GB389646A - Improvements in and relating to echo-sounding apparatus for use on noisy aircraft - Google Patents
Improvements in and relating to echo-sounding apparatus for use on noisy aircraftInfo
- Publication number
- GB389646A GB389646A GB6362/32A GB636232A GB389646A GB 389646 A GB389646 A GB 389646A GB 6362/32 A GB6362/32 A GB 6362/32A GB 636232 A GB636232 A GB 636232A GB 389646 A GB389646 A GB 389646A
- Authority
- GB
- United Kingdom
- Prior art keywords
- echo
- aircraft
- acoustic
- channel
- sound
- 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
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K5/00—Whistles
-
- 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
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/521—Constructional features
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/56—Display arrangements
- G01S7/58—Display arrangements for providing variable ranges
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V1/00—Seismology; Seismic or acoustic prospecting or detecting
- G01V1/02—Generating seismic energy
- G01V1/133—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion
- G01V1/137—Generating seismic energy using fluidic driving means, e.g. highly pressurised fluids; using implosion which fluid escapes from the generator in a pulsating manner, e.g. for generating bursts, airguns
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Computer Networks & Wireless Communication (AREA)
- Life Sciences & Earth Sciences (AREA)
- Acoustics & Sound (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Multimedia (AREA)
- Geophysics (AREA)
- Geology (AREA)
- Environmental & Geological Engineering (AREA)
- Toys (AREA)
- Percussion Or Vibration Massage (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Audible And Visible Signals (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
389,646. Echo-sounding apparatus. FLORISSON, C. L., 11, Rue de Cronstadt, Courbevoie, Seine, and SOC. DE CONDENSATION ET D'APPLICATIONS MECANIQUES, 42, Rue de Clichy, Paris. March 2, 1932, No. 6362. Convention date, March 2, 1931. [Class 118 (ii).] In echo-sounding apparatus for use on aircraft, the transmitter and the receiver are each located within a recess in the outer surface of the craft, the mouth of each recess being closed by a sound-permeable partition lying in the surface of the craft so that it neither protrudes therefrom nor produces a depression therein. The transmitter 2 and the receiver 4 are located in paraboloidal reflectors fitted on a smooth surface 1 of the aircraft. The reflectors are provided with acoustic insulating material 6 and are closed by panels 3, 5, preferably of fabric, through which sound can pass. The sound is emitted by a whistle 17 controlled by a valve 20a actuated by an electromagnet 19 energized when contacts 14 are closed by a constantly-rotating cam 13. The echo is conveyed to the ears of the observer by an acoustic channel 7 which is blocked by a device 25 during the emission period. The channel 7 contains an acoustic filter 9. A " false echo is produced by a device 11 and supplied to the channel 7 through an intensity-regulating device 27. The device 11 is actuated by the closing of contacts 21 by the cam 13. These contacts are adjusted angularly round the camshaft until the " false echo " coincides with the actual echo. The extent of this angular adjustment, indicated on a scale 24, is thus a measure of the height of the aircraft. The " false echo " may be different in pitch from the true echo and the formation of beats in the ears of the observer may be utilized as an indication that the two sounds are in coincidence. The acoustic channel 7 may be replaced by an electrical one having a microphone at one end and telephones at the other, the acoustic filter 9 being replaced by a corresponding electrical device.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR389646X | 1931-03-02 | ||
FR4043873X | 1931-07-30 | ||
GB3446932A GB416310A (en) | 1932-12-05 | 1932-12-05 | Improvements in and relating to acoustic sounding apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB389646A true GB389646A (en) | 1933-03-23 |
Family
ID=31950329
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB6362/32A Expired GB389646A (en) | 1931-03-02 | 1932-03-02 | Improvements in and relating to echo-sounding apparatus for use on noisy aircraft |
GB34880/33A Expired GB404594A (en) | 1931-03-02 | 1932-07-29 | Improvements in and relating to echo-sounding apparatus for use on noisy aircraft |
GB21478/32A Expired GB404383A (en) | 1931-03-02 | 1932-07-29 | Improvements in and relating to acoustic sounding apparatus |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB34880/33A Expired GB404594A (en) | 1931-03-02 | 1932-07-29 | Improvements in and relating to echo-sounding apparatus for use on noisy aircraft |
GB21478/32A Expired GB404383A (en) | 1931-03-02 | 1932-07-29 | Improvements in and relating to acoustic sounding apparatus |
Country Status (3)
Country | Link |
---|---|
BE (1) | BE385832A (en) |
GB (3) | GB389646A (en) |
NL (1) | NL35617C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2167557A (en) * | 1984-10-11 | 1986-05-29 | Fisco Electronics | Ultrasonic ranging apparatus |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4632213A (en) * | 1983-02-28 | 1986-12-30 | Standard Oil Company (Indiana) | Seismic source system for use in water covered area |
-
0
- BE BE385832D patent/BE385832A/xx unknown
- NL NL35617D patent/NL35617C/xx active
-
1932
- 1932-03-02 GB GB6362/32A patent/GB389646A/en not_active Expired
- 1932-07-29 GB GB34880/33A patent/GB404594A/en not_active Expired
- 1932-07-29 GB GB21478/32A patent/GB404383A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2167557A (en) * | 1984-10-11 | 1986-05-29 | Fisco Electronics | Ultrasonic ranging apparatus |
Also Published As
Publication number | Publication date |
---|---|
NL35617C (en) | |
BE385832A (en) | |
GB404383A (en) | 1934-01-18 |
GB404594A (en) | 1934-01-18 |
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