Petri Kärhä

Petri Kärhä

Vanhempi yliopistonlehtori
T405 Dept. Signal Processing and Acoustics
Vanhempi yliopistonlehtori
Full researcher profile
https://research.aalto.fi/...

Contact information

Postal address
Maarintie 8 02150 Espoo Finland
Phone number
+358505968469

Publications

Effect of adaptive control on the LED street luminaire lifetime and on the lifecycle costs of a lighting installation

J. Askola, P. Kärhä, H. Baumgartner, S. Porrasmaa, E. Ikonen 2021 Lighting Research and Technology

Measurement setup for differential spectral responsivity of solar cells

Petri Kärhä, Hans Baumgartner, Janne Askola, Kasperi Kylmänen, Benjamin Oksanen, Kinza Maham, Vo Huynh, Erkki Ikonen 2020 OPTICAL REVIEW

Interlaboratory Comparison of the PV Module Energy Rating Standard IEC 61853-3

M.R Vogt, S. Riechelmann, A.M. Gracia-Amillo, Anton Driesse, Alexander Kokka, Kinza Maham, Petri Kärhä, R. Kenny, C. Schinke, K. Bothe, J.C. Blakesley, E. Music, F. Plag, G. Friesen, G. Corbellini, N. Riedel-Lyngskær, R. Valckenborg, M. Schweiger, W. Herrmann 2020 Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition

Proceedings of OIE 2019

Petri Kärhä, Erkki Ikonen, Kai-Erik Peiponen, Yoshio Hayasaki 2019

General tool for estimating effects of unknown correlations on spectral integrals

Tomi Pulli, Anna Vaskuri, Petri Kärhä, Henrik Mäntynen, Erkki Ikonen 2019

Influence of smart lighting control on the lifetime of high power LED luminaires

Janne Askola, Hans Baumgartner, Tomi Pulli, Petri Kärhä, Erkki Ikonen 2019 IOP Conference Series: Earth and Environmental Science

Flat-field calibration method for hyperspectral frame cameras

Alexander Kokka, Tomi Pulli, Eija Honkavaara, Lauri Markelin, Petri Kärhä, Erkki Ikonen 2019 Metrologia

Reduced lifetime of LED street luminaires due to adaptive control

Janne Askola, Hans Baumgartner, Tomi Pulli, Petri Kärhä, Erkki Ikonen 2019

Optical Characterization of III-V Multijunction Solar Cells for Temperature-Independent Band Gap Features

H. Baumgartner, B. Oksanen, P. Kärhä, E. Ikonen 2019 IEEE Journal of Photovoltaics

LED based reference for wavelength and relative intensity

Hans Baumgartner, Kasperi Kylmanen, Olli Kantamaa, Petri Karha, Erkki Ikonen 2018 Journal of Physics: Conference Series