Method, apparatus, and article to facilitate evaluation of objects using electromagnetic energy
First Claim
1. A method of facilitating quality control for manufactured objects, the method comprising:
- during a first period, sequentially illuminating at least a first portion of an object being evaluated with a plurality of bands of electromagnetic energy in a first sequence;
during the first period, measuring a plurality of responses to the illumination from at least the first portion of the object being evaluated;
comparing the measured responses of the first period to a first set of reference responses to illumination of a reference specimen of a reference object;
during a second period, sequentially illuminating at least the first portion of the object being evaluated with a plurality of bands of electromagnetic energy in a second sequence, the second sequence varied from the first sequence;
during the second period, measuring a plurality of responses to the illumination from at least the first portion of the object being evaluated in the second sequence; and
comparing the measured responses of the second period to a second set of reference responses to illumination of the reference specimen of the reference object; and
determining whether the object being evaluated is acceptable based at least in part on the comparison of the measured responses of the first period to the first set of reference responses and based at least in part on the comparison of the measured responses of the second period to the second set of reference responses.
0 Assignments
0 Petitions
Accused Products
Abstract
Spectral information may be employed in process control and/or quality control of goods and articles. Spectral information may be employed in process control and/or quality control of media, for example financial instruments, identity documents, legal documents, medical documents, financial transaction cards, and/or other media, fluids for example lubricants, fuels, coolants, or other materials that flow, and in machinery, for example vehicles, motors, generators, compressors, presses, drills and/or supply systems. Spectral information may be employed in identifying biological tissue and/or facilitating diagnosis based on biological tissue.
-
Citations
23 Claims
-
1. A method of facilitating quality control for manufactured objects, the method comprising:
-
during a first period, sequentially illuminating at least a first portion of an object being evaluated with a plurality of bands of electromagnetic energy in a first sequence; during the first period, measuring a plurality of responses to the illumination from at least the first portion of the object being evaluated; comparing the measured responses of the first period to a first set of reference responses to illumination of a reference specimen of a reference object; during a second period, sequentially illuminating at least the first portion of the object being evaluated with a plurality of bands of electromagnetic energy in a second sequence, the second sequence varied from the first sequence; during the second period, measuring a plurality of responses to the illumination from at least the first portion of the object being evaluated in the second sequence; and comparing the measured responses of the second period to a second set of reference responses to illumination of the reference specimen of the reference object; and determining whether the object being evaluated is acceptable based at least in part on the comparison of the measured responses of the first period to the first set of reference responses and based at least in part on the comparison of the measured responses of the second period to the second set of reference responses. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A system useful in evaluating objects, the system comprising:
-
at least one illumination source operable to sequentially illuminate during a first at least a first portion of an object being evaluated with a plurality of bands of electromagnetic energy in a first sequence and operable to sequentially illuminate during a second period at least the first portion of the object being evaluated with a plurality of bands of electromagnetic energy in a second sequence, the second sequence varied from the first sequence; at least one sensor operable to measure a plurality of responses to the first and the second sequences of illumination from at least the first portion of the object being evaluated; and at least one circuit configured to determine whether the object being evaluated is acceptable based at least in part on a first comparison of the measured responses to the first sequence of illumination to a set of reference responses to illumination of a reference specimen of a reference object and based at least in part on a second comparison of the measured responses to the second sequence of illumination to a second set of reference responses to illumination of the reference specimen of the reference object. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
Specification