Sensor Motion Sensor

What is a motion detector?

• A device used to detect physical movement in a given area

• A device used to detect temperature changes

• A device used to detect sound waves

• A device used to detect light levels

What is the primary use of motion detectors?

• Energy management systems

• Customer communication in retail stores

• Intrusion detection systems

• Temperature control systems

Which of the following industries can utilize motion detectors for customer communication?

• Healthcare

• Agriculture

• Retail

• Construction

What other types of movements can motion detectors decipher besides human movements?

• Temperature changes

• Sound waves

• Light levels

• All of the above

What does a PIR motion sensor detect?

• Sound waves

• Visible light

• Ultrasonic waves

• Infrared energy (body heat)

How does an ultrasonic motion sensor detect movement?

• By measuring the reflection off a moving object

• By detecting body heat

• By detecting sound waves

• By measuring the reflection off a stationary object

Which type of motion sensor covers a larger area than infrared and ultrasonic sensors?

• Microwave

• Passive Infrared (PIR)

• Ultrasonic

• Mechanical Limit switch

What is a potential disadvantage of microwave motion sensors?

• They are vulnerable to electrical interference

• They are only effective in small spaces

• They are less sensitive than other sensors

• They are less expensive than other sensors

Which of the following motion sensor does not required power?

• PIR

• ultrasonic sensor

• Microwave sensor

• LIDAR