DE 162600C
Authority
DE
Germany
Prior art keywords
sound waves
receiver
water
membranes
microphone
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.)
Active
Application number
DENDAT162600D
Other languages
German (de)
English (en)
Publication of DE162600C publication Critical patent/DE162600C/de
Active legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons 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
    • G01S1/72Beacons 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 Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DENDAT162600D Active DE162600C (cs)

Publications (1)

Publication Number Publication Date
DE162600C true DE162600C (cs)

Family

ID=428383

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT162600D Active DE162600C (cs)

Country Status (1)

Country Link
DE (1) DE162600C (cs)

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