JPS6416913A - Vibration gyro - Google Patents
Vibration gyroInfo
- Publication number
- JPS6416913A JPS6416913A JP17263487A JP17263487A JPS6416913A JP S6416913 A JPS6416913 A JP S6416913A JP 17263487 A JP17263487 A JP 17263487A JP 17263487 A JP17263487 A JP 17263487A JP S6416913 A JPS6416913 A JP S6416913A
- Authority
- JP
- Japan
- Prior art keywords
- vibrator
- support rod
- vibration frequency
- mode
- driving
- 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.)
- Granted
Links
- 238000001514 detection method Methods 0.000 abstract 1
Landscapes
- Gyroscopes (AREA)
Abstract
PURPOSE:To improve angular speed detection accuracy by giving the same polarity to four driving piezoelectric elements provided to a vibrator and equalizing the natural vibration frequency of the secondary mode of a support rod provided with the detecting piezoelectric elements to the driving vibration frequency of the primary mode of the vibrator. CONSTITUTION:The four driving piezoelectric elements 5 are provided having the same polarity and a detecting piezoelectric element 6 is stuck on the support rod 3. Then the sectional shape of the support rod 3 is so set that the natural vibration frequency of its secondary mode is equal to the driving vibration frequency of the primary mode of the vibrator 2. Here, when AC voltages which are equal to the primary-mode natural vibration frequency of the vibrator 2 and has the same polarity are applied to the four elements 5, the vibrator 2 resonates to have the maximum amplitude in its breadthwise direction. When an angular velocity by rotated in a plane orthogonal to the cylinder center of a casing 4 is added to the vibration gyro 10, the vibrator 2 generates a Corioli's force in its thickness direction. This Corioli's force causes the support rod 3 to deforms by deflection in a horizontal surface, thereby causing vibrations in secondary mode. The deflection deformation of the support rod 3 generates a voltage across the element 6, so that the angular speed is detected.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17263487A JP2596752B2 (en) | 1987-07-10 | 1987-07-10 | Vibrating gyro |
| DE19883884481 DE3884481T2 (en) | 1987-07-10 | 1988-07-08 | Oscillating gyroscope. |
| EP19880110969 EP0298511B1 (en) | 1987-07-10 | 1988-07-08 | Vibration gyro |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17263487A JP2596752B2 (en) | 1987-07-10 | 1987-07-10 | Vibrating gyro |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6416913A true JPS6416913A (en) | 1989-01-20 |
| JP2596752B2 JP2596752B2 (en) | 1997-04-02 |
Family
ID=15945516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17263487A Expired - Lifetime JP2596752B2 (en) | 1987-07-10 | 1987-07-10 | Vibrating gyro |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2596752B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5655863B2 (en) * | 2010-12-15 | 2015-01-21 | 株式会社村田製作所 | Vibrating gyro |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238313A (en) * | 1985-08-13 | 1987-02-19 | Tokyo Keiki Co Ltd | Gyro device |
| JPS62106314A (en) * | 1985-11-01 | 1987-05-16 | Tokyo Koku Keiki Kk | Vibration gyroscope |
-
1987
- 1987-07-10 JP JP17263487A patent/JP2596752B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6238313A (en) * | 1985-08-13 | 1987-02-19 | Tokyo Keiki Co Ltd | Gyro device |
| JPS62106314A (en) * | 1985-11-01 | 1987-05-16 | Tokyo Koku Keiki Kk | Vibration gyroscope |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5655863B2 (en) * | 2010-12-15 | 2015-01-21 | 株式会社村田製作所 | Vibrating gyro |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2596752B2 (en) | 1997-04-02 |
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