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Published on: February 28, 2016
Investigation on Modulation-Based Straightness Measurement
Andrea Egidi1, Alessandro Balsamo1, Davide Corona1
1Istituto Nazionale di Ricerca Metrologica (INRiM), 10135 Torino, Italy.
Abstract:
The concept of a novel non-contacting technique for measuring straightness and its practical realization in a mechanical device are presented in this article. The device, called InPlanT, is based on the acquisition of the luminous signal retroreflected by a spherical glass target and impinged on a photodiode after mechanical modulation. The received signal is reduced to the sought straightness profile using dedicated software. The system was characterized with a high-accuracy CMM and the maximum error of indication was derived.
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