Research Output

Demonstration of 50-Hz electrical active power measurement using a micromechanical magnetometer

Rimminen, H., Hällström, J., Immonen, P., Seppä, H., Manninen, A., Latonen, T., Kyynäräinen, J. & Kärkkäinen, A., 2012, Proceedings: Conference on Precision electromagnetic Measurements, CPEM 2012 2012. IEEE Institute of Electrical and Electronic Engineers, p. 232-233

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Demonstrator of Time Services based on European GNSS signals: The H2020 DEMETRA Project

Defraigne, P., Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Biserni, E., Leone, V., Zarroli, E., Sormani, D., Gandara, M., Hamoniaux, V., Varriale, E., Morante, Q. & 17 others, Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Cernigliaro, A., Fiasca, F., Perucca, A., Dhiri, V., Veiga, M. T., Suárez, T., Diaz, J., Mangiantini, M., Wallin, A. E., Galleani, L. & Hindley, D., 1 Jan 2017, Proceedings of the 48th Annual Precise Time and Time Interval Systems and Applications Meeting, PTTI 2017. p. 127-137 11 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

1 Citation (Scopus)

Design and performance of a fast divider for puncture testing

Hällström, J., Kazmi, S., Havunen, J. & Pykälä, M-L., 2017, Proceedings.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Design of a Metrology Grade Fibre Optical Current Sensor

Elg, A-P., Lindgren, M., Hedekvist, P. O., Ebenhag, S-C., Hällström, J., Istrate, D., Kiiveri, P., Niewczas, P. & Fusiek, G., 2017, 2017 ISH: 20th International Symposium on High Voltage Engineering. Díaz, R. R., Assaf, L. O., Silva, J. & Rizzotti, B. (eds.).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Design of a wideband HVDC reference divider

Hällström, J., Bergman, A., Dedeoǧlu, S., Elg, A., Houtzager, E., Lucas, W., Merev, A., Meisner, J., Sardi, A., Suomalainen, E. P. & Weber, C., 3 Oct 2012, 2012 Conference on Precision electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, p. 207-208 2 p. 6250874

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

10 Citations (Scopus)

Development and calibration of an HV Impulse Reference Divider

Cherbaucich, C., Gentili, M., Hällström, J., Havunen, J., Mazza, P., Orrea, A., Rizzi, G. & Sardi, A., 2017, 2017 ISH: 20th International Symposium on High Voltage Engineering.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Development of a quantum AC voltage standard based on externally shunted Josephson arrays

Nissilä, J., Ojasalo, K., Kemppainen, A., Manninen, A., Hassel, J., Helistö, P. & Seppä, H., 2004, 2004 Conference on Precision Electromagnetic Measurements Digest. IEEE Institute of Electrical and Electronic Engineers, p. 158-159

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Development of white LED illuminants for colorimetry and recommendation of white LED reference spectrum for photometry

Kokka, A., Poikonen, T., Blattner, P., Jost, S., Ferrero, A., Pulli, T., Ngo, M., Thorseth, A., Gerloff, T., Dekker, P., Stuker, F., Klej, A., Ludwig, K., Schneider, M., Reiners, T. & Ikonen, E., 28 Jun 2018, In : Metrologia. 55, 4, p. 526-534 9 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
2 Citations (Scopus)

Driving a Josephson Junction Array with a Mode-Locked Laser and a Photodiode

Nissilä, J., Fordell, T., Kieler, O. & Behr, R., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Effect of Coaxial Cables on Measurements Performed with Resistive Lightning Impulse Voltage Dividers

Havunen, J., Passon, S., Hällström, J. & Bergman, A., 19 Oct 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, 2 p. 8501140

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Effect of optical pumping on alkali-atom Doppler-limited spectra

Lindvall, T. & Tittonen, I., 1 Dec 2007, In : Journal of Modern Optics. 54, 18, p. 2779-2793

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)

EGNSS Based Robust Synchronization Service

Dierikx, E., Wallin, A., Merimaa, M., Bauernfeind, R., Kirkko-Jaakkola, M., Catalano, V., Aarmo, K. A. & Borio, D., 27 Oct 2017, 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings. IEEE Institute of Electrical and Electronic Engineers, p. 385-387 3 p. 8088899

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Electrical stability of a MEMS-based AC voltage reference

