Ralf Hellmann

Publication Activity (10 Years)

Years Active: 2012-2022
Publications (10 Years): 12

Top Topics

Convolutional Neural Network

Top Venues

Publications

Max Schleier, Benedikt Adelmann, Cemal Esen, Ralf Hellmann
Image Processing Algorithm for In Situ Monitoring Fiber Laser Remote Cutting by a High-Speed Camera. Sensors 22 (8) (2022)
Jorrit Voigt, Thomas Bock, Uwe Hilpert, Ralf Hellmann, Michael Moeckel
Edge effects in radial porosity profiles from CT measurements and melt pool signal intensities for laser powder bed fusion. CoRR (2022)
Benedikt Adelmann, Ralf Hellmann
Simultaneous Burr and Cut Interruption Detection during Laser Cutting with Neural Networks. Sensors 21 (17) (2021)
Benedikt Adelmann, Max Schleier, Ralf Hellmann
Laser Cut Interruption Detection from Small Images by Using Convolutional Neural Network. Sensors 21 (2) (2021)
Steffen Hessler, Marieke Rüth, Horst-Dieter Lemke, Bernhard Schmauss, Ralf Hellmann
Deep UV Formation of Long-Term Stable Optical Bragg Gratings in Epoxy Waveguides and Their Biomedical Sensing Potentials. Sensors 21 (11) (2021)
Stefan Kefer, Theresia Sauer, Steffen Hessler, Michael Kaloudis, Ralf Hellmann
Microstructure-Based Fiber-To-Chip Coupling of Polymer Planar Bragg Gratings for Harsh Environment Applications. Sensors 20 (19) (2020)
Maiko Girschikofsky, Dimitrij Ryvlin, Siegfried R. Waldvogel, Ralf Hellmann
Optical Sensor for Real-Time Detection of Trichlorofluoromethane. Sensors 19 (3) (2019)
Steffen Hessler, Patrick Bott, Stefan Kefer, Bernhard Schmauss, Ralf Hellmann
Multipurpose Polymer Bragg Grating-Based Optomechanical Sensor Pad. Sensors 19 (19) (2019)
Benedikt Adelmann, Christian Lutz, Ralf Hellmann
Investigation on shear and tensile strength of laser welded electrical sheet stacks. CASE (2018)
Maiko Girschikofsky, Manuel Rosenberger, Michael Förthner, Mathias Rommel, Lothar Frey, Ralf Hellmann
s for Temperature Sensing. Sensors 17 (11) (2017)
Manuel Rosenberger, Bernhard Schmauss, Ralf Hellmann
UV-Writing of a Superstructure Waveguide Bragg Grating in a Planar Polymer Substrate. Sensors 17 (9) (2017)
Hendrikje Pauer, Manuel Rosenberger, Maiko Girschikofsky, Ralf Hellmann, Wilderich Tuschmann, Heinz Wörn
Towards 1-component Bragg-grating based shape sensing. FUSION (2016)
Manuel Rosenberger, Waltraud Eisenbeil, Bernhard Schmauss, Ralf Hellmann
Simultaneous 2D Strain Sensing Using Polymer Planar Bragg Gratings. Sensors 15 (2) (2015)
Florian Preusch, Benedikt Adelmann, Ralf Hellmann
Using Fiber Laser. Micromachines 5 (4) (2014)
Stefan Rung, Johannes Barth, Ralf Hellmann
Characterization of Laser Beam Shaping Optics Based on Their Ablation Geometry of Thin Films. Micromachines 5 (4) (2014)
Maiko Girschikofsky, Manuel Rosenberger, Stefan Belle, Malte Brutschy, Siegfried R. Waldvogel, Ralf Hellmann
Highly Sensitive Detection of Naphthalene in Solvent Vapor Using a Functionalized PBG Refractive Index Sensor. Sensors 12 (2) (2012)