Advantages and Disadvantages of Ultrasonic Sensor
Apr 09, 2013 Ultrasonic sensors have a few disadvantages. One of these disadvantages is they cannot tell small and big objects apart. The reason for this is the cone shape of the emitted pulse. No matter what the size of an object is, it will return an echo due to the shape of the pulse. To remedy this issue, either multiple or rotating sensors are used.
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