FR777057A - Perfectionnements aux appareils de sondage par l'écho - Google Patents

Perfectionnements aux appareils de sondage par l'écho

Info

Publication number
FR777057A
FR777057A FR777057DA FR777057A FR 777057 A FR777057 A FR 777057A FR 777057D A FR777057D A FR 777057DA FR 777057 A FR777057 A FR 777057A
Authority
FR
France
Prior art keywords
sounding device
echo sounding
device enhancements
enhancements
echo
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)
French (fr)
Inventor
Edward Lowther Holmes
Arthur Joseph Hughes
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.)
Henry Hughes & Son
Original Assignee
Henry Hughes & Son
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 Henry Hughes & Son filed Critical Henry Hughes & Son
Application granted granted Critical
Publication of FR777057A publication Critical patent/FR777057A/fr
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
    • 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)
  • 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)
  • Percussion Or Vibration Massage (AREA)
  • Magnetic Treatment Devices (AREA)
FR777057D 1933-08-15 1934-08-09 Perfectionnements aux appareils de sondage par l'écho Expired FR777057A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2275433A GB421205A (en) 1933-08-15 1933-08-15 Improvements in and relating to echo sounding apparatus

Publications (1)

Publication Number Publication Date
FR777057A true FR777057A (fr) 1935-02-11

Family

ID=10184532

Family Applications (1)

Application Number Title Priority Date Filing Date
FR777057D Expired FR777057A (fr) 1933-08-15 1934-08-09 Perfectionnements aux appareils de sondage par l'écho

Country Status (4)

Country Link
BE (1) BE404582A (enrdf_load_stackoverflow)
DE (1) DE660281C (enrdf_load_stackoverflow)
FR (1) FR777057A (enrdf_load_stackoverflow)
GB (1) GB421205A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE480461A (enrdf_load_stackoverflow) * 1947-02-20

Also Published As

Publication number Publication date
DE660281C (de) 1938-05-23
BE404582A (enrdf_load_stackoverflow)
GB421205A (en) 1934-12-17

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