FR2305742B1 - - Google Patents

Info

Publication number
FR2305742B1
FR2305742B1 FR7509399A FR7509399A FR2305742B1 FR 2305742 B1 FR2305742 B1 FR 2305742B1 FR 7509399 A FR7509399 A FR 7509399A FR 7509399 A FR7509399 A FR 7509399A FR 2305742 B1 FR2305742 B1 FR 2305742B1
Authority
FR
France
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
FR7509399A
Other languages
French (fr)
Other versions
FR2305742A1 (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.)
REALISATIONS ELECTRONIQUE ET
Original Assignee
REALISATIONS ELECTRONIQUE ET
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 REALISATIONS ELECTRONIQUE ET filed Critical REALISATIONS ELECTRONIQUE ET
Priority to FR7509399A priority Critical patent/FR2305742A1/en
Publication of FR2305742A1 publication Critical patent/FR2305742A1/en
Application granted granted Critical
Publication of FR2305742B1 publication Critical patent/FR2305742B1/fr
Granted 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
    • G01S11/00—Systems for determining distance or velocity not using reflection or reradiation
    • G01S11/14—Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic, or infrasonic waves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G3/00—Aiming or laying means
    • F41G3/22—Aiming or laying means for vehicle-borne armament, e.g. on aircraft
    • F41G3/225—Helmet sighting systems
FR7509399A 1975-03-26 1975-03-26 Determining position of viewfinder in helicopter - involves ultrasonic transmissions passing to receivers on three fixed axes from viewfinder Granted FR2305742A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7509399A FR2305742A1 (en) 1975-03-26 1975-03-26 Determining position of viewfinder in helicopter - involves ultrasonic transmissions passing to receivers on three fixed axes from viewfinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7509399A FR2305742A1 (en) 1975-03-26 1975-03-26 Determining position of viewfinder in helicopter - involves ultrasonic transmissions passing to receivers on three fixed axes from viewfinder

Publications (2)

Publication Number Publication Date
FR2305742A1 FR2305742A1 (en) 1976-10-22
FR2305742B1 true FR2305742B1 (en) 1979-03-09

Family

ID=9153086

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7509399A Granted FR2305742A1 (en) 1975-03-26 1975-03-26 Determining position of viewfinder in helicopter - involves ultrasonic transmissions passing to receivers on three fixed axes from viewfinder

Country Status (1)

Country Link
FR (1) FR2305742A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2508651B1 (en) * 1981-06-30 1985-08-09 Tech Cie Indle DEVICE FOR TRACKING THE POSITION OF A POINT IN SPACE, IN PARTICULAR BY ULTRASOUND
DE3581545D1 (en) * 1984-02-21 1991-03-07 Travenol Gmbh METHOD AND DEVICE FOR MEASURING THE LOCATION OF SEVERAL MEASURING POINTS WITH THE AID OF ULTRASOUND IMPULSES.
US4746221A (en) * 1985-05-14 1988-05-24 Nippon Mining Co., Ltd. Stirrer for use in liquid storage tanks

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041006A1 (en) * 1969-04-24 1971-01-29 Realisation Ultrasonique
US3777305A (en) * 1972-04-10 1973-12-04 Us Navy Ultrasonic angle measurement system

Also Published As

Publication number Publication date
FR2305742A1 (en) 1976-10-22

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Legal Events

Date Code Title Description
TP Transmission of property