Improved parallelism measurement using a laser interferometer

Improved parallelism measurement using a laser interferometer

The authors discuss an improved method for obtaining parallelism measurements of two straight bars in a plane, considering the specific problem of making two vertical surfaces parallel to each other to within 0.00005 of an inch over a 50 inch length. The authors compare the existing method of using...

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Veröffentlicht in:IEEE transactions on industry applications 1991-07, Vol.27 (4), p.606-610
Hauptverfasser: Konkel, B.P., Zipter, E.C., Kirkham, E.E.
Format: Artikel
Sprache:eng
Schlagworte:
Current measurement
Industry Applications Society
Laser beams
Laser theory
Length measurement
Machine tools
Pins
Rails
Steel
Vertical cavity surface emitting lasers
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container_end_page 610
container_issue 4
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container_title IEEE transactions on industry applications
container_volume 27
creator Konkel, B.P.
Zipter, E.C.
Kirkham, E.E.
description The authors discuss an improved method for obtaining parallelism measurements of two straight bars in a plane, considering the specific problem of making two vertical surfaces parallel to each other to within 0.00005 of an inch over a 50 inch length. The authors compare the existing method of using dial indicators and a slider with that of using a laser interferometer, cable and pulley system, and a microcomputer. Possible errors this system may generate and solutions to help minimize them are presented. The procedure presented will help to minimize errors due to the operator such as 'reading between the lines' on an indicator and hand applied pressure. These methods allow improved parallelism resolution over that obtainable with the indicator.< >
doi_str_mv 10.1109/28.85471
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subjects Current measurement
Industry Applications Society
Laser beams
Laser theory
Length measurement
Machine tools
Pins
Rails
Steel
Vertical cavity surface emitting lasers
title Improved parallelism measurement using a laser interferometer
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