Prof. Hartmut Ewald Profile

Prof. Hartmut Ewald

Chair of Technical Electronic & Sensors at Univ Rostock

SPIE Involvement:

Author

Publications (19)

Proceedings Article | 17 February 2017 Presentation + Paper

Sensor system for non-invasive optical carboxy-and methemoglobin determination

Ulrich Timm, Helge Gewiss, Jens Kraitl, Beate Brock, Hartmut Ewald

Proceedings Volume 10072, 100720Y (2017) https://doi.org/10.1117/12.2252549

KEYWORDS: Oxygen, Sensors, Carbon monoxide, Blood, Hypoxia, Absorbance, Calibration, Molecules, Iron

Read Abstract +

Proceedings Article | 4 March 2016 Presentation + Paper

Novel multi wavelength sensor concept to measure carboxy- and methemoglobin concentration non-invasively

Ulrich Timm, Jens Kraitl, Helge Gewiss, Svend Kamysek, Beate Brock, Hartmut Ewald

Proceedings Volume 9715, 97150S (2016) https://doi.org/10.1117/12.2211658

KEYWORDS: Oxygen, Sensors, Carbon monoxide, Hypoxia, Blood, Diagnostics, Sensing systems, Oximetry, Oximeters, In vivo imaging, Blood circulation, Tissues, Molecules

Read Abstract +

Proceedings Article | 9 March 2015 Paper

Novel multi wavelength sensor concept to detect total hemoglobin concentration, methemoglobin and oxygen saturation

Ulrich Timm, Helge Gewiss, Jens Kraitl, Kirstin Stuepmann, Michael Hinz, Sebastian Koball, Hartmut Ewald

Proceedings Volume 9332, 93320J (2015) https://doi.org/10.1117/12.2080144

KEYWORDS: Blood, Oxygen, Sensors, Blood circulation, Sodium, Hypoxia, Oximetry, Light emitting diodes, In vivo imaging, Nephrology

Read Abstract +

Proceedings Article | 28 February 2014 Paper

Novel noninvasive point-of-care device for real time hemoglobin monitoring

Ulrich Timm, Helge Gewiss, Jens Kraitl, Kirstin Stuepmann, Michael Hinz, Sebastian Koball, Hartmut Ewald

Proceedings Volume 8951, 89510U (2014) https://doi.org/10.1117/12.2038202

KEYWORDS: Blood, Oxygen, Absorption, Plasma, Point-of-care devices, Blood circulation, Arteries, Surgery, Diagnostics, Spectroscopy

Read Abstract +

Proceedings Article | 22 March 2013 Paper

Photometric sensor system for a non-invasive real-time hemoglobin monitoring

Ulrich Timm, Jens Kraitl, Kirstin Schnurstein, Hartmut Ewald

Proceedings Volume 8572, 857204 (2013) https://doi.org/10.1117/12.2001421

KEYWORDS: Blood, Oxygen, Sensors, Absorption, Tissues, Blood circulation, Tissue optics, Calibration, Light emitting diodes, Plasma

Read Abstract +

Proceedings Article | 28 February 2013 Paper

Simulations of light propagation in biological tissues by considering the modeling of light sources and sensors

David Klinger, Jens Kraitl, Hartmut Ewald

Proceedings Volume 8583, 858303 (2013) https://doi.org/10.1117/12.2003904

KEYWORDS: Sensors, Tissues, Natural surfaces, Light sources, Reflectivity, Monte Carlo methods, Light, Light emitting diodes, Reflectors, Systems modeling

Read Abstract +

Proceedings Article | 25 February 2013 Paper

Non-invasive measurement of blood and tissue parameters based on VIS-NIR spectroscopy

Jens Kraitl, Ulrich Timm, Hartmut Ewald

Proceedings Volume 8591, 859105 (2013) https://doi.org/10.1117/12.2001274

KEYWORDS: Blood, Absorption, Tissue optics, Oxygen, Tissues, In vivo imaging, Spectrometers, Monte Carlo methods, Near infrared, Sensors

Read Abstract +

Proceedings Article | 25 February 2013 Paper

Blood circulatory system for noninvasive diagnostics

D. Fricke, J. Kraitl, H. Ewald

Proceedings Volume 8591, 85910L (2013) https://doi.org/10.1117/12.2000644

KEYWORDS: Blood, Circulatory system, Oxygen, Spectroscopy, Absorption, Scattering, Oximeters, Plasma, Tissues, Light emitting diodes

Read Abstract +

Proceedings Article | 17 May 2011 Paper

In-situ monitoring of carbon dioxide emissions from a diesel engine using a mid-infrared optical fibre sensor

Elfed Lewis, John Clifford, Colin Fitzpatrick, Gerard Dooly, Weizhong Zhao, Tong Sun, Ken Grattan, James Lucas, Martin Degner, Hartmut Ewald, Steffan Lochmann, Gero Bramann, Edoardo Merlone-Borla, Flavio Gili

Proceedings Volume 7753, 77534P (2011) https://doi.org/10.1117/12.885186

KEYWORDS: Sensors, Optical fibers, Carbon dioxide, Mid-IR, Gas sensors, Carbon monoxide, Oxides, Infrared radiation, Infrared sensors, Roads

