GEC-Marconi Avionics Solid State Angular Rate Transducer (START) is a gyro dependent for its opeartion on the rotation sensing properties of a resonant shell. A complete gyro requires both a resonant element (the cylinder) and a means of maintaining and measuring the vibration pattern about it. START uses a small electronic module for these vibration control purposes and to provide a usable interface to the user systems. The vibrating element is a cylinder, chosen for its symmetry about the axis of measurement. The vibration pattern is established using piezo electric transducers in a phase locked loop. The transducers are electrically connected as parallel pairs, again for symmetry, but for diagramatic simplicity a single connection only is shown. The choice of high efficiency transducers and low loss material for the cylinder results in a very small power requirement to sustain the oscillation approx. 10 mW. This basic scheme works satisfactorily for steady angular rates but has a very narrow bandwidth when varying rates are applied. This makes it unsuitable for a practical rate sensor. The function of a driver transducers is to overcome this drawback by feeding back an amplified, filtered version of the signal, thus allowing a wide range of performance characteristics to be obtained from a single design of cylinder, solely by changes to the electronic circuit.
Start vibrating gyroscope
Festkörper-Winkelgeschwindigkeitsmeßgeber mit Vibrationsgyroskop
1993
8 Seiten, 8 Bilder
Conference paper
English
Principles of a three-axis vibrating gyroscope
IEEE | 2001
|Vibrating angular rate sensor may threaten the gyroscope
Tema Archive | 1968
|PAPERS - Principles of a Three-Axis Vibrating Gyroscope
Online Contents | 2001
|VIBRATING MASS CONTROL MOMENT GYROSCOPE DYNAMIC MODEL VALIDATION
British Library Conference Proceedings | 2016
|