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Ultrasonic Sensor

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An ultrasonic sensor is a device that uses ultrasonic sound waves to measure the distance to an object.

expanded

An ultrasonic sensor emits sound waves at a frequency above the audible range and calculates the time it takes for the echoes to return after bouncing off an object, providing the distance measurement. These sensors are used in various applications, such as obstacle detection in robotics and distance measurement in fluid level sensing systems, offering non-contact, high precision measurement capabilities within defined ranges.

examples

The LV-MaxSonar-EZ1 is an ultrasonic sensor that provides range information from 0.3 meters to 6.45 meters.

Commonly used in robotics for collision avoidance, the LV-MaxSonar-EZ1 helps autonomous robots navigate by detecting nearby objects and calculating the distance to them.

The HC-SR04 ultrasonic sensor can measure distances from 0.02 meters up to 4 meters with an accuracy of approximately 0.03 meters.

In home automation systems, the HC-SR04 is frequently used for level detection in tanks, where it monitors fluid levels by measuring the distance to the surface of a liquid.