GB749930A - Improvements in or relating to transducers - Google Patents
Improvements in or relating to transducersInfo
- Publication number
- GB749930A GB749930A GB5964/54A GB596454A GB749930A GB 749930 A GB749930 A GB 749930A GB 5964/54 A GB5964/54 A GB 5964/54A GB 596454 A GB596454 A GB 596454A GB 749930 A GB749930 A GB 749930A
- Authority
- GB
- United Kingdom
- Prior art keywords
- elements
- sound
- transducer
- annular
- wall
- 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
- 239000000463 material Substances 0.000 abstract 2
- 230000002463 transducing effect Effects 0.000 abstract 2
- 229920001875 Ebonite Polymers 0.000 abstract 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract 1
- 229910002113 barium titanate Inorganic materials 0.000 abstract 1
- 239000004359 castor oil Substances 0.000 abstract 1
- 235000019438 castor oil Nutrition 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 230000001902 propagating effect Effects 0.000 abstract 1
- 230000002787 reinforcement Effects 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 238000004078 waterproofing Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
- B06B1/0629—Square array
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
749,930. Sound transmitting and receiving devices. BENDIX AVIATION CORPORATION. March 1, 1954 [March 31, 1953], No. 5964/54. Class 40 (4). In a transducer primarily intended for underwater use, an array of radially - responsive annular transducing elements having their outer surfaces acoustically decoupled from each other are located in a recess in a sound transmitting member forming the front wall of a container, the depth of the recess being equal to the thickness of the transducing elements. As shown in Figs. 1 to 3, the array of annular, radially - responsive trans-. ducing elements 10 are located in an enclosure between a solid vibrationreflecting wall 20 and a recessed soundtransmitting member 14, the outer surface of each element being acoustically insulated by a ring 44 of sound absorptive material while the elements are positioned in individual pockets which are formed in the recessed member by integral bosses 17. The elements may be formed from an annular ceramic dielectric which comprises barium titanate and utilizes inner and outer electrodes consisting of fused silver films, the electrodes being connected in parallel to a screened lead 30 by bus-bars 35-38 arranged in slots 40 in the member 14. An outer member 22 of hard rubber is secured to the member 14 by screws 27 which engage peripherally-embedded metal reinforcement 25, 26, a waterproofing compound being interposed. A layer of soundabsorptive material 23 is located between the member 22 and the wall 20, this layer and the rings 44 being formed of soft air cell rubber or corprene. The sound-transmitting member 14 is formed of rubber composition which has an acoustic impedance matching the medium, e.g. water, in which the transducer is to operate. A matching choke 43 located in a cavity 48 is connected in series with the elements and the free space within the transducer is filled with a sound propagating medium such as castor oil through a closable aperture 46. Alternatively only the pockets in the member 14 are filled before assembly, the oil being then restricted to this region by suitable sealing. Specifications 583,639 and 601,477, [both in Group V], are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US749930XA | 1953-03-31 | 1953-03-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB749930A true GB749930A (en) | 1956-06-06 |
Family
ID=22122870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5964/54A Expired GB749930A (en) | 1953-03-31 | 1954-03-01 | Improvements in or relating to transducers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB749930A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0181506A2 (en) * | 1984-10-15 | 1986-05-21 | Edo Corporation/Western Division | Flexible piezoelectric transducer assembly |
| US5444323A (en) * | 1992-10-27 | 1995-08-22 | Brazil; Harry | Acoustic broom |
| GB2290002A (en) * | 1994-05-31 | 1995-12-06 | Thomson Csf | Passive acoustic antenna |
| WO2004105176A2 (en) * | 2003-05-23 | 2004-12-02 | Atlas Elektronik Gmbh | Underwater antenna with electroacoustic transducers embedded in a casting compound |
| CN102183293A (en) * | 2011-03-01 | 2011-09-14 | 中国船舶重工集团公司第七一五研究所 | Large-area sheet-type vector hydrophone |
-
1954
- 1954-03-01 GB GB5964/54A patent/GB749930A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0181506A2 (en) * | 1984-10-15 | 1986-05-21 | Edo Corporation/Western Division | Flexible piezoelectric transducer assembly |
| EP0181506A3 (en) * | 1984-10-15 | 1987-03-25 | Edo Corporation/Western Division | Flexible piezoelectric transducer assembly |
| US5444323A (en) * | 1992-10-27 | 1995-08-22 | Brazil; Harry | Acoustic broom |
| GB2290002A (en) * | 1994-05-31 | 1995-12-06 | Thomson Csf | Passive acoustic antenna |
| GB2290002B (en) * | 1994-05-31 | 1998-01-28 | Thomson Csf | Absorbent passive acoustic antenna |
| WO2004105176A2 (en) * | 2003-05-23 | 2004-12-02 | Atlas Elektronik Gmbh | Underwater antenna with electroacoustic transducers embedded in a casting compound |
| WO2004105176A3 (en) * | 2003-05-23 | 2005-02-24 | Atlas Elektronik Gmbh | Underwater antenna with electroacoustic transducers embedded in a casting compound |
| CN102183293A (en) * | 2011-03-01 | 2011-09-14 | 中国船舶重工集团公司第七一五研究所 | Large-area sheet-type vector hydrophone |
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