Dr. Ralph Hohenstein

Mitarbeiterprofil

No projects found.

Brock C., Hohenstein R., Schmidt M.:
Mechanisms of vapour plume formation in laser deep penetration welding
In: Optics and Lasers in Engineering 58 (2014), p. 93-101
ISSN: 0143-8166
DOI: 10.1016/j.optlaseng.2014.02.001

Bechtold P., Hohenstein R., Schmidt M.:
Beam shaping and high-speed, cylinder-lens-free beam guiding using acousto-optical deflectors without additional compensation optics
In: Optics Express 21 (2013), p. 14627-14635
ISSN: 1094-4087
DOI: 10.1364/OE.21.014627
Bechtold P., Hohenstein R., Schmidt M.:
Evaluation of disparate laser beam deflection technologies by means of number and rate of resolvable spots
In: Optics Letters 38 (2013), p. 2934-2937
ISSN: 0146-9592
DOI: 10.1364/OL.38.002934
Brock C., Tenner F., Klämpfl F., Hohenstein R., Schmidt M.:
Detection of weld defects by high speed imaging of the vapor plume
In: Physics Procedia 41 (2013), p. 532-536
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2013.03.113
Hohenstein R., Tenner F., Brock C., Schmidt M.:
A Method to Remotely Measure Amplitudes of Surface Vibrations with a Conventional Michelson Interferometer
In: Proceedings of OPTO 2013 2013
Tenner F., Brock C., Hohenstein R., Zalevsky Z., Schmidt M.:
Remote Optical Detection of the Fusion State in Laser Deep Penetration Welding
In: Physics Procedia 41 (2013), p. 508--512
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2013.03.109

Brock C., Hohenstein R., Schmidt M.:
Towards fast tracking of the keyhole geometry
6th International WLT Conference on Lasers in Manufacturing, LiM (Munich)
DOI: 10.1016/j.phpro.2011.03.087

Schmidt M., Hohenstein R., Brock C.:
Optical 3D Position Sensor for the Fast Tracking of Light Sources
In: Physics Procedia 5 (2010), p. 437--445
ISSN: 1875-3892
DOI: 10.1016/j.phpro.2010.08.071

Geiger M., Hohenstein R.:
Near-Field 3D Position Sensing using Optical Fibers
In: WGP (ed.): Production Engineering Research and Development - Annals of the German Academic Society for Production Engineering 2008

Hohenstein R., Dietrich S., Otto A.:
Optical In-Process Sensor for Laser Beam Welding
In: Geiger, M.; Otto, A.; Schmidt, M. (ed.): Proceedings of the LANE 2007 2007
Otto A., Hohenstein R.:
Laserstrahlschweißen - Trends und aktuelle Entwicklungen
In: Laser Technik Journal (2007), p. 27-31
ISSN: 1613-7728
Otto A., Hohenstein R.:
Process Sensing and Control
In: Geiger, M.; Otto, A.; Schmidt, M. (ed.): Proceedings of the LANE 2007 2007
Otto A., Hohenstein R., Dietrich S.:
Closed Loop Control of Laser Beam Welding
XIV. International Symposium on Gas Flow and Chemical Lasers & High Power Laser Conference
In: SPIE - The International Society for Optical Engineering (ed.): Proceedings of the XIV. International Symposium on Gas Flow and Chemical Lasers & High Power Laser Conference 2007
DOI: 10.1117/12.738149

Hohenstein R.:
In-Prozesserfassung der axialen Fokuslage bei beliebigen Laserprozessen
In: BLZ & Bayern Photonics (ed.): Tagungsband zum Workshop Inline-Qualitätssicherung beim Laserstrahlfügen 2006
Otto A., Hohenstein R., Dietrich S.:
Diagnostik und Regelung beim Laserstrahlschweißen
In: Vollertsen, F.; Seefeld, T. (ed.): Strahltechnik Band 28, Tagungsband zum 5. Laser-Anwendeforum 2006

Geiger M., Hohenstein R.:
An Architecture for Multivariate laser Process Control
In: WGP (ed.): Production Engineering. Annals of the German Academic Society for Production Engineering 2005

Geiger M., Kach A., Hohenstein R., Maros Z.:
Fuzzy-Logic knowledge representation for water jet cutting of lightweight composites
In: Machining Science and Technology 7 (2003), p. 349-360
ISSN: 1091-0344

Hohenstein R., Agakov F.:
Towards multi parameter control for laser beam welding
In: Idee-Vision-Innovation, Festschrift anläßlich des 60. Geburtstages von Professor Manfred Geiger, 2001

Hohenstein R., Otto A., Geiger M.:
Systemanalyse des dynamischen Prozessverhaltens beim Laserstrahlschweißen
In: Strahl-Stoff-Wechselwirkung bei der Laserstrahlbearbeitung 2, Strahltechnik, 1998, p. 125-130