Kärkkäinen, A., Tisnek, N., Manninen, A., Pesonen, N., Oja, A. S. & Seppä, H., 2007, In : Sensors and Actuators A: Physical. 137, 1, p. 169-174

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Estimation of time parameters of tail chopped lightning impulses - Clarification of the standard IEC 60060-1/2010

Hall Barbosa, C. R., Hällström, J., Silva, M. T., Azevedo, L. C. & Faria, L. C., 12 Sep 2014, 29th Conference on Precision Electromagnetic Measurements (CPEM 2014). IEEE Institute of Electrical and Electronic Engineers, p. 778-779 2 p. 6898617

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

2 Citations (Scopus)

EURAMET #1172: Bilateral three-phase AC power and energy comparison at power frequency

Hällström, J., Suomalainen, E-P., Immonen, P. & Svensson, S., 2012, Espoo: Centre of Metrology and Accreditation. 18 p. (MIKES Publication; No. J2/2012).

Research output: Book/ReportReport

Open Access

Evaluation of Step Response of Transient Recorders for Lightning Impulse

Bergman, A., Elg, A-P. & Hällström, J., 2017, Proceedings.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Excitation of single quasiparticles in a small superconducting Al island connected to normal-metal leads by tunnel junctions

Maisi, V. F., Lotkhov, S. V., Kemppinen, A., Heimes, A., Muhonen, J. T. & Pekola, J. P., 2013, In : Physical Review Letters. 111, 14, 147001.

Research output: Contribution to journalArticleScientificpeer-review

30 Citations (Scopus)

Experience with Current Transformer Calibration System Based on Rogowski Coil

Suomalainen, E-P. & Hällström, J., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Experimental investigation of hybrid single-electron turnstiles with high charging energy

Kemppinen, A., Kafanow, S., Pashkin, Y. A., Tsai, J. S., Averin, D. V. & Pekola, J. P., 2009, In : Applied Physics Letters. 94, 17, 3 p.

Research output: Contribution to journalArticleScientificpeer-review

33 Citations (Scopus)

Experimental time dissemination services based on European GNSS signals: The H2020 DEMETRA project

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Cerabolini, P., Rotiroti, L., Biserni, E., Leone, V., Zarroli, E., Sormani, D., Defraigne, P., Ozdemir, N., Baire, Q. & 23 others, Gandara, M., Hamoniaux, V., Varriale, E., Morante, Q., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Beccari, M., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Dhiri, V., Veiga, M. T., Suárez, T., Diaz, J., Mangiantini, M., Wallin, A. E., Galleani, L. & Hindley, D., 23 May 2016, 2016 European Frequency and Time Forum, EFTF 2016. IEEE Institute of Electrical and Electronic Engineers, 7477820

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Fabrication and Studies of Silicide-Based Superconducting Nanowires

Lehtinen, J., Mykkänen, E., Kemppinen, A., Prunnila, M. & Manninen, A., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Fast Josephson arrays for voltage and impedance metrology

Hassel, J., Grönberg, L., Helistö, P., Seppä, H., Nissilä, J. & Kemppainen, A., 2004, 2004 Conference on Precision Electromagnetic Measurements Digest. IEEE Institute of Electrical and Electronic Engineers, p. 154-155

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Finnish national standards laboratories: 2003 annual report

Järvinen, J. (ed.), Heinonen, M. (ed.), Lassila, A. (ed.) & Rajala, R. (ed.), 2004, Helsinki: Centre of Metrology and Accreditation. 62 p. (MIKES Publication; No. J1/2004).

Research output: Book/ReportReport

Open Access
Open Access
Open Access

Fisheye camera method for spatial non-uniformity corrections in luminous flux measurements with integrating spheres

Kokka, A., Pulli, T., Poikonen, T., Askola, J. & Ikonen, E., 24 Jul 2017, In : Metrologia. 54, 4, p. 577-583 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
2 Citations (Scopus)

Frequency comb-linked mid-infrared continuous-wave optical parametric oscillator

Peltola, J., Vainio, M., Fordell, T., Hieta, T., Merimaa, M. & Halonen, L., 21 Jul 2014, Advanced Photonics. Optical Society of America OSA, JM5A.21

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Frequency-comb-referenced mid-infrared source for high-precision spectroscopy

Peltola, J., Vainio, M., Fordell, T., Hieta, T., Merimaa, M. & Halonen, L., 29 Dec 2014, In : Optics Express. 22, 26, p. 32429-32439 11 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
19 Citations (Scopus)

