Introduction to Electronics in Uncrewed Aerial Systems (UAS) - Module 1

These flashcards cover key concepts related to basic electronics and their applications in the UAS industry, derived from the provided lecture notes.

What is the primary focus of Module 1 in UET 102?

The course introduces basic electronics and its crucial role in uncrewed aerial systems (UAS) and their components.

Why is a strong foundation in electronics important for the UAS industry?

It is essential for professionals to design, operate, and maintain UAS effectively and safely.

What does Ohm's Law express about the relationship between voltage, current, and resistance?

Ohm's Law states that current is directly proportional to voltage and inversely proportional to resistance.

What are the four basic electrical quantities discussed in UET 102?

Electrical charge, voltage, current, and resistance.

What is the role of a flight controller in a UAS?

The flight controller acts as the brain of the system, collecting information from sensors and managing components for navigation and stability.

What does a multimeter measure?

A multimeter measures voltage, current, and resistance.

In simple terms, what does 'troubleshooting' involve?

Troubleshooting involves analyzing problems, planning solutions, and measuring to confirm fixes.

What happens to the total resistance in a series circuit when more resistors are added?

The total resistance increases as more resistors are added in series.

What is a parallel circuit?

A parallel circuit offers multiple pathways for current, where each component receives the same voltage.

Why is safety knowledge crucial when working with electrical systems in UAS?

Safety knowledge is crucial to prevent electric shocks, burns, and fire hazards.

What is 'grounding' in an electrical circuit?

Grounding is the process of creating a common reference point for voltage measurements and ensuring safety when dealing with electrical components.

What are electronic speed controllers (ESCs) used for in a UAS?

ESCs manage the speed and direction of the electric motors in the UAS.

What defines an open circuit?

An open circuit is a break in the current path that prevents electricity from flowing.

What is a critical benefit of using parallel circuits in UAS?

If one component fails, it does not affect the operation of other components in the circuit.

What is the effect of adding resistors in parallel on total circuit resistance?

Adding resistors in parallel decreases the total resistance of the circuit.

What is the purpose of power distribution boards (PDB) in a UAS?

PDBs supply power to different electronic components of the UAS.

reference ground

in electronics circuits, postive and negative used with common reference points for voltage measurements.

A rule for identifying parallel circuits is as follows: 

if there is more than one current path (branch) between 2 points and if the voltage between these two points is also appears accross each branch, then there is a parallel circuit between the two points in the circuit.

short circuit

An electrical fault that occurs when a low-resistance connection forms between two points in a circuit, allowing current to flow along an unintended path.

when resistors are arranged in parallel

the total resistance decreases. This occurs because the current can divide among multiple paths, reducing the overall resistance experienced by the circuit.

As per Ohm's law, if the voltage remains constant, an increase in total current i

results in a decrease in total resistance. This relationship is crucial for understanding how voltage, current, and resistance interrelate in an electrical circuit.