DEVICE FOR IDENTIFICATION OF ITEMS Russian patent published in 2009 - IPC G01B21/00 G01N25/72 

FIELD: physics, measurement.

SUBSTANCE: invention is related to the field of instrumentation and is intended for application in machine building for identification (recognition) of heated metal and non-heated metal and nonmetal items. Device comprises sensitive element formed by inductive sensitive element installed between two infrared photodetectors and arranged in the form of inductance coil placed in annular groove of ferrite core open end with central hole and capacitance sensitive element installed inside the central hole of ferrite core coaxially to this hole. Whenever heated metal item is moved relative to device sensitive element, it subsequently passes by the first infrared photodetector, crosses electromagnet field of inductive sensitive element, interacts with electrical field of capacitance sensitive element and passes by the second infrared photodetector. At that at the first outlet of device signal is processed with level of logical "1", which carries information about identification of heated metal item. At the second outlet of device at the same time voltage is available with level of logical "0". Whenever non-heated metal or nonmetal item is displaced, signal with the level of logical "1", which carries information about their identification, is processed only at the second outlet of device. At that voltage is available at the first outlet of device with the level of logical "0".

EFFECT: provision of identification with improved reliability of heated metal and non-heated metal and nonmetal items without contact with them.

5 dwg