What is the benefits of non-contact ultrasonic m measurements?
Answers
Here, ultrasonic sensors work as transmitter and receiver with short, high-frequency acoustic impulses in the range of approx. 40 to 500 kHz. They are transported in air at sound velocity and reflected from objects. The measurement of the propagation time between sending the pulse and receiving the reflected signal is evaluated electronically to give the distance from the object.
In this case, the piezo transducers are placed outside the medium to be detected to avoid a contamination of the filling medium and the sensors. The fill level detector transmits an ultrasonic pulse that is reflected by the contents. The required propagation time is a measure of the distance traveled in the empty part of the container.
Explanation:
How far can Senix® ultrasonic sensors measure? The maximum range of our products is presently 20 meters (about 70 feet) and varies by model. The distance at which an object is detected depends on its size, shape and orientation.