Read Abstract +

Proceedings Article | 26 February 2010 Paper

Optical sensor technology for a noninvasive continuous monitoring of blood components

Jens Kraitl, Ulrich Timm, Elfed Lewis, Hartmut Ewald

Proceedings Volume 7572, 757209 (2010) https://doi.org/10.1117/12.843153

KEYWORDS: Blood, Oxygen, Tissue optics, Sensors, Absorption, Tissues, Signal detection, Light emitting diodes, Plasma, Absorbance

Read Abstract +

Proceedings Article | 14 February 2007 Paper

Optical sensor technology for a noninvasive medical blood diagnosis

Jens Kraitl, Hartmut Ewald, Hartmut Gehring

Proceedings Volume 6445, 64450A (2007) https://doi.org/10.1117/12.702480

KEYWORDS: Blood, Tissues, Signal detection, Absorption, Oxygen, In vitro testing, Plasma, In vivo imaging, Semiconductor lasers, Hemodynamics

Read Abstract +

Proceedings Article | 14 February 2007 Paper

Analysis of biomedical time signals for characterization of cutaneous diabetic micro-angiopathy

Jens Kraitl, Hartmut Ewald

Proceedings Volume 6445, 64450T (2007) https://doi.org/10.1117/12.702468

KEYWORDS: Wavelets, Heart, Continuous wavelet transforms, Signal detection, Control systems, Measurement devices, Digital signal processing, Analytical research, Blood, In vivo imaging

Read Abstract +

Proceedings Article | 17 July 2006 Paper

Optical spatial filter for two-dimensional speed measurement, position monitoring, and particle sizing

S. Bergeler, H. Krambeer, H. Ewald

Proceedings Volume 6342, 63421A (2006) https://doi.org/10.1117/12.692286

KEYWORDS: Sensors, Spatial filters, Particles, CMOS sensors, Particle sizing, CCD image sensors, Motion measurement, Velocimetry, Ocean optics, Metals

Read Abstract +

Proceedings Article | 21 April 2006 Paper

Low-cost sensor for online detection of harmful diesel combustion gases in UV-VIS region

Martin Degner, Hartmut Ewald

Proceedings Volume 6198, 619806 (2006) https://doi.org/10.1117/12.662789

KEYWORDS: Absorption, Gases, Sensors, Calibration, Databases, Combustion, Gas sensors, Receivers, Semiconductors, Photodiodes

Read Abstract +

Proceedings Article | 3 June 2005 Paper

Optical position monitoring using spatial filters for improved magnet-inductive prospection of metal pieces

S. Bergeler, H. Ewald, H. Krambeer, E. Kubota

Proceedings Volume 5826, (2005) https://doi.org/10.1117/12.606159

KEYWORDS: Sensors, Spatial filters, Metals, CMOS sensors, Content addressable memory, Mining, CCD image sensors, Velocity measurements, Cameras, Magnetic sensors

Read Abstract +

Proceedings Article | 3 June 2005 Paper

Optical fibre sensors for the monitoring of harmful emissions from land transport vehicles

Jim Mulrooney, John Clifford, Colin Fitzpatrick, Elfed Lewis, W. Z. Zhao, T. Sun, K. Grattan, M. Degner, H. Ewald, S. Lochmann, A. Al-Shamma'a, J. Lucas, E. Merlone Borla, P. Faraldi, M. Pidria

Proceedings Volume 5826, (2005) https://doi.org/10.1117/12.606174

KEYWORDS: Sensors, Optical fibers, Absorption, Gases, Mid-IR, Carbon monoxide, Infrared radiation, Temperature metrology, Infrared sensors, Pyroelectric detectors

Read Abstract +

Proceedings Article | 3 June 2005 Paper

A non-invasive optical monitoring system for the multi-spectral determination of absorption changes in blood

J. Kraitl, H. Ewald

Proceedings Volume 5826, (2005) https://doi.org/10.1117/12.606162

KEYWORDS: Blood, Absorption, Signal detection, Tissue optics, Semiconductor lasers, Measurement devices, Absorbance, Oxygen, Scattering, Sensors

Read Abstract +

Proceedings Article | 30 October 2001 Paper

Multipoint optical evanescent wave U-bend sensor system based on artificial neural network pattern recognition

William Lyons, Colin Flanagan, Steffen Lochman, Hartmut Ewald, Elfed Lewis

Proceedings Volume 4596, (2001) https://doi.org/10.1117/12.447361

KEYWORDS: Sensors, Optical fibers, Signal attenuation, Artificial neural networks, Wave sensors, Neural networks, Optical pattern recognition, Absorption, Cladding, Fiber optics sensors

Read Abstract +

Proceedings Article | 14 November 1996 Paper

Classification of eddy current signals using fuzzy logic and neural networks

Hartmut Ewald, Michael Stieper

Proceedings Volume 2947, (1996) https://doi.org/10.1117/12.259171

KEYWORDS: Fuzzy logic, Neural networks, Signal processing, Neurons, Defect detection, Signal generators, Feature extraction, Nondestructive evaluation, Aluminum, Classification systems

Read Abstract +

Showing 5 of 19 publications

Conference Committee Involvement (1)

Optical Sensing

4 April 2005 | Dublin, Ireland

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years