Laser Scanning Techniques For Automatic Inspection Of Heat-Sealed Film Packages

William E. Wolf

doi:10.1117/12.934108

23 May 1983 Laser Scanning Techniques For Automatic Inspection Of Heat-Sealed Film Packages

William E. Wolf

Proceedings Volume 0360, Robotics and Industrial Inspection; (1983) https://doi.org/10.1117/12.934108
Event: 26th Annual Technical Symposium, 1982, San Diego, United States

Abstract

Many products in the food and drug industry are sold in heat-sealed translucent film packages. Automatic inspection of these packages before shipment to the customer is an important step in assuring quality. This paper describes a laser scanner and associated electro-optical and electronic system for inspecting blister packages which also serve as reaction vessels, identifying and classifying defects for process control in an on-line situation. This system is a practical application of a coherent light scanner which utilizes spatial filtering and a transform plane array of optical sensors for performing some of the signal processing necessary for defect detection and classification. Automatic registration in 2 dimensions is incorporated, thus relaxing the positional accuracy requirements of the product handling system.

Citation Download Citation

William E. Wolf "Laser Scanning Techniques For Automatic Inspection Of Heat-Sealed Film Packages", Proc. SPIE 0360, Robotics and Industrial Inspection, (23 May 1983); https://doi.org/10.1117/12.934108

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KEYWORDS

Inspection

Scanners

Signal detection

Laser scanners

Sensors

Inspection equipment

Defect detection

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