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Principals of Synchros, Servos and Gyros


Quiz Questions

1. ______________ is a component in a servo system that measures position and converts the measurement into a form convenient for transmission as a feedback signal.
Position Sensor
Servo system
2. A mechanical or electrical technique used in synchro receivers to prevent the rotor from oscillating or spinning is called ______________.
Damping
Demodulator
3. Inertia is the physical tendency of a body in motion to remain in motion and a body at rest to remain at rest unless acted upon by an outside force.
True
False
4. Rotor is the tendency of the spin axis of a gyro wheel to remain in a fixed direction in space if no force is applied to it.
True
False
5. ____________ is the effect of the Earth’s rotation on a gyro, which causes the spinning axis to appear to make one complete rotation in one day.
Apparent Drift
Apparent Precession
6. The frequency response of a servo is the range of frequencies to which the system is able to respond in moving the load.
True
False
7. A standard synchro position, with a definite set of stator voltages, which is used as the reference point for alignment of all synchro units is known as _________________.
Electrical Zero
Electrical Lock
8. The process of adjusting a synchro to its electrical zero position is called zeroing.
True
False
9. Bandwidth is a range of frequencies a servo amplifier can amplify without causing unacceptable distortion to the input signal.
True
False
10. _____________ is a mechanical device containing a spinning mass mounted so that it can assume any position in space.
Gyroscope
Gimbal
11. Synchro System is an electromagnetic device that uses one or more saturable reactors to obtain a large power gain.
True
False
12. Correspondence is the term given to the positions of the rotors of a synchro transmitter and a synchro receiver when both rotors are on 0 or displaced from 0 by the same angle.
True
False
13. ________________ is the delay in a servo system between the application of the input signal and the actual movement of the load.
Time Lag
Torque
14. What does TDR stand for?
Torque Differential Receiver
Time Differential Receiver
Translation Differential Receiver
None of the above
15. Degree of freedom is known as the number of axes about which a gyro is free to precess.
True
False
16. _____________ is defined as the rotation of the spin axis of a gyro in response to an applied force.
Precession
Magnetism
17. ______________ is the tendency of the spin axis of a gyro wheel to remain in a fixed direction in space if no force is applied to it.
Rigidity
Rotation
18. List the two general classifications of synchro systems?
Torque and Control
Torque and Load
Control and Load
None of the above
19. The measure of torque is the product of the applied force and the distance between the point of application and the center of rotation.
True
False
20. ________________ is a small motor like device that operates like a variable transformer and is used primarily for the rapid and accurate transmission of data among equipments and stations.
Synchro
Tine Lag

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