The UC4 from SICK Inc., Minneapolis, MN, is a small ultrasonic sensor that can detect optically difficult targets, such as clear, shiny, or dark materials. Sensing range is 250 mm and output is a single PNP or NPN signal. The UC4 can be set up in background suppression, window, and reflection modes. Applications include hopper and tank fill level detection; bottling line presence detection; semiconductor industry wafer, solar panel, glass, and PCB detection; and woodworking and metal forming/fabricating machinery.
Ultrasonic Sensor from SICK