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Measurement of Throat Height Using Motion Analyzer Technique Or Video Digitizing Technique

IP.com Disclosure Number: IPCOM000062746D
Original Publication Date: 1986-Nov-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Sequeira, MJ: AUTHOR

Abstract

Very small dimensions can be measured by the use of a microscope system with a sensitive camera and a TV monitor by placing a cursor on a reference edge, sensing the desired target edge and calculating the dimension.

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Measurement of Throat Height Using Motion Analyzer Technique Or Video Digitizing Technique

Very small dimensions can be measured by the use of a microscope system with a sensitive camera and a TV monitor by placing a cursor on a reference edge, sensing the desired target edge and calculating the dimension.

The measurement process is carried out by the use of a microscope having a suitable objective 1 positioned to view workpiece 2 which may comprise a magnetic head slider assembly, for example. A sensitive camera 3 transmits the image to a Motion Analyser 4 for display on TV Monitor 5 under control of Microprocessor 6.

To produce the desired measurement, a vertical cursor 7 is brought against a reference surface such as the air bearing surface of the slider. The sensor 8 picks up the desired target edge 9 such as a throat height indicator displays the dimension automatically in the calculation provided by microprocessor 6.

Disclosed anonymously.

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