2018
DOI: 10.1515/teme-2017-0134
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Von Topographie bis Brechungsindex: Flexibles multi-modales Messen mittels Fusion chromatisch-konfokaler und spektralinterferometrischer Technik

Abstract: Zusammenfassung Bei der Messung technischer Oberflächen treten insbesondere im Umfeld flexibler Fertigung unterschiedlichste Anforderungen auf. Häufig ist eine schnelle hochgenaue Topographie-Messung erwünscht. Durch die Kombination des chromatisch-konfokalen Verfahrens mit der spektralen Interferometrie (Chromatisch-Konfokale Spektral-Interferometrie) ist es möglich, single-shot Messungen mit einem weiten Messbereich und gleichzeitig geringer Unsicherheit zu erzielen. Dabei können ebenso die den beiden einzel… Show more

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“…Compared with electrical sensors such as capacitance and inductance, optical solutions are easier to achieve the large range measurement, which mainly include spectral confocal technology, laser interferometer and grating encoder [14][15]. Spectral confocal technology is mainly used in single-axis micro-displacement measurement and the topography measurement [16][17][18]; the resolution of laser interferometers can reach picometer level, but the optical path structure of laser interferometers is relatively cumbersome, and the measurement accuracy is relatively dependent on the environment [19][20]. The multi-degree-of-freedom measurement needs to be used in combination, which will bring a certain assembly error to the measurement [21][22][23][24]; compared with the laser interferometer, the resolution of the grating encoder can reach the sub-nanometer, and it has a simpler and more compact optical path structure [25][26][27].…”
Section: Introductionmentioning
confidence: 99%
“…Compared with electrical sensors such as capacitance and inductance, optical solutions are easier to achieve the large range measurement, which mainly include spectral confocal technology, laser interferometer and grating encoder [14][15]. Spectral confocal technology is mainly used in single-axis micro-displacement measurement and the topography measurement [16][17][18]; the resolution of laser interferometers can reach picometer level, but the optical path structure of laser interferometers is relatively cumbersome, and the measurement accuracy is relatively dependent on the environment [19][20]. The multi-degree-of-freedom measurement needs to be used in combination, which will bring a certain assembly error to the measurement [21][22][23][24]; compared with the laser interferometer, the resolution of the grating encoder can reach the sub-nanometer, and it has a simpler and more compact optical path structure [25][26][27].…”
Section: Introductionmentioning
confidence: 99%