CHARACTERIZATION OF HIGH PRECISION PARALLEL SPRING TRANSLATORS

This work deals with the characterization of parallel spring translators for high precision applications; both the cases of the simple and of the compensated elastic suspensions are considered. Analytical methods for the evaluation of “parasitic” deflections are compared with the aim to determine the relative limits of applicability depending on the required degree of accuracy. These methods allow to improve the mechanical design minimizing the departures from rectilinearity. Experimental verifications employing an interferometric technique were performed confirming the analytical results. A large bibliographical reference is given with the aim to help the reader to get a broader insight on the subject.

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