GB160798A - Improvements in or relating to sound emitting and receiving devices - Google Patents
Improvements in or relating to sound emitting and receiving devicesInfo
- Publication number
- GB160798A GB160798A GB9172/21A GB917221A GB160798A GB 160798 A GB160798 A GB 160798A GB 9172/21 A GB9172/21 A GB 9172/21A GB 917221 A GB917221 A GB 917221A GB 160798 A GB160798 A GB 160798A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- plate
- sound
- ship
- oscillator
- 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)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
160,798. Submarine Signal Co., (Assignees of Fay, R. D.). March 26, 1920, [Convention date]. Subaqueous audible signals.-In apparatus for transmitting and receiving sound, particularly for subaqueous signalling, the rigid vibrating plate abutting against the sound-transmitting medium is connected with the vibration producer or detector proper by a longitudinally vibratory member which is substantially unloaded at its other end and the material of which is of substantially equal cross-section throughout. Fig. 2 shows a metallic rod B connected at one end to the diaphragm of a Fessenden oscillator A, and at the other end opened out to form a cone D which is connected to a plate C<1> near its periphery. The plate C<1> is rigid so that all its parts vibrate in phase. Any other connection may be used to secure this result. The cross-section of the material of the cone D is equal to that of the rod B. As shown, the plate C<1> is mounted in an opening in a ship's skin E. It may, however, be secured to the inner surface of the ship's skin, or may be clamped to a rubber diaphragm forming the inner wall of a water-filled chamber, the outer wall of which is formed by the ship's skin. To decrease over all length, the hollow part D of the connection may enclose the remainder, as shown in Fig. 7. For sound reception, a microphone button may replace the oscillator. The dimensions of the rod connection are chosen so that the direct sound wave and the wave reflected from the plate C<1> reinforce one another at the end connected with the oscillator so that the vibration-amplitude is greater than at the plate C<1>. The distance between the point at which the direct and reflected compression waves meet, and the point of maximum vibration-amplitude, should be an odd multiple of the quarter wavelength of the sound in the material of the rod. An effect equivalent to that obtained by variations in the cross-section and length of the rod may be obtained by the use of a weight or weights mounted on, and adjustable along, the rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US160798XA | 1920-03-26 | 1920-03-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB160798A true GB160798A (en) | 1922-07-24 |
Family
ID=21775277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9172/21A Expired GB160798A (en) | 1920-03-26 | 1921-03-24 | Improvements in or relating to sound emitting and receiving devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB160798A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034004A1 (en) * | 2018-08-17 | 2020-02-20 | William Smith | Leak detection and location system |
-
1921
- 1921-03-24 GB GB9172/21A patent/GB160798A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020034004A1 (en) * | 2018-08-17 | 2020-02-20 | William Smith | Leak detection and location system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US1380869A (en) | Submarine signaling | |
| GB1098927A (en) | A new or improved blind aid | |
| ES8104888A1 (en) | Resonant electroacoustic transducer with increased band width response | |
| GB160798A (en) | Improvements in or relating to sound emitting and receiving devices | |
| FI74183B (en) | PIEZOELEKTRISK OMVANDLARE. | |
| US2971597A (en) | Electro-acoustic devices | |
| US1632331A (en) | Submarine sound receiver | |
| US1318739A (en) | Ifessendenv of bbookilne | |
| GB147937A (en) | Improvements in sound-producing or receiving devices containing two or more vibratory structures | |
| US3351900A (en) | Acoustic transducer for use in dense medium | |
| US1129565A (en) | Sound-receiving apparatus used in submarine sound-signaling. | |
| GB191509912A (en) | Improvements in or relating to the Reception and Transmission of Sound or Compressional Waves. | |
| GB157229A (en) | Submarine sound receiving plant | |
| US1581334A (en) | Vibration-detecting device | |
| KR102079521B1 (en) | Vibration Speaker Unit | |
| US1496746A (en) | Submarine signaling device | |
| RU188744U1 (en) | Dual element electroacoustic transducer for parametric generation of acoustic signals | |
| JPS58193475A (en) | Ultrasonic reflection type detector | |
| JPS6120199B2 (en) | ||
| US852648A (en) | Art of submarine signaling. | |
| US1549550A (en) | Telephone instrument | |
| GB202938A (en) | Improvements in acoustic apparatus | |
| SU361454A1 (en) | ELECTROMECHANICAL CONVERTER | |
| US1354299A (en) | Sound-direction indicator | |
| US1564192A (en) | Hydrophone |