GB352040A - Improvements in or relating to subaqueous sound receivers and transmitters - Google Patents
Improvements in or relating to subaqueous sound receivers and transmittersInfo
- Publication number
- GB352040A GB352040A GB2948/30A GB294830A GB352040A GB 352040 A GB352040 A GB 352040A GB 2948/30 A GB2948/30 A GB 2948/30A GB 294830 A GB294830 A GB 294830A GB 352040 A GB352040 A GB 352040A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- transmitter
- unit
- combined
- subaqueous 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
- 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)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
352,040. Subaqueous sound signals; plate vibrators ; mounting piezo-electric units. SOC. DE CONDENSATION ET D'APPLICATION MECANIQUES, 42, Rue de Clichy, Paris, and TOULY, M., 9, Chaussee du Pont, Boulogne-sur-Seine, both in France. Jan. 28, 1930, No. 2948. Convention date,. Feb. 25, 1929. [Classes 13 and 118 (ii).] A metal plate is interposed between a subaqueous sound transmitter or receiver and the sea, the thickness of the plate or of the combined plate and transmitter being K#/2, where # is the wavelength of an oscillation in the plate and K is any integer, the plate being secured along one of its nodal lines or in a position corresponding to a nodal line of the combined plate and transmitter. The distance, Fig. 1, of a nodal line from the outer face of the plate is stated to be given by the formula- #/4 + K1#/2, where K<1> is any integer or is zero. The invention is shown in Fig. 2 as applied to a piezoelectric transmitter-receiver. The piezo unit 6 is placed in a holder 1 screwed into a flange 3 attached to the skin 5 of the ship. The holder 1 also carries the plate 2 dimensioned according to the present invention, acoustic contact between the unit and the plate being provided by a layer 8 of mercury or other liquid. In a modification, the combined thickness of the unit and the plate is #/2 and the distance from the surface of the plate to its point of attachment is #/4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR352040X | 1929-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB352040A true GB352040A (en) | 1931-06-29 |
Family
ID=8893018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2948/30A Expired GB352040A (en) | 1929-02-25 | 1930-01-28 | Improvements in or relating to subaqueous sound receivers and transmitters |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB352040A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2458581A (en) * | 1946-05-21 | 1949-01-11 | Sperry Prod Inc | Supersonic inspection |
| US2697936A (en) * | 1948-04-02 | 1954-12-28 | Republic Steel Corp | Supersonic testing of hot articles |
| DE956361C (en) * | 1939-04-12 | 1957-01-17 | Siemens Ag | Arrangement for holding oscillating crystals |
| US2903884A (en) * | 1955-05-10 | 1959-09-15 | Kritz Jack | Densitometer |
| US2931223A (en) * | 1954-12-10 | 1960-04-05 | Kritz Jack | Transducers for acoustic flowmeter |
| US2949772A (en) * | 1954-12-10 | 1960-08-23 | Kritz Jack | Flowmeter |
| US2990482A (en) * | 1957-05-01 | 1961-06-27 | Acoustica Associates Inc | Transducer assembly |
| DE3324575A1 (en) * | 1982-07-22 | 1984-02-02 | Siemens AG, 1000 Berlin und 8000 München | Treatment head for electrotherapeutic treatment of body parts using ultrasound |
-
1930
- 1930-01-28 GB GB2948/30A patent/GB352040A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE956361C (en) * | 1939-04-12 | 1957-01-17 | Siemens Ag | Arrangement for holding oscillating crystals |
| US2458581A (en) * | 1946-05-21 | 1949-01-11 | Sperry Prod Inc | Supersonic inspection |
| US2697936A (en) * | 1948-04-02 | 1954-12-28 | Republic Steel Corp | Supersonic testing of hot articles |
| US2931223A (en) * | 1954-12-10 | 1960-04-05 | Kritz Jack | Transducers for acoustic flowmeter |
| US2949772A (en) * | 1954-12-10 | 1960-08-23 | Kritz Jack | Flowmeter |
| US2903884A (en) * | 1955-05-10 | 1959-09-15 | Kritz Jack | Densitometer |
| US2990482A (en) * | 1957-05-01 | 1961-06-27 | Acoustica Associates Inc | Transducer assembly |
| DE3324575A1 (en) * | 1982-07-22 | 1984-02-02 | Siemens AG, 1000 Berlin und 8000 München | Treatment head for electrotherapeutic treatment of body parts using ultrasound |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB227788A (en) | Improvements in method and means for the observation and measurement of the speed of a vessel by directed beams of ultra-audible waves | |
| GB352040A (en) | Improvements in or relating to subaqueous sound receivers and transmitters | |
| GB489250A (en) | Improvements in or relating to vibratory mechanism | |
| GB363319A (en) | Improvements in or relating to distance or depth finding apparatus | |
| FR2378357A1 (en) | DEVICE FOR THE PROPAGATION OF ACOUSTIC WAVES INCLUDING A PIEZO-ELECTRIC SUBSTRATE | |
| GB723329A (en) | Improvements in and relating to the non-destructive testing of solid bodies | |
| JPS56131300A (en) | Piezoelectric vibration plate | |
| GB623022A (en) | Improvements in and relating to electric oscillation generators | |
| GB145691A (en) | Improvements relating to the emission and reception of submarine waves | |
| PT1041403E (en) | COMPACT VIBRATOR AND SURVEILLANCE PROCESS OR SEISMIC PROSPECTION THAT USE A SUCH VIBRATOR | |
| GB1080826A (en) | Improvements in or relating to devices for producing and using acoustic vibrations | |
| GB1265326A (en) | ||
| Feit | Sound radiation from orthotropic plates | |
| GB2071883B (en) | Watch having a piezo-electric buzzer | |
| GB1314818A (en) | Acoustical transducers | |
| GB466212A (en) | Improvements in or relating to the generation of mechanical waves of supersonic frequency | |
| ATE7096T1 (en) | SIGNALING DEVICES TO GENERATE AN ACOUSTIC SIGNAL. | |
| GB813278A (en) | Acoustic torpedo having pressure compensated transducer | |
| US1794365A (en) | Heterodyne receiving apparatus | |
| JPS57157166A (en) | Wave transmitter/receiver | |
| GB312962A (en) | Improvements in or relating to electro-acoustic transmission and the like systems | |
| GB147941A (en) | Improvements in subaqueous sound producers or receivers | |
| GB597421A (en) | Improvements in or relating to piezoelectric oscillators | |
| GB1322094A (en) | Acoustic wave liquid-level measuring apparatus | |
| JP2592041Y2 (en) | Ultrasonic receiver / transmitter |