Is the Reversing Radar Using Electromagnetic Waves or Ultrasonic Waves?
1 Answers
Reversing radar uses ultrasonic waves. Here is a related introduction about reversing radar: Components: The reversing radar mainly consists of three parts: ultrasonic sensor, controller, and buzzer. Working Principle: When it operates, the ultrasonic sensor emits ultrasonic waves outward. When the ultrasonic waves hit an obstacle, they bounce back and are received again by the ultrasonic sensor. Then, the controller calculates the distance between the car and the obstacle based on the time taken for the ultrasonic waves to be emitted and reflected back. Finally, the driver is alerted through the warning sound emitted by the buzzer.