INS

Question 1

What is the purpose of the INS(inertial navigation system)

Answer 1

Provided continuous latitude and longitude positional data

Question 2

Advantages of INS

Answer 2

Self contained
Not affected by weather
Very accurate

Question 3

What does INS require

Answer 3

Start position
Destination
Power supplies

Question 4

What does INS give you

Answer 4

A/C present position
True heading
True track
Ground speed
Height
Vertical velocity
Attitude

Question 5

What type of accelerometer is used in INS

Answer 5

Force feedback used to detect a wide range of accelerations

Question 6

advantages of strap down INS over conventional

Answer 6

More reliable
Quicker alignment
Lower cost

Question 7

What is the effect Sagnac effect

Answer 7

2 beams in light are sent and the difference in movement will be the frequency which is directly proportional to the rate of rotation

Question 8

Early ring laser gyros suffered with what and how is it corrected

Answer 8

Low input rates and lock in solved by vibrating the rlg using a dither motor

Question 9

4 stages of strap down INS

Answer 9

Power up and BIT
Input current position
Level detection
Gyro-compassing

Question 10

Two methods of updating an INS

Answer 10

Position fixing
Position error compensation