GB665189A - Method of manufacturing piezoelectric crystal devices - Google Patents
Method of manufacturing piezoelectric crystal devicesInfo
- Publication number
- GB665189A GB665189A GB19864/50A GB1986450A GB665189A GB 665189 A GB665189 A GB 665189A GB 19864/50 A GB19864/50 A GB 19864/50A GB 1986450 A GB1986450 A GB 1986450A GB 665189 A GB665189 A GB 665189A
- Authority
- GB
- United Kingdom
- Prior art keywords
- housing
- crystal
- cemented
- piezo
- length
- 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
- 239000013078 crystal Substances 0.000 title abstract 6
- 238000004519 manufacturing process Methods 0.000 title 1
- 229910001369 Brass Inorganic materials 0.000 abstract 1
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract 1
- 239000010951 brass Substances 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000007799 cork Substances 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- LJCNRYVRMXRIQR-OLXYHTOASA-L potassium sodium L-tartrate Chemical compound [Na+].[K+].[O-]C(=O)[C@H](O)[C@@H](O)C([O-])=O LJCNRYVRMXRIQR-OLXYHTOASA-L 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- 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
- B06B1/0644—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 a single piezoelectric element
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Abstract
665,189. Piezo-electric instruments. BRUSH DEVELOPMENT CO. Oct. 22, 1947 [July 30, 1942], No. 19864/50. Divided out of 665,100 under which a Specification was laid open to inspection under Sect. 91 of the Acts, May 31, 1948. Class 40 (iv). [Also in Group XL (b)] A piezo-electric instrument is made by fixing the crystal element to the flexible base of its drum - shaped housing, levelling the free face of the crystal or the adjacent end of the housing so that they lie in the same plane and then closing the housing by a flexible closure which is arranged to be in contact with the crystal. As shown, a subaqueous transmitter or microphone comprises a 45 degree X-cut Rochelle salt crystal element 17 cemented to a thin phosphor bronze diaphragm 23 which is secured to the brass housing 21 by a threaded rim 5. The opposite end of the crystal or the housing is then ground until they are co-planar and a similar end closure is cemented in position. A layer 12 of cork is also provided in the housing. The instrument is less than half a wave-length in length and width at 50 kc/s.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US452906A US2413462A (en) | 1942-07-30 | 1942-07-30 | Transducer |
| US665190XA | 1944-06-02 | 1944-06-02 | |
| US665100XA | 1946-11-30 | 1946-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB665189A true GB665189A (en) | 1952-01-16 |
Family
ID=27370984
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB19864/50A Expired GB665189A (en) | 1942-07-30 | 1947-10-22 | Method of manufacturing piezoelectric crystal devices |
| GB28242/47A Expired GB665100A (en) | 1942-07-30 | 1947-10-22 | Method of manufacturing piezoelectric crystal devices |
| GB19865/50A Expired GB665190A (en) | 1942-07-30 | 1947-10-22 | Method of manufacturing piezoelectric crystal devices |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB28242/47A Expired GB665100A (en) | 1942-07-30 | 1947-10-22 | Method of manufacturing piezoelectric crystal devices |
| GB19865/50A Expired GB665190A (en) | 1942-07-30 | 1947-10-22 | Method of manufacturing piezoelectric crystal devices |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2413462A (en) |
| GB (3) | GB665189A (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2477246A (en) * | 1945-05-16 | 1949-07-26 | Bell Telephone Labor Inc | Submarine signaling device |
| US2605346A (en) * | 1945-09-18 | 1952-07-29 | Roland M Goglick | Waterproof microphone |
| US2546313A (en) * | 1946-12-26 | 1951-03-27 | Brush Dev Co | Testing instrument for acoustic devices |
| US2613261A (en) * | 1948-12-08 | 1952-10-07 | Massa Frank | Underwater transducer |
| US2689947A (en) * | 1949-09-26 | 1954-09-21 | William J Fry | Variable resonant frequency ultrasonic generator |
| US3090939A (en) * | 1953-05-13 | 1963-05-21 | Massa Frank | Tessellated electromechanical transducer element |
| US2842686A (en) * | 1954-03-03 | 1958-07-08 | Musser C Walton | Piezoelectric gage |
| US3054982A (en) * | 1959-02-16 | 1962-09-18 | Robert J Kieser | Hydrostatic pressure transducer |
| US3149301A (en) * | 1959-09-01 | 1964-09-15 | Charles E Green | Electroacoustic transducer |
| US3221296A (en) * | 1960-01-21 | 1965-11-30 | Allen R Milne | Spherical hydrophone |
| US3469445A (en) * | 1967-07-20 | 1969-09-30 | United Aircraft Corp | Gas flow measuring system |
| DK148428C (en) * | 1983-02-03 | 1985-11-25 | Grundfos As | LEVEL DETECTOR WITH A PIEZOELECTRIC CRYSTAL |
| JP5627799B2 (en) * | 2012-08-10 | 2014-11-19 | 京セラ株式会社 | SOUND GENERATOR, SOUND GENERATOR, AND ELECTRONIC DEVICE |
-
1942
- 1942-07-30 US US452906A patent/US2413462A/en not_active Expired - Lifetime
-
1947
- 1947-10-22 GB GB19864/50A patent/GB665189A/en not_active Expired
- 1947-10-22 GB GB28242/47A patent/GB665100A/en not_active Expired
- 1947-10-22 GB GB19865/50A patent/GB665190A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB665100A (en) | 1952-01-16 |
| US2413462A (en) | 1946-12-31 |
| GB665190A (en) | 1952-01-16 |
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