Unit 9 - Quiz 1

A flight controller (FC) is a circuit board that interprets user commands and reads sensor data __________________________________with the purpose of keeping it balanced and in control.

• to control the ailerons needed for hover
• to detect the proper propeller pitch
• to make adjustments to a multicopter’s motor speed

A magnetometer is another name for an accelerometer.

• True
• False

Which of the following is NOT a typical sensor you might find on a flight controller?

• gyroscope
• algorithm
• barometer

Whenever you send your aircraft a command, the flight controller takes your overall command and _________________________________________________________________________.

• sends the information to the GPS units which transmits it to the satellites
• allows your aircraft to be flown without the need for a transmitter
• breaks it down into hundreds of micro-commands per second for each of the motors in order to achieve the desired motion

The MCU of a flight controller contains a processor core with peripheral input/output circuitry to provide the needed instructions.

• True
• False

Multicopter flight controllers were developed from the technology of R/C helicopters, and designers had to figure out how to efficiently balance the consequential influence of tail rotors.

• True
• False

Three-axis gyroscopes measure rotation rate around 3 axes: roll, pitch and altitude.

• True
• False

Proper acceleration is the rate of change of velocity.

• True
• False

Gyroscopes work in tangent with _____________________ to help sense proper acceleration by measuring the rate of rotation around the axes.

• magnetometers
• barometers
• accelerometers

A sensor that measures electric current in relation to the Earth’s magnetic field is called a ___________________________________.

• barometer
• gyroscope
• accelerometer
• magnetometer