Response curves help the user determine the suitability of a particular ultrasonic sensor to solve a specific application. These curves are shown on the product data sheet. A detailed description can be found in the document “General information on mounting and operation” provided on the product page in the "Downloads" section.
Distance: In x-axis, the sensing range. In y-axis, the width of the sound beam.
Detection zone: If half of the standard target is within the detection zone.
Switch-on curve: The curve describes the switch-on point when the edge of the standard target approaches laterally.
Target: The target size depends on the maximum range of the sensor. See data sheet.
50% of the target in the detection zone
Switch point
For targets approaching the sensor axially (as in a tank level application), the sensor will detect the target as soon as it reaches the switch-on curve.
For applications where the sound curve is too large, consider using a sound tube to better focus the sound.
Testing in the specific application may be needed to ensure proper function.