Speed sensor

Speed sensors are machines used to detect the speed of an object, usually a transport vehicle. They include:

• Wheel speed sensors
• Speedometers
• Pitometer logs
• Pitot tubes
• Airspeed indicators
• Piezo sensors (e.g. in a road surface)
• LIDAR
• Doppler radar
• ANPR (where vehicles are timed over a fixed distance)
• Laser surface velocimeters for moving surfaces