Digital linear measuring systems

A  digital linear measuring systems (DLMS) has a sensor paired with a scale that encodes position. Technologies used are: optical, magnetic, inductive, capacitive and eddy current measurement principles. Optical technologies include shadow, self imaging and interferometric. DLMS are used in metrology instruments, motion systems, inkjet printers and high precision machining tools ranging from digital calipers and coordinate measuring machines to stages, CNC Mills, manufacturing gantry tables and semiconductor steppers.