Measuring of exhaust gas emissions using absorption spectroscopy. - Eamonn Hawe; Gerard Dooly; Colin Fitzpatrick; Paul Chambers; Elfed Lewis; Weizhong Zhao; Tong Sun 004; K. T. V. Grattan; Martin Degner; Hartmut Ewald; Steffen Lochmann; G. Bramman; et al. (Int. J. Intell. Syst. Technol. Appl., 2007)

Monitoring of Environmentally Hazardous Exhaust Emissions from Cars Using Optical Fibre Sensors. - Elfed Lewis; John Clifford; Colin Fitzpatrick; Gerard Dooly; Weizhong Zhao; Tong Sun 004; K. T. V. Grattan; James Lucas; Martin Degner; Hartmut Ewald; Steffen Lochmann; Gero Bramann; et al. (SAMOS, 2008)

Multiobjective Optimization of an Electrostimulative Acetabular Revision System. - Carsten Potratz; Daniel Kluess; Hartmut Ewald; Ursula van Rienen (IEEE Trans. Biomed. Eng., 2010)

Signal Processing and Pattern Recognition for Eddy Current Sensors, Used for Effective Land-Mine Detection. - Hendrik Krüger; Hartmut Ewald (AIS, 2011)

A New Method for Detection of Total Hip Replacement Loosening - Development and First Results of a Novel Mechano-acoustical Sensor. - Cathérine Ruther; Daniel Kluess; Andreas Fritsche; Wolfram Mittelmeier; Rainer Bader; Hartmut Ewald (BIODEVICES, 2011)

A New Approach for Diagnostic Investigation of Total Hip Replacement Loosening. - Cathérine Ruther; Ulrich Timm; Andreas Fritsche; Hartmut Ewald; Wolfram Mittelmeier; Rainer Bader; Daniel Kluess (BIOSTEC (Selected Papers), 2011)

Investigation of a Passive Sensor Array for Diagnosis of Loosening of Endoprosthetic Implants. - Cathérine Ruther; Christian Schulze; Andrea Boehme; Hannes Nierath; Hartmut Ewald; Wolfram Mittelmeier; Rainer Bader; Daniel Kluess (Sensors, 2013)

Micromirror array based optical spatial filter technique for fast and flexible velocimetry. - Martin Degner; Hendrik Krüger; Hartmut Ewald (I2MTC, 2014)

Evaluation of a micromirror array based sensor system for optical velocity measurements using the Spatial Filter Velocimetry approach. - Hendrik Krüger; Martin Degner; Hartmut Ewald (I2MTC, 2014)

Comparison of two variants of a novel setup for real time high resolution UV-LED absorption spectroscopy. - Eric Ebert; Hendrik Krüger; Hartmut Ewald; Marian Rabe; Nils Andreas Damaschke (ICST, 2015)

A flexible measurement system for absorption spectrometry using LED light sources and a high accuracy two-channel ADC for simultaneous sampling. - Hendrik Krüger; Marian Rabe; Eric Ebert; Patrick Busch; Nils Andreas Damaschke; Hartmut Ewald (ICST, 2015)

Using atmospheric temperature variations for thermal energy harvesting for wireless sensors. - Frank Lebahn; Hartmut Ewald (ICST, 2015)

Mode filter for LED-based absorption spectroscopy. - Marian Rabe; Hendrik Krüger; Eric Ebert; Nils Damaschke; Hartmut Ewald (I2MTC, 2016)

Determination of standing-time of dairy cows using 3D-accelerometer data from collars. - Patrick Busch; Hartmut Ewald; Frank Stüpmann (ICST, 2017)

Demonstrator for online measurement of combustion gases NO, NO2 and SO2: A compact sensor system for highly resolved detection of hazardous emission gases. - Martin Degner; Hartmut Ewald (ICST, 2017)

Operating point dependent lifetime estimation of small sized tungsten incandescent lamps. - Henning Jurs; Martin Degner; Hartmut Ewald (ICST, 2017)

Determination of Cattle Standing-Time with Decscion Trees and Neural Nets by using Only Acceleration Data from Collar. - Patrick Busch; Frank Stüpmann; Hartmut Ewald (EECS, 2018)

Selection of Acceleration Sensors for an Activity Monitoring System in Animal Welfare Applications for Dairy Cows. - Frank Stüpmann; Patrick Busch; Hartmut Ewald (EECS, 2018)

Fast and low power optical CO2-sensors for medical application: New sensor designs for main- and side-stream CO2-sensors are presented in comparison with state of the art capnometers. - Martin Degner; Henning Jurs; Hartmut Ewald (I2MTC, 2018)

Mobile gas sensing system for detection of combustion pollutants - suitable for drone based measurements. - Martin Degner; Hartmut Ewald (ICST, 2018)

High speed and high precision electrocardiographic and plethysmographic measurement front-end. - Hans Herrmann; Hartmut Ewald (I2MTC, 2021)

False Positives Avoidance in Pulse Detection from ECG and PPG Sensor Signals. - Hans Herrmann; Hartmut Ewald (IEEE SENSORS, 2021)

Testing and Integration of Commercial Hydrogen Sensor for Ambient Monitoring Application. - Mohammed Faeik Ruzaij Al-Okby; Thomas Roddelkopf; Hartmut Ewald; Kerstin Thurow (SACI, 2023)