BE365250A - - Google Patents

Info

Publication number
BE365250A
BE365250A BE365250DA BE365250A BE 365250 A BE365250 A BE 365250A BE 365250D A BE365250D A BE 365250DA BE 365250 A BE365250 A BE 365250A
Authority
BE
Belgium
Prior art keywords
sound
light
heat
instrument
indicating
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE365250A publication Critical patent/BE365250A/fr

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 Mechanical Vibrations Or Ultrasonic Waves (AREA)
BE365250D BE365250A (OSRAM)

Publications (1)

Publication Number Publication Date
BE365250A true BE365250A (OSRAM)

Family

ID=37579

Family Applications (1)

Application Number Title Priority Date Filing Date
BE365250D BE365250A (OSRAM)

Country Status (1)

Country Link
BE (1) BE365250A (OSRAM)

Similar Documents

Publication Publication Date Title
EP1924199B1 (fr) Systeme imageur d'un organe humain ou animal permettant la mesure de l'elasticite dudit organe
TW201413705A (zh) 電磁鈸拾取器
NO140361B (no) Sonaranordning for identifisering av neddykkede gjenstander
Lasky Review of undersea acoustics to 1950
BE365250A (OSRAM)
JP2006170926A (ja) 水中探知装置
CN103813258B (zh) 获取振膜顺性的方法及系统
US1523798A (en) Perception of radiant energy
Zimmerman Paul langevin and the discovery of active sonar or asdic
US1464103A (en) Sound detector
CH149276A (fr) Dispositif récepteur de signaux lumineux, sonores ou calorifiques.
US989250A (en) Transmission of sound.
FR2570915A1 (fr) Transducteur electro-acoustique multifrequence et procede de construction
US1504247A (en) Method and means for detecting and locating submarines
Jones Sound-ranging
EP0323941A2 (fr) Procédé et dispositif pour détecter et répéter à distance la position d'un impact sur une cible de tir
Merklinger et al. Fessenden and Boyle: Two Canadian sonar pioneers
NO316560B1 (no) Mikrofon med avstandsmåler
BE334398A (OSRAM)
US1008340A (en) Sound-transmitter.
BE431560A (OSRAM)
US10210851B2 (en) Drum hoop for holding a drumhead
Rankine On the transmission of speech by light
US848092A (en) Sea-sounding.
US7355926B2 (en) Portable low frequency projector