Inductive identification of object - has signals received by unit that provides processing with defined period

摘要

An identification unit has an element (4) that contains an LC oscillator circuit that is activated by signals generated by a transmitter coil (3) that receives an input from a suppression filter (21) and an amplifier (2). A receiver coil (8) responds to the signal from the identification tab. The signal is filtered (10) and digitally processed by a counter and comparator (15,16) circuit with a comparator input (12) to indentify the unit. ADVANTAGE - Improved performance of non-contact sensing system.