What is the Lidar measurement of time known as?

• A. Speed time process
• B. Time of flight
• C. Measurement interval
• D. Duration of pulse

Answer: (B)

Lidar measurement of time is known as the "time of flight." This term refers to the method used in lidar technology where the time it takes for a pulse of light to travel from the device to the target and back is measured. By calculating the time of flight, the device can determine the distance to the target, which is essential for determining speed when the device is aimed at a moving object, such as a vehicle.

This concept is fundamental to understanding how lidar operates, as it relies on the speed of light and the accurate timing of the emitted and reflected light signals to produce precise measurements. Therefore, recognizing and understanding the time of flight is crucial for professionals using lidar in speed measurement applications.