Vibrating top

A vibration gyroscope ( English Vibrating structure gyroscope , VSG) is a sensor for measuring the rate of rotation and thus the rotation angle of a body in space. The drift of inexpensive sensors amounts to less than 10 ° / h .

A vibration gyro consists of a system that can oscillate, for example an oscillating crystal . If the quartz is rotated perpendicular to the direction of deflection with the angular velocity , the Coriolis force acts ${\displaystyle a}$ ${\displaystyle \omega }$

${\displaystyle F\sim \left({\frac {\mathrm {d} a}{\mathrm {d} t}}\times \omega \right)}$

perpendicular to the oscillating system. The distortion can be detected by a piezoelectric pickup .

As with fiber or laser gyroscopes , the word gyro is taken from the gyro instrument , which was traditionally used to determine orientation in space.

The oscillating bulbs in insects work on the principle of a vibrating top.

literature

• Heinz Georg Deppner: Rotation Rate Sensor PDF, free of charge, 6 pages 132 KB, from: STN Atlas Electronics , Bremen.
• Renate Czommer: Performance of vehicle- autonomous location methods based on map matching techniques . 2000, doi : 10.18419 / opus-3651 ( uni-stuttgart.de [PDF; 2.6 MB ; accessed on January 5, 2020]).