Frequency-comb-referenced tunable diode laser spectroscopy and laser stabilization applied to laser cooling

Fordell, T., Wallin, A. E., Lindvall, T., Vainio, M. & Merimaa, M., 2014, In : Applied Optics. 53, 31, p. 7476-7482

Research output: Contribution to journalArticleScientificpeer-review

Frequency Comparison of 171 +Ion Optical Clocks at PTB and NPL via GPS PPP

Leute, J., Huntemann, N., Lipphardt, B., Tamm, C., Nisbet-Jones, P. B. R., King, S. A., Godun, R. M., Jones, J. M., Margolis, H. S., Whibberley, P. B., Wallin, A., Merimaa, M., Gill, P. & Peik, E., 1 Jul 2016, In : IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control. 63, 7, p. 981-985 5 p., 7398135.

Research output: Contribution to journalArticleScientificpeer-review

16 Citations (Scopus)

Future photometry based on solid-state lighting products

Poikonen, T., Pulli, T., Kokka, A., Askola, J., Dönsberg, T., Smid, M., Kliment, P., Pons, A., Ferrero, A., Kübarsepp, T., Gál, P., Gerloff, T., Sperling, A., Källberg, S., Dekker, P., Thorseth, A., Jost, S., Klej, A., Brida, G., Reiners, T. & 3 others, Blattner, P., Ludwig, K. & Schneider, M., 15 Jul 2019, Proceedings of the 29th CIE SESSION Washington D.C., USA, June 14 – 22, 2019. CIE International Commission on Illumination, p. 719 724 p. (CIE Publication; No. CIE x046:2019).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Open Access

Hajautetut vikasietoiset kelloverkot

Translated title of the contribution: Distributed fault-tolerant clock networksWallin, A., Lindvall, T. & Hanhijärvi, K., 2018, 12 p. (Maanpuolustuksen tieteellinen neuvottelukunta. Raporttisarja B).

Research output: Book/ReportReport

Open Access

Hand-grip strength cut points to screen older persons at risk for mobility limitation

Sallinen, J., Stenholm, S., Rantanen, T., Heliövaara, M., Sainio, P. & Koskinen, S., 2010, In : Journal of the American Geriatrics Society. 58, 9, p. 1721-1726

Research output: Contribution to journalArticleScientificpeer-review

139 Citations (Scopus)

Harmonic Power Standard of VTT MIKES

Lehtonen, T., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. IEEE Institute of Electrical and Electronic Engineers, 2 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Harmonic Power Standard of VTT MIKES

Lehtonen, T. A., 1 Jun 2019, In : IEEE Transactions on Instrumentation and Measurement. 68, 6, p. 2047-2052 6 p., 8556073.

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

High-accuracy comparison of lightning and switching impulse calibrators

Wakimoto, T., Hällström, J. K., Chekurov, Y., Ishii, M., Lucas, W., Piiroinen, J. & Shimizu, H., 2007, In : IEEE Transactions on Instrumentation and Measurement. 56, 2, p. 619-623

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

High AC current calibration system based on Rogowski coil

Havunen, J., Suomalainen, E-P. & Hällström, J., 2015, 2015 ISH: 19th International Symposium on High Voltage Engineering. 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

High-Speed Pulsation of a Cryogenically Operable Bipolar Photodiode Module for the Josephson Arbitrary Waveform Synthesizer

Karlsen, B., Bardalen, E., Nissila, J., Fordell, T., Kieler, O., Palafox, L., Behr, R., Malmbekk, H., Akram, M. N. & Ohlckers, P., Aug 2020, 2020 Conference on Precision Electromagnetic Measurements, CPEM 2020. IEEE Institute of Electrical and Electronic Engineers, p. 1-2

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

High Voltage Topologies for Very Fast Transient Measurements

Elg, A. P., Passon, S., Meisner, J. & Hällström, J., 1 Jan 2020, Proceedings of the 21st International Symposium on High Voltage Engineering: ISH 2019. Németh, B. (ed.). Springer, Vol. 1. p. 1316-1327 12 p. (Lecture Notes in Electrical Engineering, Vol. 598 LNEE).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Improved systematic and random errors for long-distance time-transfer using PTP White Rabbit

Wallin, A., Rizzi, M., Calvés, G. M., Fordell, T. & Näränen, J., 2018.

