FR476768A - Improvements in distance measurement by the use of sound waves - Google Patents

Improvements in distance measurement by the use of sound waves

Info

Publication number
FR476768A
FR476768A FR476768A FR476768DA FR476768A FR 476768 A FR476768 A FR 476768A FR 476768 A FR476768 A FR 476768A FR 476768D A FR476768D A FR 476768DA FR 476768 A FR476768 A FR 476768A
Authority
FR
France
Prior art keywords
distance measurement
sound waves
waves
sound
measurement
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
FR476768A
Other languages
French (fr)
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.)
Submarine Signal Co
Original Assignee
Submarine Signal Co
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 Submarine Signal Co filed Critical Submarine Signal Co
Application granted granted Critical
Publication of FR476768A publication Critical patent/FR476768A/en
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
    • 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
    • G01S7/56—Display arrangements

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)
  • Geophysics And Detection Of Objects (AREA)
FR476768A 1914-04-02 1914-12-14 Improvements in distance measurement by the use of sound waves Expired FR476768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US191422940XA 1914-04-02 1914-04-02

Publications (1)

Publication Number Publication Date
FR476768A true FR476768A (en) 1915-08-31

Family

ID=32682980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR476768A Expired FR476768A (en) 1914-04-02 1914-12-14 Improvements in distance measurement by the use of sound waves

Country Status (2)

Country Link
FR (1) FR476768A (en)
GB (1) GB191422940A (en)

Also Published As

Publication number Publication date
GB191422940A (en) 1915-11-23

Similar Documents

Publication Publication Date Title
FR476768A (en) Improvements in distance measurement by the use of sound waves
FR507609A (en) Sound wave generator
FR535295A (en) Device for determining the direction of acoustic waves
FR466869A (en) Improvements in the selection of radiotelegraph waves
FR18768E (en) Flexible probe tube
CH69014A (en) Angle indicator
FR536371A (en) Device for receiving underwater sound waves
CH68504A (en) Whistle instrument
FR440845A (en) Instrument for determining the weight of pearls mounted or not
FR415717A (en) Improvements in the transmission of signals by electromagnetic waves
FR520067A (en) Device for recording sound waves
FR493458A (en) Device for the strictly symmetrical use of two or more homologous continuous wave oscillators
FR476877A (en) Device to facilitate the zeroing of calculating machines
FR518437A (en) Surveying device
FR875691A (en) Underwater orientable device for the transmission of sound waves or others
FR439230A (en) Sapper's Beche
FI6182A (en) Area measuring device called "Lower"
FR446251A (en) Automatically adjustable frequency meter or ondometer
FR409932A (en) Application of Hertzian Waves to Distance Measurement
FR538361A (en) Improvements made to distance recording and transmitting instruments
FR399419A (en) Measuring instrument characterized by the use of precision balls
CH68519A (en) Innovation in acoustic instruments
FR455488A (en) Body plate
FR476358A (en) Adjustable coupling system
FR469220A (en) Oscillator or vibrator for the production of electromagnetic waves