Drone Anatomy
What is the "brain" of a drone?
The flight controller
What type of motors do almost all modern drones use?
Brushless motors
Most drones use what type of batteries?
Lithium Polymer or LiPo
What is the most common type of drone sensor?
An RGB camera
This type of drone has wings and is used for long-distance flights.
Fixed-wing drones
What is the "inner ear" of the drone?
The inertial measurement unit (IMU)
The part of a brushless motor that spins is called what?
The rotor
This rating tells you how much energy a battery can store
The mAh rating (milliamp-hour)
These sensors help the drone detect nearby objects and prevent crashes.
Obstacle avoidance sensors
A drone with four propellers is called what?
A quadcopter
What part keeps a drone's camera level and smooth during a flight?
A gimbal
The part of a brushless motor that DOES NOT spin is called what?
The stator
What is one environmental factor that can affect battery performance?
Cold temperatures outside, wind, etc.
LiDAR sensors
What is it called when a drone rotates in place?
Yaw
To tell each motor how fast to spin, the flight controller sends instructions to what component?
The electronic speed controllers (ESCs)
In this type of brushless motor, the stator is on the outside and the rotor is on the inside. It is fast, but not as strong.
An inrunner motor
If electricity is like water in a garden hose, what represents water pressure?
Volts
What type of sensor detects heat?
Thermal sensors
For a rotary drone to move forward, the back propellers spin ______________ (faster/slower) than the front ones.
faster
Which drone part calculates location, altitude, speed, and direction?
The GNSS receiver
In this type of brushless motor, the rotor is on the outside and the stator is in the middle. It is strong, but not as fast.
An outrunner motor
A 1-cell battery has how many volts?
3.7 volts
What type of multispectral sensor helps monitor plant health?
NDVI sensors
This type of drone uses more power, but it's more flexible to use.
A rotary-drone