Can ultrasonic sensors detect transparent or smooth surfaces?

Yes, ultrasonic sensors can detect transparent or smooth surfaces. Because it uses sound waves instead of light to measure, it is not affected by the transparency, color or gloss of the target object. Therefore, ultrasonic sensors can stably detect even materials that are difficult to detect with traditional photoelectric sensors, such as glass, mirrored metal, liquids, etc.

This makes it ideal for applications that require the detection of transparent packaging, liquid levels or smooth workpieces.