Basics Ultrasonic Sensors
Basic Knowledge of Ultrasonic Sensors
Ultrasonic sensors are suitable for the automated detection of positions and distances of objects. Their function is independent of the surface characteristics of the target object. Pulsotronic ultrasonic sensors are working with ultrasonic converters for sending and receiving. In a determined cycle, the sensor is sending special encoded ultrasonic signals. After the reflection at the target object, the sensor is receiving and decoding the signals. The determined signal delay is processed into a distance information and temperature compensated. High carrier frequencies as well as the most modern signal processing guarantee that the sensors are working failure-free and accurately. For transmission to a process control computer analogue, digital or switching outputs are used as well as RS232 and RS485 interfaces. Via synchronisation units, multiple sensors can be used at the same time. Because of this, the scanning of structures with sensor arrays is possible.