Ultrasonic Sensors
How do ultrasonic sensors work?
Ultrasonic sensors emit high-frequency ultrasonic pulses that are not audible to humans. They are able to detect objects contactlessly and measure their distance from the sensor. In these sensors, the active surface is used to both emit and receive ultrasonic waves.
Ultrasonic sensors detect objects regardless of their material, state of aggregation, color or degree of transparency. Sound-permeable materials such as foam, on the other hand, are difficult to detect.
This makes ultrasonic sensors particularly well suited for the following applications:
- Presence checks, such as glass recognition
- Fill level check
- Distance measurement
- Sag detection
