GB611738A - Improvements in piezo-electric crystal vibrators - Google Patents
Improvements in piezo-electric crystal vibratorsInfo
- Publication number
- GB611738A GB611738A GB3441645A GB3441645A GB611738A GB 611738 A GB611738 A GB 611738A GB 3441645 A GB3441645 A GB 3441645A GB 3441645 A GB3441645 A GB 3441645A GB 611738 A GB611738 A GB 611738A
- Authority
- GB
- United Kingdom
- Prior art keywords
- adhesive
- plate
- plates
- wires
- grid
- 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 3
- 239000000853 adhesive Substances 0.000 abstract 5
- 230000001070 adhesive effect Effects 0.000 abstract 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 239000011928 denatured alcohol Substances 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000010453 quartz Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- DHKHKXVYLBGOIT-UHFFFAOYSA-N 1,1-Diethoxyethane Chemical compound CCOC(C)OCC DHKHKXVYLBGOIT-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 239000011354 acetal resin Substances 0.000 abstract 1
- 239000012790 adhesive layer Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000010410 layer Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920006324 polyoxymethylene Polymers 0.000 abstract 1
- 239000002904 solvent Substances 0.000 abstract 1
- 229920002554 vinyl polymer Polymers 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02086—Means for compensation or elimination of undesirable effects
- H03H9/02094—Means for compensation or elimination of undesirable effects of adherence
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/58—Multiple crystal filters
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Joining Of Glass To Other Materials (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
611,738. Compound sheet materials. SMITH, B. S., PRATT, E. W., and WRIGHT, C. S. Dec. 19, 1945, No. 34416. [Class 140] [Also in Groups XXXIX and XL(c)] In a piezo-electric crystal vibrator consisting of crystal plates s adhesively secured between metal plates, each adhesive joint embodies a grid of soft metal wires or other filaments so as to ensure a predetermined thickness of the adhesive layer when the parts are pressed together. The invention is described as applied to a sub-aqueous compressional wave sender and receiver as in Specification 611,739, [Group XL(c)], in which it is required to stick quartz plates to a steel plate b<1>. The parts are cleaned with methylated spirit and while heated are coated with a solution of a polyvinyl acetal resin in methylated spirit. A ring plate i carrying a grid j of fine copper wires or plastic filaments is laid on the adhesive coating, and the whole is heated to drive off the solvent and to bind the adhesive to the steel. When the plate has cooled the ring i is forced downwards to break off the wires at the outer edge of the plate b<1>. A desired pattern of quartz plates is arranged on the plate b<1> by means of a template which is then removed. Another face plate is similarly prepared, and an interplate is prepared by coating both faces with adhesive and a grid of wires. The two face plates are then applied to the opposite faces of the interplate and the whole is heated to about 160‹C with about 1 ton pressure and allowed to cool with full pressure maintained. This gives a constant thickness layer of adhesive in the finished unit, being slightly less than the original diameter of the wire as this is somewhat flattened in the process.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3441645A GB611738A (en) | 1945-12-19 | 1945-12-19 | Improvements in piezo-electric crystal vibrators |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3441645A GB611738A (en) | 1945-12-19 | 1945-12-19 | Improvements in piezo-electric crystal vibrators |
Publications (1)
Publication Number | Publication Date |
---|---|
GB611738A true GB611738A (en) | 1948-11-03 |
Family
ID=10365372
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3441645A Expired GB611738A (en) | 1945-12-19 | 1945-12-19 | Improvements in piezo-electric crystal vibrators |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB611738A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8779326B2 (en) | 2006-11-08 | 2014-07-15 | Tel Solar Ag | Method and apparatus for laser beam alignment for solar panel scribing |
-
1945
- 1945-12-19 GB GB3441645A patent/GB611738A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8779326B2 (en) | 2006-11-08 | 2014-07-15 | Tel Solar Ag | Method and apparatus for laser beam alignment for solar panel scribing |
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