| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for high-resolution tracking of an industrial process material with a trace amount of a luminescent marker, and to provide a portable reader for detecting the luminescent maker.SOLUTION: A method of marking an industrial process material (7) includes selectively incorporating a luminescent material marker (1) onto and/or into the industrial process material (7) in a trace amount insufficient to be optically detectable in the presence of ambient light but sufficient to be non-destructively optically detectable in and/or on the industrial process material (7) in situ in the field or on-site. The trace amount of the luminescent marker (1) is used to track, identify, or authenticate the industrial process material (7) for at least one of material control, inventory control, stock control, process control, logistics control, quality control, and pollution control. |
