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Sensors 2012, 12(3), 3350-3358; doi:10.3390/s120303350
Article

Novel Principle of Contactless Gauge Block Calibration

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Institute of Scientific Instruments, Academy of Sciences of the Czech Republic, Královopolská 147, 612 64 Brno, Czech Republic
* Author to whom correspondence should be addressed.
Received: 20 January 2012 / Revised: 22 February 2012 / Accepted: 1 March 2012 / Published: 8 March 2012
(This article belongs to the Section Physical Sensors)
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Abstract

In this paper, a novel principle of contactless gauge block calibration is presented. The principle of contactless gauge block calibration combines low-coherence interferometry and laser interferometry. An experimental setup combines Dowell interferometer and Michelson interferometer to ensure a gauge block length determination with direct traceability to the primary length standard. By monitoring both gauge block sides with a digital camera gauge block 3D surface measurements are possible too. The principle presented is protected by the Czech national patent No. 302948.
Keywords: low-coherence interferometry; gauge block; nanometrology low-coherence interferometry; gauge block; nanometrology
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Buchta, Z.; Řeřucha, Š.; Mikel, B.; Čížek, M.; Lazar, J.; Číp, O. Novel Principle of Contactless Gauge Block Calibration. Sensors 2012, 12, 3350-3358.

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