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A backlash‐free high‐precision rotation stage based on flexure strips
Author(s) -
Cathie R.,
Janky S.
Publication year - 1988
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889888000433
Subject(s) - backlash , strips , rotation (mathematics) , stage (stratigraphy) , optics , physics , materials science , engineering , mechanical engineering , geology , geometry , mathematics , composite material , paleontology
A very versatile high-precision rotation stage for single-crystal diffraction studies has been developed which is frictionless and backlash free. The device is capable of angular steps as fine as, say, 0.1" arc and is quite compact (see Fig. 1). The principal feature of note is the use of three flexure strips set in planes at 120 ° (Geary, 1954) and having a common line of intersection and centroid (see Fig. 2). For small deflections induced by a tangent arm and drive, the central axis rotates without tilting about the common axis defined by the planes of intersection of the strips. Angular range