Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Jens Illemann"'
Publikováno v:
Measurement Science and Technology. 34:084002
The metrological structural resolution (MSR) describes the size of the smallest surface feature that can be measured dimensionally with a given accuracy. Several methods to determine the MSR for dimensional x-ray CT (dXCT) have been proposed in the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f19aed8b8f1f7d2b38134b100789bcba
https://doi.org/10.1088/1361-6501/accd8b
https://doi.org/10.1088/1361-6501/accd8b
Validation of a fast and traceable radiographic scale calibration of dimensional computed tomography
Autor:
Ulrich Neuschaefer-Rube, Jens Illemann, Matthias Sturm, Benjamin A Bircher, Felix Meli, Carsten Bellon, Sergei Evsevleev
Publikováno v:
Measurement Science and Technology. 33:094007
A fast and highly precise method of determining the geometrical scale factor of computed tomography (CT) measurements has been validated successfully by Bundesanstalt für Materialforschung und -prüfung (BAM), the Federal Institute of Metrology (MET
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b9f5a77c59e5a698ee50f7c557348160
https://doi.org/10.1088/1361-6501/ac74a3
https://doi.org/10.1088/1361-6501/ac74a3
Autor:
Sønnik Clausen, C. Guardamagna, Henning Engelbrecht Larsen, Federico Cernuschi, Lorenzo Lorenzoni, Ulrich Neuschaefer-Rube, Jens Illemann, Christian Rothleitner
Publikováno v:
Powder Technology. 318:95-109
Accurate particle mass and velocity measurement is needed for interpreting test results in erosion tests of materials and coatings. The impact and damage of a surface is influenced by the kinetic energy of a particle, i.e. particle mass and velocity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35dab89777fd3e58db1f2e0a45030c58
https://doi.org/10.1016/j.powtec.2017.05.042
https://doi.org/10.1016/j.powtec.2017.05.042
Publikováno v:
Case Studies in Nondestructive Testing and Evaluation. 6:79-92
ISO/TC 213/WG 10 is responsible for creating international standards (series ISO 10360) for the acceptance testing of coordinate measuring systems (CMSs). A current topic is creating a future part of ISO 10360 for CMSs using dimensional computed tomo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::59d940b0c96b14a38e39f9069dd2d758
Autor:
Markus Bartscher, Ulrich Neuschaefer-Rube, Alessandro Stolfi, Simone Carmignato, Jens Illemann, Fabrício Borges de Oliveira
Publikováno v:
Industrial X-Ray Computed Tomography ISBN: 9783319595719
This chapter focuses on system verification and conformance to specifications. System qualification is carried out to ensure that the system and its components achieve the best performance—usually corresponding to the specifications made by the man
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1b82d8574776fa37fb0c845c4eb1cf5e
https://doi.org/10.1007/978-3-319-59573-3_6
https://doi.org/10.1007/978-3-319-59573-3_6
Publikováno v:
Journal of Applied Physics. 90:5410-5418
A method for the nondestructive high-resolution and absolute mass determination of charged particles is described. It is based on the detection of light scattered from a single particle in an electrodynamical three-dimensional quadrupole trap. From t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::842f8f38fdd98497cb66da5e91c2d601
https://doi.org/10.1063/1.1397295
https://doi.org/10.1063/1.1397295
Autor:
Jens Illemann, Andreas Just
Publikováno v:
Optical Metrology in Production Engineering.
For industry and research there is an interest in increasing large master surfaces and other unique optics. Even for meter-scale objects, an uncertainty of form measurement in the range of nanometers has to be fulfilled. The deviation in the radius o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c5c1a40426fa96d6a2ada48794e987e0
https://doi.org/10.1117/12.545666
https://doi.org/10.1117/12.545666
Autor:
Matthias Wurm, Jens Illemann
Publikováno v:
AIP Conference Proceedings.
The technological limits to the beam quality of modern synchrotron‐radiation sources are set by the geometrical accuracy of the optical components. The fabrication of these components is limited by the measuring technique. The exactly measured topo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b40246d3cba287fd4a731f0bc1b74d4
https://doi.org/10.1063/1.1757927
https://doi.org/10.1063/1.1757927
Publikováno v:
SPIE Proceedings.
Surfaces as needed in optical systems, ranging from the visible even into the EUV region, become larger and often have a length or diameter of 500 mm and more. The form of these surfaces, describing the surface spatial frequency content with componen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f33c8998fa86ece8a8bee279b8000598
https://doi.org/10.1117/12.503700
https://doi.org/10.1117/12.503700
Autor:
Jens Illemann
Publikováno v:
SPIE Proceedings.
The absolute measurement of the surface figure of large, slightly curved specimens with nanometer accuracy is a demanding task and has not yet been satisfactorily solved. Deflectometric methods offer the possibility of measuring specimens of arbitrar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f6bdb77f62830a0bbce2f8acdb7c69c
https://doi.org/10.1117/12.507867
https://doi.org/10.1117/12.507867