Distance sensors can be either long or short distance and work using echo location techniques like Doppler effect to detect objects. They emit an ultrasonic signal that bounces off a surface and is reflected back to the sensor, allowing the sensor to calculate the distance to the object by measuring the time between emission and reception of the echo. Common uses of distance sensors include air traffic control and car detection systems.

1. Eng Hadeel Rostom

2. Distance
Sensors
Long
distance
Short
distance

4. They work using two
Echo
technics
Deppler Efect•

6. A. Air traffic control
B. Car detection

8.  It emits an ultrasonic signal which is
reflected on the surface and is reflected
again on the telemeter .
 The telemeter receives the echo

11.  They transform a lineal movement in an
angular movement