JPS57171818A - Adjusting method for frequency of piezoelectric tuning fork - Google Patents
Adjusting method for frequency of piezoelectric tuning forkInfo
- Publication number
- JPS57171818A JPS57171818A JP5749881A JP5749881A JPS57171818A JP S57171818 A JPS57171818 A JP S57171818A JP 5749881 A JP5749881 A JP 5749881A JP 5749881 A JP5749881 A JP 5749881A JP S57171818 A JPS57171818 A JP S57171818A
- Authority
- JP
- Japan
- Prior art keywords
- tuning fork
- frequency
- leg parts
- oscillator
- base
- 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.)
- Pending
Links
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000011888 foil Substances 0.000 abstract 1
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000009966 trimming 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
- H03H3/013—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical 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
PURPOSE:To achieve trimming without losing the left-right balance of a tuning fork and decreasing a Q factor, by adjusting the frequency by forming a groove in the center of a tuning fork oscillator base in its width direction a the root part of oscillator leg parts. CONSTITUTION:A piezoelectric film 5 is formed over the external surfaces of the oscillation leg parts 2 and 3 of a tuning fork oscillator 1, and the external entire surface of a base part 4 succeeding to the leg parts 2 and 3. At the root part of the leg parts 2 and 3, a V-shaped groove 12 is formed from the center position of the oscillator base in its direction of its width W toward the tuning fork oscillator base 4. For the formation of the groove 12, for example, extremely thin foil 13 is used. Thus, the frequency is lowered. In the figure, 6' is an electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5749881A JPS57171818A (en) | 1981-04-15 | 1981-04-15 | Adjusting method for frequency of piezoelectric tuning fork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5749881A JPS57171818A (en) | 1981-04-15 | 1981-04-15 | Adjusting method for frequency of piezoelectric tuning fork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57171818A true JPS57171818A (en) | 1982-10-22 |
Family
ID=13057387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5749881A Pending JPS57171818A (en) | 1981-04-15 | 1981-04-15 | Adjusting method for frequency of piezoelectric tuning fork |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57171818A (en) |
-
1981
- 1981-04-15 JP JP5749881A patent/JPS57171818A/en active Pending
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