FR977000A - Dispositif indicateur de distance par écho, en particulier sondeur ultra-sonore - Google Patents

Dispositif indicateur de distance par écho, en particulier sondeur ultra-sonore

Info

Publication number
FR977000A
FR977000A FR977000DA FR977000A FR 977000 A FR977000 A FR 977000A FR 977000D A FR977000D A FR 977000DA FR 977000 A FR977000 A FR 977000A
Authority
FR
France
Prior art keywords
echo
device indicating
particular ultrasonic
indicating distance
ultrasonic sounder
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.)
Societe Francaise Radio Electrique
Original Assignee
Societe Francaise Radio Electrique
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 Societe Francaise Radio Electrique filed Critical Societe Francaise Radio Electrique
Application granted granted Critical
Publication of FR977000A publication Critical patent/FR977000A/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)
FR977000D 1942-06-03 1942-06-03 Dispositif indicateur de distance par écho, en particulier sondeur ultra-sonore Expired FR977000A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR977000T 1942-06-03

Publications (1)

Publication Number Publication Date
FR977000A true FR977000A (fr) 1951-03-27

Family

ID=9519302

Family Applications (1)

Application Number Title Priority Date Filing Date
FR977000D Expired FR977000A (fr) 1942-06-03 1942-06-03 Dispositif indicateur de distance par écho, en particulier sondeur ultra-sonore

Country Status (1)

Country Link
FR (1) FR977000A (fr)

Similar Documents

Publication Publication Date Title
CH281612A (de) Signalempfangsanlage.
FR977000A (fr) Dispositif indicateur de distance par écho, en particulier sondeur ultra-sonore
FR944089A (fr) Dispositif de découplage
CH230830A (fr) Dispositif pour garer des cycles.
FR938781A (fr) Dispositif transducteur de son
FR938802A (fr) Dispositif de transmission de signaux
FR892608A (fr) Dispositif de bouchage
CH252870A (fr) Dispositif de changement de vitesse.
FR885140A (fr) Dispositif de renforcement pour lignes électriques de traction
CH251271A (fr) Dispositif de changement de vitesses.
FR888137A (fr) Dispositif de commande par flotteur
FR898695A (fr) Dispositif de battage
FR889308A (fr) Dispositif de décrottage
CH250538A (fr) Dispositif discriminateur de fréquence.
FR896342A (fr) Dispositif de jonction de tubes de sondage
FR904745A (fr) Dispositif de tronçonnage
FR899774A (fr) Indicateur de distance, en particulier altimètre pour avions
FR888247A (fr) Dispositif mélangeur
FR893176A (fr) Dispositif de sélection
CH221554A (it) Dispositivo indicatore di minimo livello.
CH235187A (it) Dispositivo indicatore di minimo livello.
FR889265A (fr) Dispositif de jeu
FR879033A (fr) Dispositif de jeu
FR976100A (fr) Perfectionnements aux appareils de sondage par écho sonore ou ultra sonore
DK63303C (da) Haandsvejseapparat.