Method, apparatus, and article to facilitate evaluation of objects using electromagnetic energy
First Claim
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1. A method of facilitating the manufacturing of objects, the method comprising:
- during a first period, sequentially illuminating at least a first portion of an object being manufactured 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 manufactured;
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 manufactured with a plurality of bands of electromagnetic energy in a second sequence, the second sequence being different than the first sequence;
during the second period, measuring a plurality of responses to the illumination in the second sequence from at least the first portion of the object being manufactured;
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
terminating the manufacturing process of the object being manufactured based at least in part on the comparison of the measured responses of the first period to the first set of reference responses and the comparison of the measured responses of the second period to the second set of reference responses.
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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.
159 Citations
19 Claims
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1. A method of facilitating the manufacturing of objects, the method comprising:
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during a first period, sequentially illuminating at least a first portion of an object being manufactured 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 manufactured; 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 manufactured with a plurality of bands of electromagnetic energy in a second sequence, the second sequence being different than the first sequence; during the second period, measuring a plurality of responses to the illumination in the second sequence from at least the first portion of the object being manufactured; 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 terminating the manufacturing process of the object being manufactured based at least in part on the comparison of the measured responses of the first period to the first set of reference responses and 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)
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10. A system useful in the manufacturing of objects, the system comprising:
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means for sequentially illuminating at least a first portion of an object being manufactured with a plurality of bands of electromagnetic energy in a sequence that is varied from time-to-time; means for measuring a plurality of responses to the illumination from at least the first portion of the object being manufactured during the illumination; and means for terminating the manufacturing process based on a determination of whether at least a portion of the manufacturing process is complete, the determination being based at least in part on a comparison of the measured responses to a set of reference responses and based on the sequence of illumination. - View Dependent Claims (11, 12, 13, 14)
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15. A system useful in manufacturing objects, the system comprising:
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a plurality of sources of electromagnetic energy controllable to sequentially illuminate at least a first portion of an object being manufactured with a plurality of bands of electromagnetic energy in a sequence of illumination that is varied over time; a sensor that measures a plurality of responses to the illumination from at least the first portion of the object being manufactured during each sequence of illumination; and a control subsystem coupled to the plurality of sources of electromagnetic energy and the sensor, the control subsystem terminating a manufacturing process of the object being manufactured responsive to comparisons of the measured responses from the sensor for each sequence of illumination to a corresponding set of reference responses. - View Dependent Claims (16, 17, 18, 19)
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Specification