Research output: Contribution to conferenceConference AbstractScientificpeer-review

Improvements in resistance calibration service in MIKES

Satrapinski, A., Rautiainen, A., Rajala, R. & Helistö, P., 2001, URSI XXVI Convention on Radio Science and Second Finnish Wireless Communications Workshop: Digest of technical papers. Tampere: Tampere University of Technology

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Influence of Coaxial Cable on Response of High-Voltage Resistive Divider

Bergman, A., Nordlund, M., Elg, A-P., Havunen, J., Hällström, J. & Meisner, J., 2017, Proceedings.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Initial results from the MIKES-Metsähovi time and frequency link

Wallin, A., Fordell, T., Calvés Molera, G., Mujunen, A., Myyry, J. & Näränen, J., 2017.

Research output: Contribution to conferenceOther conference contributionScientific

Initial Results from the MIKES-Metsahovi Time and Frequency Link for the VGOS Radio Telescope

Molera Calvés, G., Wallin, A., Näränen, J. & Fordell, T., Aug 2019, International VLBI Service for Geodesy and Astrometry 2018 General Meeting Proceedings. Armstrong, K. L., Baver, K. D. & Behrend, D. (eds.). p. 50-53 (NASA Conference Publication (CP); No. NASA/CP–2019-219039).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientific

Interaction-time-averaged optical pumping in alkali-metal-atom Doppler spectroscopy

Lindvall, T. & Tittonen, I., 9 Sep 2009, In : Physical Review A - Atomic, Molecular, and Optical Physics. 80, 3, 032505.

Research output: Contribution to journalArticleScientificpeer-review

13 Citations (Scopus)

Intercomparison of reference measuring systems for lightning impulses between three National Metrology Institutes

Meisner, J., Elg, A. P., Hallstrom, J., Passon, S., Havunen, J., Bergman, A. & Nordlund, M., 14 Feb 2019, 2018 IEEE International Conference on High Voltage Engineering and Application: ICHVE 2018. IEEE Institute of Electrical and Electronic Engineers, 8642002. (International Conference on High Voltage Engineering and Application).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

International comparison of current transformer calibration systems up to 10 kA at 50 Hz frequency

Draxler, K., Styblíková, R., Rietveld, G., den, B. H. V., Schnaitt, M., Waldmann, W., Dimitrov, E., Cincar-Vujovic, T., Pączek, B., Sadkowski, G., Crotti, G., Martín, R., Garnacho, F., Blanc, I., Kämpfer, R., Mester, C., Wheaton, A., Mohns, E., Bergman, A., Hammarquist, M. & 3 others, Çayci, H., Hällström, J. & Suomalainen, E-P., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on. IEEE Institute of Electrical and Electronic Engineers, p. 1 - 2

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

International timescales with optical clocks

Margolis, H. S., Benkler, E., Calonico, D., Denker, H., Delva, P., Godun, R. M., Lisdat, C., Achkar, J., Bize, S., Gersl, J., Gill, P., Lindvall, T., Merimaa, M., Pizzocaro, M., Piester, D., Riedel, F., Cesia, I., Shemar, S. L., Sterr, S. L., Timmen, L. & 4 others, Voigt, C., Vogt, S., Weyers, S. & Whibberley, P. B., 2015, Book of abstracts. IEEE Institute of Electrical and Electronic Engineers

Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific

International timescales with optical clocks (ITOC)

Margolis, H. S., Godun, R. M., Gill, P., Johnson, L. A. M., Shemar, S. L., Whibberley, P. B., Denker, H., Timmen, L., Voigt, C., Calonico, D., Lorini, L., Pizzocaro, M., Falke, S., Piester, D., Lisdat, D., Sterr, U., Weyers, S., Delva, P., Bize, S., Achkar, J. & 3 others, Gersl, J., Lindvall, T. & Merimaa, M., 2013, 2013 Joint European Frequency and Time Forum & International Frequency Control Symposium (EFTF/IFC) . IEEE Institute of Electrical and Electronic Engineers, p. 908-911

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

19 Citations (Scopus)

Investigating linearity of a high voltage capacitance bridge

Suomalainen, E. P. & Hällström, J., 12 Sep 2014, 29th Conference on Precision Electromagnetic Measurements (CPEM 2014). IEEE Institute of Electrical and Electronic Engineers, p. 620-621 2 p. 6898538

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review