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Novel principle of contactless gauge block calibration.

Buchta Z, Reřucha S, Mikel B, Cížek M, Lazar J, Cíp O - Sensors (Basel) (2012)

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Institute of Scientific Instruments, Academy of Sciences of the Czech Republic, Brno, Czech Republic. buchta@isibrno.cz

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.

No MeSH data available.


Sketch of the practical realization of the designed experimental setup.
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f4-sensors-12-03350: Sketch of the practical realization of the designed experimental setup.

Mentions: The measurement setup is shown in Figure 4. It is arranged on a massive base plate made of gray iron with a thermal expansion coefficient of 12.3 × 10−6 K−1. The optical components are put into 3″ gimbal transmitting mounts TRANS 90G (OWIS) optimized for a maximum aperture. These transmitting mounts are combined with goniometers with a range of adjustment of ±10° designed and made for precise rotation of the optical components around a defined optical axis. The final adjustment can be fixed with a screw. The used transmitting mounts are made from aluminum alloy with a declared thermal expansion coefficient of 23.5 × 10−6 K−1 and the gauge block holder and the reference surface holder are made from steel with a thermal expansion coefficient of 10.6 × 10−6 K−1.


Novel principle of contactless gauge block calibration.

Buchta Z, Reřucha S, Mikel B, Cížek M, Lazar J, Cíp O - Sensors (Basel) (2012)

Sketch of the practical realization of the designed experimental setup.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3376568&req=5

f4-sensors-12-03350: Sketch of the practical realization of the designed experimental setup.
Mentions: The measurement setup is shown in Figure 4. It is arranged on a massive base plate made of gray iron with a thermal expansion coefficient of 12.3 × 10−6 K−1. The optical components are put into 3″ gimbal transmitting mounts TRANS 90G (OWIS) optimized for a maximum aperture. These transmitting mounts are combined with goniometers with a range of adjustment of ±10° designed and made for precise rotation of the optical components around a defined optical axis. The final adjustment can be fixed with a screw. The used transmitting mounts are made from aluminum alloy with a declared thermal expansion coefficient of 23.5 × 10−6 K−1 and the gauge block holder and the reference surface holder are made from steel with a thermal expansion coefficient of 10.6 × 10−6 K−1.

Bottom Line: 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.

View Article: PubMed Central - PubMed

Affiliation: Institute of Scientific Instruments, Academy of Sciences of the Czech Republic, Brno, Czech Republic. buchta@isibrno.cz

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.

No MeSH data available.