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Article | REF: R1300 V2

Angle metrology

Author: Georges-Pierre VAILLEAU

Publication date: December 10, 2010

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7. Measuring devices

7.1 Autocollimators

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7.1.1 Presentation

A self-collimating telescope (figure 18 ) is capable of measuring small angular variations from a few hundred seconds to a hundred minutes of angle, with maximum errors of the order of a few hundredths of an arc second for the most efficient equipment, and a few seconds for the most common.

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