JPS5573121A - Tuning fork type oscillating element - Google Patents
Tuning fork type oscillating elementInfo
- Publication number
- JPS5573121A JPS5573121A JP14621378A JP14621378A JPS5573121A JP S5573121 A JPS5573121 A JP S5573121A JP 14621378 A JP14621378 A JP 14621378A JP 14621378 A JP14621378 A JP 14621378A JP S5573121 A JPS5573121 A JP S5573121A
- Authority
- JP
- Japan
- Prior art keywords
- oscillation
- main
- flection
- tuning fork
- fork arm
- 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
- 230000010355 oscillation Effects 0.000 abstract 7
- 230000010360 secondary oscillation Effects 0.000 abstract 6
- 239000013078 crystal Substances 0.000 abstract 5
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000003287 optical effect Effects 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
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/21—Crystal tuning forks
Landscapes
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
PURPOSE:To obtain a crystal oscillator excelling in the temperature properties by using the twist oscillation and the 1st or 2nd higher harmonic of the flection oscillation for the main and secondary oscillations respectively and securing more than 10-fold resonance resistance for the secondary oscillation compared with the main oscillation for coupling to the main oscillation. CONSTITUTION:The electric, mechanical and optical axes of the crystal ore are referred to as X, Y and Z respectively. And the crystal plate featuring the plate face of face XY' formed by giving the theta-turn to face XY round the X axis, and then crystal oscillator main body 6 is cut out so that the tuning fork arm may be turned toward the Y' axis. Electrode 7 and concavity 9 are provided to oscillator 6 and the fixed area of the tuning fork arm respectively, and then plug 8 is provided to form a crystal oscillator. For this oscillator, the twist oscillation and the higher harmonic of the flection oscillation are fiven to the main and secondary oscillations with the thickness of the tuning fork arm set to a proper value. Thus the combination is secured between the main and secondary oscillations. The length from the root of the fork arm is set to 1, and concavity 9 is provided within the range of 0.65-0.85 in the case of the secondary oscillation of the flection 1st higher harmonic and 0.85-0.95 in the case of the flection 2nd higher harmonic respectively. As a result, the resistance of the secondary oscillation becomes more than 10 times as high as the main oscillation, thus preventing the frequency jump at the time of the temperature change.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14621378A JPS5573121A (en) | 1978-11-27 | 1978-11-27 | Tuning fork type oscillating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14621378A JPS5573121A (en) | 1978-11-27 | 1978-11-27 | Tuning fork type oscillating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5573121A true JPS5573121A (en) | 1980-06-02 |
Family
ID=15402660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14621378A Pending JPS5573121A (en) | 1978-11-27 | 1978-11-27 | Tuning fork type oscillating element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5573121A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7915793B2 (en) * | 2006-02-06 | 2011-03-29 | Hitachi, Ltd. | Thin film tuning-fork type inflection resonator and electric signal processing element |
-
1978
- 1978-11-27 JP JP14621378A patent/JPS5573121A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7915793B2 (en) * | 2006-02-06 | 2011-03-29 | Hitachi, Ltd. | Thin film tuning-fork type inflection resonator and electric signal processing element |
| US8102102B2 (en) | 2006-02-06 | 2012-01-24 | Hitachi, Ltd. | Thin film tuning-fork type inflection resonator and electric signal processing element |
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