GB8803769D0 - Oscillatory angular speed detecting apparatus - Google Patents
Oscillatory angular speed detecting apparatusInfo
- Publication number
- GB8803769D0 GB8803769D0 GB8803769A GB8803769A GB8803769D0 GB 8803769 D0 GB8803769 D0 GB 8803769D0 GB 8803769 A GB8803769 A GB 8803769A GB 8803769 A GB8803769 A GB 8803769A GB 8803769 D0 GB8803769 D0 GB 8803769D0
- Authority
- GB
- United Kingdom
- Prior art keywords
- readout
- angular speed
- signal
- amplitude
- drive
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C19/00—Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects
- G01C19/56—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces
- G01C19/5642—Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating bars or beams
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Gyroscopes (AREA)
Abstract
An oscillatory angular speed detecting apparatus comprises a pillar-shaped oscillator body 1 and drive and readout piezoelectric transducers 2a, 2b attached to first and second side surfaces of the oscillator body, the first side surface being perpendicular to the second side surface. Oscillation of the oscillator body is transduced into a readout signal by the readout piezoelectric transducer 2b, and a phase detecting device 15 detects variations of phases of drive and readout signals, and an amplitude detecting device 18 detects variations of amplitudes of the readout signals. The angular speed is derived from these phases and amplitude. A feedback transducer 2c is used for generating the drive signal by circuits 10, 11, 12 and to provide a phase reference for the phase detector 15. The readout signal from the transducer 2b is amplified by an amplifier 16 and is passed to both the phase detector 15 and the amplitude detector 18. DC levels generated at converters 19, 20 are digitized and processed to provide a display signal. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19883805250 DE3805250C2 (en) | 1988-02-19 | 1988-02-19 | Angular velocity detector device |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8803769D0 true GB8803769D0 (en) | 1988-03-16 |
GB2215054A GB2215054A (en) | 1989-09-13 |
GB2215054B GB2215054B (en) | 1992-09-30 |
Family
ID=6347763
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8803769A Expired - Fee Related GB2215054B (en) | 1988-02-19 | 1988-02-18 | Oscillatory angular velocity detecting apparatus |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE3805250C2 (en) |
GB (1) | GB2215054B (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5493166A (en) * | 1988-08-12 | 1996-02-20 | Murata Manufacturing Co., Ltd. | Vibrator and vibrating gyroscope using the same |
US5349857A (en) * | 1988-08-12 | 1994-09-27 | Murata Manufacturing Co., Ltd. | Vibratory gyroscope |
US5874674A (en) * | 1988-08-12 | 1999-02-23 | Murata Manufacturing Co., Ltd. | Vibrator including piezoelectric electrodes or detectors arranged to be non-parallel and non-perpendicular to coriolis force direction and vibratory gyroscope using the same |
GB2223309B (en) * | 1988-08-12 | 1993-08-25 | Murata Manufacturing Co | Vibrator and vibratory gyroscope using the same |
DE69111950T2 (en) * | 1990-08-27 | 1996-03-14 | Murata Manufacturing Co | Signal detector circuit for oscillating gyroscope. |
FR2677127B1 (en) * | 1991-05-31 | 1993-08-13 | Asulab Sa | DEVICE FOR MEASURING AN ANGULAR SPEED. |
JPH0674774A (en) * | 1992-08-27 | 1994-03-18 | Murata Mfg Co Ltd | Drive circuit for gyro |
JPH06147902A (en) * | 1992-11-04 | 1994-05-27 | Murata Mfg Co Ltd | Vibration gyro |
JPH06242135A (en) * | 1993-02-12 | 1994-09-02 | Aisin Seiki Co Ltd | Driving circuit for angular velocity sensor |
JPH07113645A (en) * | 1993-10-15 | 1995-05-02 | Toyota Motor Corp | Vibrating gyro |
JP3479853B2 (en) * | 1994-10-05 | 2003-12-15 | アイシン精機株式会社 | Vibrator drive |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB947310A (en) * | 1960-07-22 | 1964-01-22 | August Karolus | Improvements in or relating to rotation responsive devices |
US3520195A (en) * | 1965-10-11 | 1970-07-14 | Gen Electric | Solid state angular velocity sensing device |
US3515003A (en) * | 1966-07-25 | 1970-06-02 | Honeywell Inc | Vibrating wire angular rate sensor |
US3625067A (en) * | 1969-07-18 | 1971-12-07 | Gen Motors Corp | Device for detecting rotation about an axis and method of using the same |
US4264838A (en) * | 1979-10-01 | 1981-04-28 | Sperry Corporation | Force balanced piezoelectric vibratory rate sensor |
US4409836A (en) * | 1981-11-13 | 1983-10-18 | Motorola, Inc. | Apparatus and method for detecting the cessation of motion of a body |
GB8404668D0 (en) * | 1984-02-22 | 1984-03-28 | Burdess J S | Gyroscopic devices |
CA1234705A (en) * | 1984-03-22 | 1988-04-05 | Suzushi Kimura | Angular velocity sensor |
JPS61193019A (en) * | 1985-02-22 | 1986-08-27 | Yazaki Corp | Oscillating gyro |
-
1988
- 1988-02-18 GB GB8803769A patent/GB2215054B/en not_active Expired - Fee Related
- 1988-02-19 DE DE19883805250 patent/DE3805250C2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
GB2215054A (en) | 1989-09-13 |
GB2215054B (en) | 1992-09-30 |
DE3805250A1 (en) | 1989-08-31 |
DE3805250C2 (en) | 1995-04-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2215054B (en) | Oscillatory angular velocity detecting apparatus | |
EP0940658A4 (en) | Ultrasound sensor for detecting the level of liquids | |
GB2274996A (en) | Apparatus for ultrasonic therapeutic treatment | |
DE3776911D1 (en) | Vibration type weight measuring apparatus | |
EP0594541A3 (en) | Sonotrode for an ultrasound processing apparatus | |
FR2635247B1 (en) | PIEZOELECTRIC TRANSDUCER FOR GENERATING VOLUME WAVES | |
IL81634A (en) | Apparatus for ultrasound detection | |
EP0390560A3 (en) | Suppression of noise from seismic vibrators | |
GB2263773A (en) | Vibratile sensing instrument | |
GB2185321A (en) | Ultrasonic reflex transmission imaging method and apparatus with external reflector | |
US5783897A (en) | Vibrating gyroscope | |
CA2040799A1 (en) | Tape guide device | |
DE59205724D1 (en) | Device for measuring small liquid and particle flows | |
FR2749394B1 (en) | ROTATION MEASURING APPARATUS | |
JPS648955A (en) | Ultrasonic endoscopic apparatus | |
SU1237916A1 (en) | Device or measuring resonance frequency of parts | |
JPH067298Y2 (en) | Vibrating gyro | |
JP3976871B2 (en) | Ultrasonic beauty equipment | |
JPS554580A (en) | Transfusion run-out detector | |
Vroulis et al. | Cavitation in liquid helium using a vibrating piston | |
EP0303776A3 (en) | Ultrasonic energy generator | |
DM | A speckle reference beam holocamera capable of determining the relative phase of mechanical vibrations from an unisolated platform | |
JPH03186253A (en) | Pulse wave detecting device | |
SU1563770A1 (en) | Method and apparatus for controlling the process of cleaning cyclone from stuck dust | |
SU905656A1 (en) | Device for measuring plate vibration parameters |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |