VI. The separate parts of a dynamically tuned gyroscope are presented in the laboratory. Label these parts and match them with the appropriate description. Use the text

1. 2.

3. 4.

5. 6.

a. ______ is made of medium strength steel, supporting all the internal components in a low and constant pressure environment. It should have stable dimensions and works as a magnetic shield.

b. ______ responsible for the magnetic field, in which the torque coils are placed to interact with, leading to the control torques. They must have radial magnetic direction.

c. _______ are made of enameled copper wires. It has a curve shape and it is bonded with great care at the case in order to define with high precision the gyroscope output axis.

d. _____ is composed by four variable reluctance transformers, excited at 50 kHz frequency, and placed at 90 degrees from each other.

e. The usual solution is based on a monolithic construction that satisfies the precision articulation concept, avoiding friction, mechanical gaps and hysteresis on the movements. Besides, this solution permits the coincidence of the centers of rotation (x and y) and the gimbal and the inertial rotor mass centers.

f. ______ is made in medium strength steel. Typical dimensions are 3 mm diameter and 50 mm length, which should show a straightness and circularity precision about 1 or 2mm.