Petri Kärhä
Principal University Lecturer
T410 Dept. Electrical Engineering and Automation
Principal University Lecturer
Full researcher profile
https://research.aalto.fi/...
Email
petri.karha@aalto.fi
Postal address
Maarintie 8
02150 Espoo
Finland
Phone number
+358505968469
Research groups
- Metrology Research Institute, Senior University Lecturer
Publications
Results of an International Comparison of Indoor Photovoltaic Measurements Among Seven Metrological Institutes
Afsaneh Eghbali, Petri Kärhä, Erkki Ikonen, Ingo Kröger, Yean San Long, Min An Tsai, Karsten Bothe, David Hinken, Özcan Bazkir, Jimmy Dubard, Pierre Betis, George Koutsourakis, James Blakesley, Daniel E. Parsons, Stefan Winter
2025
Solar RRL
Reaching a consensus on indoor photovoltaics testing
Robert L.Z. Hoye, George Koutsourakis, Marina Freitag, Zacharie Jehl Li-Kao, Thomas Österberg, Simon Aliwell, Mathieu Bellanger, Thomas M. Brown, Francesca Brunetti, Matthew J. Carnie, Abhisek Chakraborty, Giulia Grancini, Petri Kärhä, Matthias Kauer, Thomas Kirchartz, Chieh Ting Lin, Monica Lira-Cantú, Yean San Long, Senol Öz, Sonia R. Raga, Edgardo Saucedo, Paola Vivo, Shin Woei Leow, Konrad Wojciechowski, Andrea Zampetti, Ru Zhou, Simon Züfle, Gregory Burwell
2025
Joule
Infrared-A (IR-A) modulates the p53 pathway and diurnal clock in human skin and subcutaneous adipose tissue in vivo
Iina Maria Häggqvist, Juha Jernman, Erna Snellman, Petri Kärhä, Rafael Pasternack, Timo Partonen, Piia Karisola
2025
Journal of Photochemistry and Photobiology B: Biology
Evaluation of on-site calibration procedures for SKYNET Prede POM sun-sky photometers
Monica Campanelli, Victor Estellés, Gaurav Kumar, Teruyuki Nakajima, Masahiro Momoi, Julian Gröbner, Stelios Kazadzis, Natalia Kouremeti, Angelos Karanikolas, Africa Barreto, Saulius Nevas, Kerstin Schwind, Philipp Schneider, Iiro Harju, Petri Kärhä, Henri Diémoz, Rei Kudo, Akihiro Uchiyama, Akihiro Yamazaki, Anna Maria Iannarelli, Gabriele Mevi, Annalisa Di Bernardino, Stefano Casadio
2024
Atmospheric Measurement Techniques
Differential Spectral Responsivity of Solar Cells Measured with an LED Based Experimental Setup
Afsaneh Eghbali Yeldagermani, Erkki Ikonen, Petri Karha
2024
2023 Middle East and North Africa Solar Conference, MENA-SC 2023 - Proceedings
Infrared-A to improve mood: an exploratory study of water-filtered infrared-A (wIRA) exposure
Iina Maria Häggqvist, Petri Kärhä, Hannu Kautiainen, Erna Snellman, Rafael Pasternack, Timo Partonen
2024
Photochemical and Photobiological Sciences
Spectral analysis of deviations from key comparison reference values
Kinza Maham, Vili Kosonen, Juha Peltoniemi, Petri Kärhä, Erkki Ikonen
2024
Metrologia
Digital implementations for determination of temporal light artefacts of LED luminaires
V. Mantela, R. Nordlund, J. Askola, P. Kärhä, E. Ikonen
2024
Lighting Research and Technology
Improvement of temporal light artefact effects in commercial LED lamps
V. Mantela, R. Nordlund, J. Askola, P. Kärhä, P. Dekker, E. Ikonen
2024
Lighting Research and Technology
Spectral Mismatch Uncertainty Estimation in Solar Cell Calibration Using Monte Carlo Simulation
Kinza Maham, Petri Karha, Erkki Ikonen
2023
IEEE Journal of Photovoltaics