Research output per year
Research output per year
Personal profile
Education/Academic qualification
Doctoral degree, Engineering and Technology, Helsinki University of Technology
Award Date: 16 Dec 1997
Licentiate degree, Engineering and Technology, Helsinki University of Technology
Award Date: 19 Dec 1995
Master's degree, Engineering and Technology, Helsinki University of Technology
Award Date: 26 Jan 1993
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Effect of adaptive control on the LED street luminaire lifetime and on the lifecycle costs of a lighting installation
Askola, J., Kärhä, P., Baumgartner, H., Porrasmaa, S. & Ikonen, E., 3 May 2021, (E-pub ahead of print) In: Lighting Research and Technology. 15 p., 14771535211008179.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile8 Downloads (Pure) -
Increased detector response in optical overfilled measurements due to gas lens formation by nitrogen flow through the entrance aperture
Askola, J., Maham, K., Kärhä, P. & Ikonen, E., Oct 2021, In: Metrologia. 58, 5, 5 p., 055008.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Downloads (Pure) -
Biennial Report 2018 - 2019: Metrology Research Institute
Kärhä, P. (ed.) & Huttu, I. (ed.), 2020, AALTO-YLIOPISTO. 32 p. (Aalto University publication series SCIENCE + TECHNOLOGY; vol. 2020, no. 4)Research output: Book/Report › Commissioned report
Open Access -
Interlaboratory Comparison of the PV Module Energy Rating Standard IEC 61853-3
Vogt, M. R., Riechelmann, S., Gracia-Amillo, A. M., Driesse, A., Kokka, A., Maham, K., Kärhä, P., Kenny, R., Schinke, C., Bothe, K., Blakesley, J. C., Music, E., Plag, F., Friesen, G., Corbellini, G., Riedel-Lyngskær, N., Valckenborg, R., Schweiger, M. & Herrmann, W., 2020, Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition. p. 811-815 5 p. (Proceedings of the European Photovoltaic Solar Energy Conference and Exhibition).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review
Open AccessFile10 Downloads (Pure) -
Measurement setup for differential spectral responsivity of solar cells
Kärhä, P., Baumgartner, H., Askola, J., Kylmänen, K., Oksanen, B., Maham, K., Huynh, V. & Ikonen, E., 1 Apr 2020, In: OPTICAL REVIEW. 27, 2, p. 195 - 204 10 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile2 Citations (Scopus)91 Downloads (Pure)
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MetTLM: Metrology for temporal light modulation
Kärhä, P. & Nordlund, R.
01/05/2021 → 30/04/2024
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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Metro-PV: Metrology for Emerging PV applications
Kärhä, P., Maham, K., Lahti, L. & Huttu, I.
01/09/2020 → 31/08/2023
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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RevStdLED (EMPIR)
Kärhä, P., Askola, J., Mantela, V. & Lahti, L.
01/09/2020 → 31/08/2023
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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MAPP (EMPIR)
Kärhä, P., Harju, I., Maham, K. & Lahti, L.
01/06/2020 → 31/05/2023
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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Advanced PV Energy Rating
Manoocheri, F., Baumgartner, H., Kärhä, P. & Maham, K.
01/05/2017 → 30/09/2020
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
Activities
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EMPIR PV-Enerate Partnering Meeting
Petri Kärhä (Visiting researcher)
21 Oct 2019 → 22 Oct 2019Activity: Visiting an external institution types › Visit abroad
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QMS periodical re-evaluation of MIKES-aALTO
Petri Kärhä (Speaker)
17 Apr 2019Activity: Talk or presentation types › Conference presentation
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NPL National Physical Laboratory
Petri Kärhä (Visiting researcher) & Toni Laurila (Visiting researcher)
26 Jun 2019 → 27 Jun 2019Activity: Visiting an external institution types › Visit abroad
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Physikalisch-Technische Bundesanstalt (PTB)
Petri Kärhä (Visiting researcher), Farshid Manoocheri (Visiting researcher), Dmitri Lanevski (Visiting researcher) & Janne Askola (Visiting researcher)
25 Jun 2019 → 26 Jun 2019Activity: Visiting an external institution types › Visit abroad
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Physikalisch-Technische Bundesanstalt (PTB)
Petri Kärhä (Visiting researcher) & Janne Askola (Visiting researcher)
27 Jun 2019 → 28 Jun 2019Activity: Visiting an external institution types › Visit abroad