Sensors & Measurement
Ultrasonic sensor
A distance or presence sensor using sound above human hearing.
IN ONE SENTENCE
It measures the echo time from a target.
In normal English
Ultrasonic sensors can detect many colours and transparent objects that challenge optical sensors, although soft surfaces, air movement and geometry affect performance.
Why would I use it?
Use it for distance, presence and level where sound reflection works well.
THINK OF IT LIKE…
Tiny sonar for the factory.
Related terms
ultrasonic level, proximity sensor
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