FR735538A - Device for measuring the altitude indication, in particular on board airplanes - Google Patents

Device for measuring the altitude indication, in particular on board airplanes

Info

Publication number
FR735538A
FR735538A FR735538DA FR735538A FR 735538 A FR735538 A FR 735538A FR 735538D A FR735538D A FR 735538DA FR 735538 A FR735538 A FR 735538A
Authority
FR
France
Prior art keywords
measuring
altitude indication
board airplanes
airplanes
board
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
French (fr)
Inventor
Fritz Von Opel
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 filed Critical
Application granted granted Critical
Publication of FR735538A publication Critical patent/FR735538A/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
    • 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)
FR735538D 1931-04-20 1932-04-19 Device for measuring the altitude indication, in particular on board airplanes Expired FR735538A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE735538X 1931-04-20

Publications (1)

Publication Number Publication Date
FR735538A true FR735538A (en) 1932-11-10

Family

ID=6642149

Family Applications (1)

Application Number Title Priority Date Filing Date
FR735538D Expired FR735538A (en) 1931-04-20 1932-04-19 Device for measuring the altitude indication, in particular on board airplanes

Country Status (1)

Country Link
FR (1) FR735538A (en)

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