New instrument for the measurement of diameter and form of cylinders

John R. Miles

doi:10.1117/12.445638

22 October 2001 New instrument for the measurement of diameter and form of cylinders

John R. Miles

Proceedings Volume 4401, Recent Developments in Traceable Dimensional Measurements; (2001) https://doi.org/10.1117/12.445638
Event: Lasers in Metrology and Art Conservation, 2001, Munich, Germany

Abstract

A new instrument capable of measuring the diameter and form of cylinders up to 10 mm diameter with uncertainties at the +/- 10 nanometer level is being developed. The primary purpose of the instrument will be to characterize the geometry of pistons used in realizing high-pressure standards, but the instrument will have general applicability. The measurement of diameter is achieved by continuously and independently measuring the positions of two mutually opposed contact probes, using two sub-nanometric displacement measuring laser interferometers.

Citation Download Citation

John R. Miles "New instrument for the measurement of diameter and form of cylinders", Proc. SPIE 4401, Recent Developments in Traceable Dimensional Measurements, (22 October 2001); https://doi.org/10.1117/12.445638

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