Research output per year
Research output per year
Personal profile
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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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Network
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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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., Jan 2022, In: Lighting Research and Technology. 54, 1, p. 75-89 15 p., 14771535211008179.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile1 Citation (Scopus)36 Downloads (Pure) -
Improvement In The Temporal Light Artefact Metrics Of Commercial Led Lamps
Ikonen, E., Nordlund, R., Mantela, V., Askola, J. & Kärhä, P., 2022.Research output: Contribution to conference › Abstract › Scientific
Open Access -
In-Space Radiometric Calibration of Nanosatellite Camera
Knuuttila, O., Kallio, E., Partamies, N., Syrjäsuo, M., Kauristie, K., Sofieva, V., Harri, A-M., Kestilä, A., Kivekäs, J., Koskimaa, P., Rynö, J., Tamminen, J., Kärhä, P., Lukkari, J-M., Alho, A. & Pulkkinen, T., 6 Oct 2022, In: JOURNAL OF SMALL SATELLITES. 11, 3, p. 1165-1186 22 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open Access -
Novel Implementations Of Digital Meters For Flicker And Stroboscopic Effect
Mantela, V., Nordlund, R., Askola, J., Kärhä, P. & Ikonen, E., 2022.Research output: Contribution to conference › Abstract › Scientific
Open Access -
Optical power scale realization using the predictable quantum efficient detector
Maham, K., Kärhä, P., Manoocheri, F. & Ikonen, E., 6 Jan 2022, In: Journal of Physics: Conference Series. 2149, 1, 5 p., 012006.Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile32 Downloads (Pure)
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HiDyn: Support for the standardisation of luminance distribution measurements for assessing glare and obtrusive light using high-dynamic-range imaging systems
01/10/2022 → 30/09/2025
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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MetTLM: Metrology for temporal light modulation
Kärhä, P., Mantela, V. & Rezazadeh, Y.
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., Knuutinen, J. & Eghbali Yeldagermani, A.
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., Mantela, V., Askola, J. & Rezazadeh, Y.
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.
01/06/2020 → 31/05/2023
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
Datasets
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Data from PV module energy rating standard IEC 61853-3 intercomparison
Friesen, G. (Contributor), Kokka, A. (Contributor), Riechelmann, S. (Contributor), Valckenborg, R. (Contributor), Plag, F. (Contributor), Schinke, C. (Contributor), Kenny, R. (Contributor), Corbellini, G. (Contributor), Schweiger, M. (Contributor), Bothe, K. (Contributor), Herrmann, W. (Contributor), Gracia-Amillo, A. M. (Contributor), Driesse, A. (Contributor), Riedel-Lyngskær, N. (Contributor), Vogt, M. R. (Contributor), Music, E. (Contributor), Maham, K. (Contributor), Kärhä, P. (Contributor) & Blakesley, J. C. (Contributor), 18 Dec 2021
DOI: 10.5281/zenodo.5750185, https://zenodo.org/record/5750185
Dataset
Activities
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Opponent for Doctoral Dissertation
Petri Kärhä (Examiner)
15 Dec 2021Activity: Academic assessments › Pre-examination of doctoral thesis or acting as opponent to doctoral students or membership of doctoral thesis committee or board
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EMPIR PV-Enerate Partnering Meeting
Petri Kärhä (Visiting researcher)
21 Oct 2019 → 22 Oct 2019Activity: Visiting an external institution types › Visiting an external academic institution
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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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Tallinna Tehnikaulikool
Petri Kärhä (Visiting researcher)
29 Oct 2019Activity: Visiting an external institution types › Visiting an external academic institution
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Physikalisch-Technische Bundesanstalt
Petri Kärhä (Visiting researcher) & Janne Askola (Visiting researcher)
27 Jun 2019 → 28 Jun 2019Activity: Visiting an external institution types › Visiting an external academic institution