Overview
Ultrasonic sensor provides stable and accurate
distance measurements from 2cm to 450cm. It has an focus of less than 15
degrees and an accuracy of about 2mm.
Ultra Sonic Ranging Sensor:
Description:
This sensor uses
ultrasonic sound to measure distance just like bats and dolphins do. Ultrasonic
sound has such a high pitch that humans cannot hear it. This particular sensor
sends out an ultrasonic sound that has a frequency of about 40kHz. The sensor
has two main parts: a transducer that creates an ultrasonic sound and another
listens to it's echo. To use this sensor to measure distance, the robot's brain
must measure the amount of time it takes for the ultrasonic sound to travel.
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