Module 3

Question 1

any electromagnetic device that converts information from mechanical to electrical form, and vice-versa

Answer 1

Synchro

Question 2

the condition of two rotors when they are both displaced from zero by the same angle

Answer 2

Correspondence

Question 3

the angle through which a transmitter rotor is mechanically rotated

Answer 3

Signal

Question 4

the difference between the ordered position and the actual position

Answer 4

Error

Question 5

a torque-differenctial receiver

Answer 5

TDR

Question 6

a torque-differential transmitter

Answer 6

TDX

Question 7

an automatic system that controls the physical positioning of a device

Answer 7

Servo

Question 8

An electromechanical device that converts information from mechanical to electrical form, and vice-versa, is called a(n) _____.

Answer 8

Synchro

Question 9

Synchros resemble small electric motors. They have a(n) _____ and a(n) _____.

Answer 9

Rotor, Stator

Question 10

Multiple windings in synchro are connected in the shape of a(n) _____.

Answer 10

Y

Question 11

In a synchro transmitter or receiver, do the stator coils serve as primary windings or as secondary windings?

Answer 11

Secondary

Question 12

What is the electrical difference between a synchro transmitter and a synchro receiver of the same size?

Answer 12

No difference

Question 13

When the rotors in a synchro system are displaced from zero by the same angle, the rotors are said to be in _____.

Answer 13

Correspondence

Question 14

What is the name for the angle through which the rotor of a synchro transmitter is mechanically rotated?

Answer 14

Signal

Question 15

Two devices used in amplifying the torque in a synchro transmission system are the _____ and the _____.

Answer 15

Servo system, amplidyne

Question 16

You can reverse the direction a device rotates by connecting it to a synchro receiver by means of _____.

Answer 16

gears

Question 17

To detect an error, a synchro system must accept _____ signals.

Answer 17

Two

Question 18

How is the error related to the two signals received by a synchro system?

Answer 18

Equals difference between signals

Question 19

What are the symbols for synchro transmitters and receivers, and for differential transmitters and receivers?

Answer 19

TX, TR; TDX, TDR

Question 20

Reversing the S1 and S2 leads, or the R1 and R2 leads, changes the value of the output from the _____ to the _____ of the two inputs.

Answer 20

Difference; Sum

Question 21

A control transformer is a synchro that supplies a (n) _____ signal from its rotor.

Answer 21

AC

Question 22

What is the symbol for a control transformer?

Answer 22

CT

Question 23

The output of a CT can be varied by changing either the _____ or the _____.

Answer 23

Rotor position, Signal to stator

Question 24

The general term for an electromechanical device that converts information from mechanical to electrical form is

Answer 24

Synchro

Question 25

What is the name for a synchro system that can accept two signals, add or subtract them, and produce a proportional signal?

Answer 25

Differential synchro system.

Question 26

In blueprints and diagrams showing synchros, the letters R and S identify the

Answer 26

Rotor and stator connections.

Question 27

TX is the symbol for a

Answer 27

Synchro transmitter.

Question 28

Multiple windings in a synchro are connected in (a)

Answer 28

Y

Question 29

A system consisting of two synchro transmitters and a differential receiver is labeled

Answer 29

TX-TX-TDR

Question 30

If the slots of a rotor are turned at an angle from the axis, they are said to be

Answer 30

Skewed.

Question 31

All of the following devices are amplifying devices, except the

a. servo
b. servocontrol
c. servomechanism
d. servo system

Answer 31

b. Servocontrol

Question 32

The angle through which a transmitter rotor is mechanically rotated is called a(n)

Answer 32

Signal

Question 33

The magnitude and phase of the output of a CT depends on the relationship between the

Answer 33

Stator field and rotor.