DEVELOPMENT OF A LOW–COST MEASUREMENT SYSTEM FOR CUTTING EDGE PROFILE DETECTION

Gregor Gerstorfer, Bernhard G. Zagar

Abstract

This paper describes the use of a CD pickup head as a displacement measurement system. First, the components contained in a pickup head are explained and how they are combined to obtain the functionality of a pickup head. Afterwards, the application of measuring a knife edge profile is introduced.The results revealed some insuffiencies with the current system. Nevertheless, the cutting edge’s radius of curvature can be estimated.

Keywords

optical pickup head, CD, profile measurement.

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IMEKO TC

TC2 - Photonics

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