Patent ID: 11872743
Assignee: AGR INTERNATIONAL, INC.
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 13:
14. The method of claim 12, wherein:
the at least one light sensor comprises first and second spaced-apart light sensors;
the first light sensor is part of a first light sensor sub-assembly that comprises the first light sensor and a first filter;
the second light sensor is part of a second light sensor sub-assembly that comprises the second light sensor and a second filter;
the first and second light sensor sub-assemblies are on the same side of the travel path of the transparent hollow article as the at least one light source;
sensing the light energy comprises:
filtering out, by the first filter of the first light sensor sub-assembly, light energy outside of the ab sorption wavelength; and
filtering out, by the second filter of the second light sensor sub-assembly, light energy outside of the reference wavelength; and
computing the wall thickness comprises computing, by the processor, the wall thickness of the portion of the transparent hollow article based on the intensity of light energy sensed by the first and second light sensors.