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Proceedings Paper

Laser Alignment Of Parallel Mechanical Axes 10 Metres Apart
Author(s): Gerald F. Marshall; Clifford L. Taylor
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Paper Abstract

A technique using a laser to align the parallelism of a nest of rotational axes or surfaces 10 metres apart to within one-half arc minute will be described. The parallelism of rotational axes, 10 centimetres apart, of two cylinders can be aligned and measured with standard metrological instrumentation. The parallelism can also be aligned and measured with optical instrumentation, such as plane mirrors, an auto-collimator, or a telescope. When the sizes of the cylinders are enlarged and the separation is increased 100 fold, these approaches are impracticable because an auto-collimator of twice the aperture diameter and structure of the 200 inch telescope at Mount Palomar would be required.

Paper Details

Date Published: 16 June 1983
PDF: 4 pages
Proc. SPIE 0369, Max Born Centenary Conf, (16 June 1983); doi: 10.1117/12.934370
Show Author Affiliations
Gerald F. Marshall, Energy Conversion Devices, Inc. (United States)
Clifford L. Taylor, Energy Conversion Devices, Inc. (United States)

Published in SPIE Proceedings Vol. 0369:
Max Born Centenary Conf
M. John Colles; D. William Swift, Editor(s)

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