Sensor Integration

Question 1

These sensors are involved in the detection of motion in a universal referenced set.

Answer 1

inertial sensors

Question 2

most commonly referred to as a spinning mass or wheel which tends to hold its position in a space-referenced orientation set due to the principle of conservation of angular momentum

Answer 2

gyroscopes

Question 3

These gyroscopes use the principle of conservation of angular momentum to provide a positional or attitude reference: typically aircraft pitch position, roll position or yaw position (heading).

Answer 3

position gyroscopes

Question 4

These gyroscopes use the property of precession which allows body rates to be sensed.

Answer 4

rate gyroscopes

Question 5

Due to the property of _, gyroscopes can be used to provide information relating to the aircraft body rates: pitch rate, roll rate and yaw rate.

Answer 5

precession

Question 6

devices that measure acceleration along a particular axis

Answer 6

accelerometers

Question 7

The measurement of _ can be integrated using computers used to derive aircraft velocity and position.

Answer 7

acceleration

Question 8

All _ use the principle of sensing the force on a loosely suspended mass, from which the acceleration may be calculated.

Answer 8

accelerometers

Question 9

The availability of inertial navigation systems (INS) to the civil aviation community during the late _ added another dimension to the navigation equation.

Answer 9

1960s

Question 10

The use of the Earth’s _ to sense direction and the use of north-seeking devices to establish the direction of magnetic north for the purposes of navigation is one of the oldest forms of sensor.

Answer 10

magnetic field

Question 11

provides magnetic heading, and when combined with a directional gyro (DG), which provides an inertial heading reference, can provide a ‘magnetic heading and reference system’ (MHRS)

Answer 11

magnetic sensor or flux-valve

Question 12

defined as the process of combining data from a number of different sensors to provide information that is not present in the individual sources

Answer 12

sensor fusion/data fusion/multisensor navigation

Question 13

aims to create a more comprehensive and accurate picture by leveraging the strengths of multiple inputs

Answer 13

sensor fusion/data fusion/multisensor navigation

Question 14

achieved by having multiple sensors of the same kind that give off the same type of information

Answer 14

redundancy

Question 15

example of an aircraft that has 3 pitot tubes and 6 static ports

Answer 15

Airbus A320

Question 16

example of an aircraft that has 3 pitot tubes and 4 static ports

Answer 16

Boeing 737

Question 17

when multiple sensors of the different types are used together

Answer 17

diverse sensor fusion