GB574463A - Improvements in or relating to piezoelectric transducers - Google Patents
Improvements in or relating to piezoelectric transducersInfo
- Publication number
- GB574463A GB574463A GB525/44A GB52544A GB574463A GB 574463 A GB574463 A GB 574463A GB 525/44 A GB525/44 A GB 525/44A GB 52544 A GB52544 A GB 52544A GB 574463 A GB574463 A GB 574463A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boundary element
- crystal
- heating
- providing
- fusible
- 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 abstract 7
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000004020 conductor Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract 1
- DJHGAFSJWGLOIV-UHFFFAOYSA-K Arsenate3- Chemical class [O-][As]([O-])([O-])=O DJHGAFSJWGLOIV-UHFFFAOYSA-K 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 229910019142 PO4 Inorganic materials 0.000 abstract 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 235000021317 phosphate Nutrition 0.000 abstract 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 abstract 1
- 229910052700 potassium Inorganic materials 0.000 abstract 1
- 239000011591 potassium Substances 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
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 235000011006 sodium potassium tartrate Nutrition 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 238000003466 welding Methods 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49009—Dynamoelectric machine
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/47—Molded joint
- Y10T403/477—Fusion bond, e.g., weld, etc.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Surgical Instruments (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
574,463. Piezo - electric crystals. BRUSH DEVELOPMENT CO. Jan. 11, 1944, No. 525. Convention date, Jan. 11, 1943. [Class 40 (v)] A method of electroding a fusible piezoelectric crystal element 3 comprises providing one face, over less than its total area, with a layer 5 of conductive material such as colloidal graphite, providing the layer with a boundary element 7 of metal foil formed with a lead extension, and heating the boundary element sufficiently to fuse the adjacent part of the crystal surface so as to autogenously weld the element 7 to the crystal and to the electrode area 5. The welding operation is shown in Fig. 3 in which a boundary element 7 is placed between two crystal plates 1, 3, each provided with a central electrode, the assembly being held by a weight 13 on a non-conducting support 11. Heating is performed by inducing a high-frequency current in the boundary element by means of a coil 15 energized by a generator 17 controlled by a time switch 19. Alternatively, the heating may be performed by passing a current directly through the boundary element which is then made as an open loop providing two lead conductors. The method may be used to make a multiple stack of crystal plates, and is applicable to all fusible piezo-electric crystals such as Rochelle salt and isomorphous substances and the primary arsenates and phosphates of sodium, potassium and ammonium. Specifications 318,934, [Class 40 (v)], 454,595, 485,135 and U.S.A. Specifications 2,168,943 and Re. 20,213 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US471968A US2388242A (en) | 1943-01-11 | 1943-01-11 | Piezoelectric transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB574463A true GB574463A (en) | 1946-01-07 |
Family
ID=23873698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB525/44A Expired GB574463A (en) | 1943-01-11 | 1944-01-11 | Improvements in or relating to piezoelectric transducers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2388242A (en) |
| GB (1) | GB574463A (en) |
Families Citing this family (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2497665A (en) * | 1945-02-07 | 1950-02-14 | Brush Dev Co | Piezoelectric device |
| US2472714A (en) * | 1945-04-16 | 1949-06-07 | Massa Frank | Piezoelectric sound pressure microphone |
| US2479987A (en) * | 1947-10-11 | 1949-08-23 | Brush Dev Co | Multiplate electrotransducer |
| US2479926A (en) * | 1947-10-11 | 1949-08-23 | Brush Dev Co | Electrotransducer and method of making same |
| US2624853A (en) * | 1948-12-28 | 1953-01-06 | Brush Dev Co | Flexure-sensitive electromechanical transducer device |
| BE492967A (en) * | 1948-12-28 | |||
| US2641212A (en) * | 1949-07-28 | 1953-06-09 | Western Electric Co | Magnetic holding fixture for soldering terminals |
| US2660680A (en) * | 1950-08-09 | 1953-11-24 | Bell Telephone Labor Inc | Crystal temperature control means |
| US2701909A (en) * | 1950-10-11 | 1955-02-15 | Gen Electric | Method of making glass to metal seals |
| US2882377A (en) * | 1951-10-24 | 1959-04-14 | Pittsburgh Plate Glass Co | Electrical resistor metal coatings on refractory materials |
| US3410989A (en) * | 1966-11-14 | 1968-11-12 | Corning Glass Works | Heat transfer members and method of fabrication thereof |
| US4354133A (en) * | 1980-08-29 | 1982-10-12 | The United States Of America As Represented By The Secretary Of The Army | Hermetically sealed container |
| FR2519503B1 (en) * | 1981-12-31 | 1991-09-06 | Thomson Csf | POLYMERIC PIEZOELECTRIC TRANSDUCERS AND MANUFACTURING METHOD |
| JPS5918663A (en) * | 1982-07-22 | 1984-01-31 | Murata Mfg Co Ltd | Method of containing electronic component into case |
| US4721543A (en) * | 1982-09-30 | 1988-01-26 | Burr-Brown Corporation | Hermetic sealing device |
| US4869616A (en) * | 1984-03-26 | 1989-09-26 | The Torrington Company | Universal joint cross |
| US4741796A (en) * | 1985-05-29 | 1988-05-03 | Siemens Aktiengesellschaft | Method for positioning and bonding a solid body to a support base |
| DE3520085A1 (en) * | 1985-06-05 | 1986-12-11 | Philips Patentverwaltung Gmbh, 2000 Hamburg | METHOD FOR PRODUCING A HERMETICALLY CLOSED COMPONENT HOUSING, ESPECIALLY FOR SWING QUARTZ |
| US4639631A (en) * | 1985-07-01 | 1987-01-27 | Motorola, Inc. | Electrostatically sealed piezoelectric device |
| US4846916A (en) * | 1985-12-27 | 1989-07-11 | Matsushita Electric Industrial Co., Ltd. | Method of manufacturing electric carpet via induction heating |
| US4875750A (en) * | 1987-02-25 | 1989-10-24 | Siemens Aktiengesellschaft | Optoelectronic coupling element and method for its manufacture |
| JPH07263991A (en) * | 1994-03-18 | 1995-10-13 | Fujitsu Ltd | Manufacture of serial resonance device using conductive adhesive resin |
| US6474435B1 (en) | 2000-09-07 | 2002-11-05 | Trw Vehicle Safety Systems Inc. | Means for electrical connection of components in a vehicle occupant protection system |
| US6803700B2 (en) * | 2002-06-06 | 2004-10-12 | Caterpillar Inc. | Piezoelectric device |
| CA2708020C (en) * | 2009-06-24 | 2016-05-10 | Research In Motion Limited | Piezoelectric assembly |
| JP5466102B2 (en) * | 2010-07-08 | 2014-04-09 | セイコーインスツル株式会社 | Manufacturing method of glass substrate with through electrode and manufacturing method of electronic component |
| CN103280523B (en) | 2013-06-18 | 2015-03-25 | 厦门乃尔电子有限公司 | Method for manufacturing high-temperature piezoelectric element electrode and piezoelectric element structure |
-
1943
- 1943-01-11 US US471968A patent/US2388242A/en not_active Expired - Lifetime
-
1944
- 1944-01-11 GB GB525/44A patent/GB574463A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2388242A (en) | 1945-11-06 |
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