GB914814A - Improvements in or relating to the frequency trimming of piezo-electric resonator units - Google Patents
Improvements in or relating to the frequency trimming of piezo-electric resonator unitsInfo
- Publication number
- GB914814A GB914814A GB2193559A GB2193559A GB914814A GB 914814 A GB914814 A GB 914814A GB 2193559 A GB2193559 A GB 2193559A GB 2193559 A GB2193559 A GB 2193559A GB 914814 A GB914814 A GB 914814A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piezo
- oscillator
- electrodes
- heat
- relating
- 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
- 238000009966 trimming Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 abstract 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract 2
- 239000013078 crystal Substances 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052737 gold Inorganic materials 0.000 abstract 1
- 239000010931 gold Substances 0.000 abstract 1
- 229910052736 halogen Inorganic materials 0.000 abstract 1
- 150000002367 halogens Chemical class 0.000 abstract 1
- 229910052742 iron Inorganic materials 0.000 abstract 1
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- 238000005476 soldering 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
- H03H3/04—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 for obtaining desired frequency or temperature coefficient
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
914,814. Piezo-electric crystals. KRISTALLVERARBELTUNG NECKARBISHOFSHEIM G.m.b.H. June 26, 1959 [June 26, 1958], No. 21935/59. Class 40 (8). Frequency-trimming of a piezo-electric oscillator is effected by evaporating material on to the oscillator using a heat source outside the sealed envelope. In the case of an electroded oscillator 1, Fig. 1, the material 3a is contained in depressions 13 in the walls of the sealed container 4 opposite the electrodes 2a, 2b. Heat is applied to the material by means of e.g. a soldering iron. The material may be gold, silver or a non-metal such as a halogen. It is selected to differ from the material of the electrodes and of the envelope particularly as regards melting-point, vapour pressure and heat conductivity. The oscillator 1a of Fig. 2 is provided with separate electrodes 10a, 10b and these are formed with depressions to contain material 3a to be evaporated. Heat is applied through the mounting screws of the electrodes. The envelopes may be evacuated or may be gas-filled.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK35147A DE1177698B (en) | 1958-06-26 | 1958-06-26 | Arrangement for frequency adjustment in piezoelectric oscillating crystals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB914814A true GB914814A (en) | 1963-01-02 |
Family
ID=7220253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2193559A Expired GB914814A (en) | 1958-06-26 | 1959-06-26 | Improvements in or relating to the frequency trimming of piezo-electric resonator units |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE1177698B (en) |
| FR (1) | FR1228698A (en) |
| GB (1) | GB914814A (en) |
| NL (2) | NL240667A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199985A (en) * | 1986-12-22 | 1988-07-20 | Raytheon Co | Surface acoustic wave device |
| GB2236616A (en) * | 1989-10-04 | 1991-04-10 | Stc Plc | Crystal frequency adjustment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2505370A (en) * | 1947-11-08 | 1950-04-25 | Bell Telephone Labor Inc | Piezoelectric crystal unit |
| DE872966C (en) * | 1951-01-26 | 1953-04-09 | Quarzkeramik G M B H | Frequency adjustment of oscillating crystals |
| US2765765A (en) * | 1952-09-03 | 1956-10-09 | Robert R Bigler | Apparatus for the manufacture of piezoelectric crystals |
| US2816239A (en) * | 1954-10-22 | 1957-12-10 | James Knights Company | Sealed crystal assembly |
-
0
- NL NL110850D patent/NL110850C/xx active
- NL NL240667D patent/NL240667A/xx unknown
-
1958
- 1958-06-26 DE DEK35147A patent/DE1177698B/en active Pending
-
1959
- 1959-06-26 FR FR798599A patent/FR1228698A/en not_active Expired
- 1959-06-26 GB GB2193559A patent/GB914814A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2199985A (en) * | 1986-12-22 | 1988-07-20 | Raytheon Co | Surface acoustic wave device |
| GB2241822A (en) * | 1986-12-22 | 1991-09-11 | Raytheon Co | Surface wave acoustic device |
| GB2199985B (en) * | 1986-12-22 | 1991-09-11 | Raytheon Co | Surface acoustic wave device |
| GB2241823A (en) * | 1986-12-22 | 1991-09-11 | Raytheon Co | Surface acoustic wave device |
| GB2241822B (en) * | 1986-12-22 | 1991-11-27 | Raytheon Co | Surface acoustic wave device |
| GB2241823B (en) * | 1986-12-22 | 1991-11-27 | Raytheon Co | Surface acoustic wave device |
| GB2236616A (en) * | 1989-10-04 | 1991-04-10 | Stc Plc | Crystal frequency adjustment |
| GB2236616B (en) * | 1989-10-04 | 1993-03-31 | Stc Plc | Crystal frequency adjustment |
Also Published As
| Publication number | Publication date |
|---|---|
| NL110850C (en) | |
| NL240667A (en) | |
| DE1177698B (en) | 1964-09-10 |
| FR1228698A (en) | 1960-08-31 |
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