Research Output per year
Research Output per year
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Dive into the research topics where Petri Kärhä is active. These topic labels come from the works of this person. Together they form a unique fingerprint.
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Research Output
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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 Jan 2020, In : OPTICAL REVIEW.Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile -
Flat-field calibration method for hyperspectral frame cameras
Kokka, A., Pulli, T., Honkavaara, E., Markelin, L., Kärhä, P. & Ikonen, E., 6 Aug 2019, In : Metrologia. 8 p., 055001.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile -
General tool for estimating effects of unknown correlations on spectral integrals
Pulli, T., Vaskuri, A., Kärhä, P., Mäntynen, H. & Ikonen, E., 2019, p. 186-187.Research output: Contribution to conference › Abstract › Scientific
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Influence of smart lighting control on the lifetime of high power LED luminaires
Askola, J., Baumgartner, H., Pulli, T., Kärhä, P. & Ikonen, E., 1 Jan 2019, In : IOP Conference Series: Earth and Environmental Science. 352, 1, 012043.Research output: Contribution to journal › Conference article › Scientific › peer-review
Open AccessFile -
Optical Characterization of III-V Multijunction Solar Cells for Temperature-Independent Band Gap Features
Baumgartner, H., Oksanen, B., Kärhä, P. & Ikonen, E., Nov 2019, In : IEEE Journal of Photovoltaics. 9, 6, p. 1631-1636 6 p.Research output: Contribution to journal › Article › Scientific › peer-review
Open AccessFile
Projects
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Metro-PV: Metrology for Emerging PV applications
01/09/2020 → 31/08/2024
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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RevStdLED (EMPIR)
Kärhä, P., Askola, J. & Mantela, V.
01/09/2020 → 31/08/2024
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 → 31/05/2024
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 → 30/09/2021
Project: EU other competitive funding (ERA-NET, EURAMET, EUREKA, EU JU)
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MetEOC2: Metrology for earth observation and climate
01/01/2017 → 31/10/2017
Project: EU: Other research funding
Activities
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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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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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Tallinna Tehnikaulikool
Petri Kärhä (Visiting researcher)
29 Oct 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
Press / Media
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Researchers developed highly accurate method for measuring luminous efficacy of LEDs
Erkki Ikonen, Farshid Manoocheri, Petri Kärhä & Timo Dönsberg
17/09/2015 → 21/09/2015
6 items of Media coverage
Press/Media: Media appearance