FR948945A - Sound source tracking device and its application to mobile guidance - Google Patents

Sound source tracking device and its application to mobile guidance

Info

Publication number
FR948945A
FR948945A FR948945DA FR948945A FR 948945 A FR948945 A FR 948945A FR 948945D A FR948945D A FR 948945DA FR 948945 A FR948945 A FR 948945A
Authority
FR
France
Prior art keywords
microphone
microphones
motor
directional
projectile
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)
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.)
Bendix Aviation Corp
Original Assignee
Bendix Aviation Corp
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
Priority claimed from US393685A external-priority patent/US2422446A/en
Application filed by Bendix Aviation Corp filed Critical Bendix Aviation Corp
Application granted granted Critical
Publication of FR948945A publication Critical patent/FR948945A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/22—Homing guidance systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41G—WEAPON SIGHTS; AIMING
    • F41G7/00—Direction control systems for self-propelled missiles
    • F41G7/20—Direction control systems for self-propelled missiles based on continuous observation of target position
    • F41G7/22—Homing guidance systems
    • F41G7/2206—Homing guidance systems using a remote control station
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/10—Missiles having a trajectory only in the air
    • F42B15/105—Air torpedoes, e.g. projectiles with or without propulsion, provided with supporting air foil surfaces
    • 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

Abstract

587,438. Automatic steering control systems. BENDIX AVIATION CORPORATION. June 4, 1942, No. 7647. Convention date, May 15, 1941. [Class 38 (iv)] [Also in Group XXXVIII] A device for ascertaining the direction of a source of sound comprises directional and non-directional microphones, and means energized by the microphones to turn the support of the device in that direction. The device may be used to steer a projectile towards a source of sound such as an aeroplane.. In the arrangement shown a directional microphone 10, which may be of the ribbon type, is carried by a vertical shaft 20 that rotates a pointer 31 over a scale 32 and is also geared to a shaft 23. A non-directional microphone 27 is mounted above and close to the microphone 10. The output of the microphone 10 is connected through an amplifier 15 to windings on two opposite poles 18 of an indication motor 17, and the microphone 27 is similarly connected to poles 19 which are at right angles to the poles 18. The rotor 26 of this motor is geared to the shaft 23 and is thus able to rotate the microphone 10 about its vertical axis. The difference in the outputs from the microphones causes the microphone 10 to be turned by the shaft 23 until it faces the direction of the sound, which also will be indicated by the pointer 31. The same result can be obtained by using three stationary directional microphones instead of the single movable directional microphone 10. The three microphones are arranged one above the other and closely adjacent, the ribbon of each being displaced 120 degrees with respect' to the others. The microphones are separately connected to three pole-windings of an indication motor the rotor of which having a winding that is connected to opposite polewindings of another motor, similar to the motor 17. The other windings of this motor are connected to a non-directional microphone. The rotors of the two motors are geared to one another and to an indicating pointer. In each case, the arrangement may be mounted on an aircraft to give the pilot some indication of the position of an enemy aircraft. A similar arrangement may be used for steering a selfsteering glider-projectile which, when dropped from an aeroplane in the path of approaching enemy aircraft, glides downwards and is steered towards the enemy aircraft by the noise of the engine. The glider-projectile may be provided with a suitable relay which explodes it when the noise of the target aircraft reaches a predetermined volume. Means may be provided also for exploding the projectile before it reaches the ground should it miss its target.
FR948945D 1941-05-15 1947-06-14 Sound source tracking device and its application to mobile guidance Expired FR948945A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US393685A US2422446A (en) 1941-05-15 1941-05-15 Sonic direction finding
US422910A US2498772A (en) 1941-05-15 1941-12-13 Aerial torpedo

Publications (1)

Publication Number Publication Date
FR948945A true FR948945A (en) 1949-08-16

Family

ID=27014407

Family Applications (1)

Application Number Title Priority Date Filing Date
FR948945D Expired FR948945A (en) 1941-05-15 1947-06-14 Sound source tracking device and its application to mobile guidance

Country Status (3)

Country Link
US (1) US2498772A (en)
FR (1) FR948945A (en)
GB (1) GB587438A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135777A (en) * 1983-02-17 1984-09-05 Brazier Jones Mark William Sound responsive devices

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1303105A (en) * 1919-05-06 murdock
DE297977C (en) *
US1137222A (en) * 1908-02-11 1915-04-27 Leon Steering Device Company Torpedo and other submarine apparatus.
US1312510A (en) * 1917-08-25 1919-08-12 George Baker Sound-controlled dirigible torpedo.
US1344352A (en) * 1918-08-10 1920-06-22 Edward A Parmele Steering apparatus
US1506552A (en) * 1921-05-14 1924-08-26 Donald J Angus Resistance meter
GB344967A (en) * 1929-12-24 1931-03-19 Paul Freedman Improvements in and relating to sound ranging devices
US1842345A (en) * 1930-03-03 1932-01-19 Eaton Radio Instr Corp Radio operated direction indicator
FR747504A (en) * 1931-12-14 1933-06-16
US1991443A (en) * 1932-10-26 1935-02-19 Gen Electric Direction finder
US2109475A (en) * 1935-12-24 1938-03-01 Walter N Fanning Control system
US2173219A (en) * 1937-05-29 1939-09-19 Rca Corp Electroacoustical apparatus
US2282030A (en) * 1937-09-17 1942-05-05 Int Standard Electric Corp System of guiding vehicles

Also Published As

Publication number Publication date
GB587438A (en) 1947-04-25
US2498772A (en) 1950-02-28

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