Laser Based In-Process Dimension Measurement And Control

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Abstract
In-process noncontact dimensional measurement and control systems incorporating laser sensors and microprocessor-based electronics provide higher levels of performance than heretofore possible using more conventional techniques. Because of their rugged construction, these systems can make measurements on the process line as well as have a substantial impact on process yields and scrap reduction. Many such systems have been produced and applied. This paper reviews the significant technical features and their impact on the production process. Several interesting applications are discussed.

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