Servo Mechanics Flashcards
Control synchro is used
To produce demand signals for servo systems
Differential synchro
Can be used as either a transmitter or a receiver
E and I transformer out of datum has
Unequal and opposite voltages in both windings
Increase in velocity feedback will
Decrease
Increase
Not change
The speed at which the load moves
Decrease
Describe how the windings are connected when using a resolver synchro to convert from Cartesian to polar co-ordinates
Inputs are connected to the s1/s2 and s3/s4.
R/1 r/2 are connected to the discriminator and servo motor.
R/3 and R/4 probes an output voltage
Position feedback is used to
Ensure control surface moved to the demanded position by the controls
Position feedback is
In phase
Anti phase
Anti phase with the demanded signal
Power supply to a torq synchro
AC voltage
Type of feedback would be used to prevent overshoot
Rate feedback
Desyn indicator/torque system
24-28v DC
When the rotor of an AC tacho is stationary, the rotor has
No circulation current
Low circulating currents
Low circulating currents
Due to small amount of residual voltage
Resolving Cartesian input it polar output
Inputs are two voltages
Class of op amp is most efficient for radio power amplify stage
C
