Double metal sheet detector dbk+4 series

ultrasonicanalogcylindrical

The new ultrasonic double-sheet control dbk+4 combines multiple variants of its predecessor into a single unit, opening up entirely new possibilities for use. Highlights 3 control inputs for trigger, Teach-in and external sensitivity settings for the material Teach-in option e.g. for probing wafers stuck together by a water film Variant with 90° angled head for individual installation situations Variant with external M18 receiving transducer Variants with very compact transmitters and receivers in the M12 threaded sleeve Basics Reliable detection of single and double sheets No Teach-in needed (plug and play) Double sheet and missing sheet output Working distance between the transmitter and the receiver selectable from 20 to 60 mm Trigger option for applications in warehouse flow LinkControl for configuration of sensors from a PC Description The task of double-sheet control is to identify two or more pieces or sheets inadvertently adhering together. The functional principle A high-frequency ultrasonic transmitter beams against the sheet from the underside. The beamed signal induces the material to vibrate. The effect of these vibrations is a very small sonic wave on the other side of the sheet being spread. This wave is evaluated by the ultrasonic receiver on the opposite side. The signal from the stacked sheet ("double sheet") is so weak that it hardly gets to the receiver. The dbk+4 detects missing, single and double sheet. The working ranges The new dbk+4 has 3 control inputs by means of which 3 working range can be preselected. The standard working ranges covers the sheet material weight range from 20 g/m2 to 1,200 g/m2.