Ultrasonic sensor
makerA transducer that uses ultrasonic waves to measure distances to an object.
expanded
Ultrasonic sensors emit sound waves at a frequency higher than the human ear can detect and measure the time it takes for the waves to return after reflecting off an object. This capability is crucial in various applications such as object detection, level measurement, and automated distance sensing, providing reliable data in environments where optical sensors may fail due to dust or smoke.
examples
An HC-SR04 ultrasonic sensor can measure the distance from 2 cm to 400 cm with an accuracy of ±3 mm.
Commonly used in robotics for object detection to avoid collisions while navigating an environment.
MaxBotix MB7389 ultrasonic sensor is used for determining the water level in tanks, offering a range of up to 10 meters with a resolution of 1 mm.
It is employed in industrial settings for monitoring fluid levels to automate control systems.