Research Output 1984 2019

Conference article in proceedings

Experience with Current Transformer Calibration System Based on Rogowski Coil

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

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

Electric instrument transformers
transformers
coils
Calibration
Ferromagnetic materials

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. Institute of Electrical and Electronic Engineers IEEE, 7477820

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

Traffic control
Finance
Telecommunication
Calibration
time measurement

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. Institute of Electrical and Electronic Engineers IEEE, 2 p.

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

nanowires
fabrication
nanofabrication
crossovers
slip

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

Optical parametric oscillators
parametric amplifiers
continuous radiation
Infrared radiation
1 Citation (Scopus)

Harmonic Power Standard of VTT MIKES

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

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

Voltage dividers
Function generators
Voltage measurement
Transconductance
Electric current measurement

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

Calibration
Electric instrument transformers
Busbars
Voltmeters
Electric current measurement

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 for the VGOS radio telescope

Molera Calvés, G., Näränen, J., Fordell, T. & Wallin, A., 2018, (Accepted/In press) IVS Publications: General Meeting Proceedings.

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

radio telescopes
clocks
hydrogen masers
time signals
very long base interferometry

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. Institute of Electrical and Electronic Engineers IEEE, 8642002. (ICHVE 2018 - 2018 IEEE International Conference on High Voltage Engineering and Application).

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

Lightning
Electric potential
Uncertainty
17 Citations (Scopus)

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) . Institute of Electrical and Electronic Engineers IEEE, p. 908-911

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

clocks
International System of Units
relativistic effects
temporal resolution
gravitation

Long term stability of two 1000 kV voltage dividers

Elg, A., Bergman, A. & Hällström, J., 2015, Proceedings of the 19th International Symposium on High Voltage Engineering, Pilsen, Czech Republic, August, 23 – 28, 2015. University of West Bohemia, 5 p.

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

Voltage dividers
Electric potential
Calibration
Resistors
Painting

Measurement of the Internal Inductance of Impulse Voltage Generators and the Limits of LI Front Times

Larzelere, W., Hällström, J., Elg, A-P., Bergman, A., Klüss, J., Li, Y. & Zhou, L., 2017, Proceedings. 5 p.

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

Open Access
Inductance
Electric potential
Networks (circuits)
Impulse testing
Capacitance

Methods for characterization and minimization of microwave background in cryogenic environment

Lehtinen, J., Mykkänen, E., Kemppinen, A. & Manninen, A., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on. Institute of Electrical and Electronic Engineers IEEE, p. 1-2

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

cryogenics
microwaves
optimization
photons
cryostats
1 Citation (Scopus)

Methods for decreasing uncertainties in LED photometry

Dönsberg, T., Pulli, T., Sildoja, M., Poikonen, T., Baumgartner, H., Manoocheri, F., Kärhä, P. & Ikonen, E., 2015, CIM2015: 17th International Congress of Metrology. Larquier, B. (ed.). EDP Sciences, 6 p. 11001

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

Open Access
luminaires
photometry
light emitting diodes
illuminance
illuminating

Methods for Electrical Cooling and Thermometry of a Suspended Silicon Chip

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

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

coolers
tunnel junctions
conductive heat transfer
temperature measurement
heat flux
1 Citation (Scopus)

Metrology for very fast current transients

Passon, S., Havunen, J., Meisner, J. & Kurrat, M., 13 Feb 2019, 2018 IEEE International Conference on High Voltage Engineering and Application: ICHVE 2018. Institute of Electrical and Electronic Engineers IEEE, 4 p. 8641787. (ICHVE 2018 - 2018 IEEE International Conference on High Voltage Engineering and Application).

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

Calibration
Cables
Sensors
Electric potential
Electric sparks
4 Citations (Scopus)

Optical voltage sensor for MV networks

Fusiek, G., Nelson, J., Niewczas, P., Havunen, J., Suomalainen, E. P. & Hallstrom, J., 21 Dec 2017, IEEE SENSORS 2017 - Conference Proceedings. Institute of Electrical and Electronic Engineers IEEE, Vol. 2017-December. p. 1-3 3 p.

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

Piezoelectric transducers
Voltage measurement
Sensors
Electric potential
Fiber Bragg gratings

Precision Calibration System for Partial Discharge Calibrators

Havunen, J. & Hällström, J., 8 Aug 2019, Proceedings of the 26th Nordic Insulation Symposium, NORD-IS 19. p. 6-9 (Proceedings of the Nordic Insulation Symposium, Vol. 26).

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

Open Access
Partial discharges
Calibration
Uncertainty

Precision loss measurement of reactive compensation components by sampling voltage and current

Mohns, E., Hällström, J., Suomalainen, E-P., Badura, H. & Fricke, S., 11 Aug 2016, Precision Electromagnetic Measurements (CPEM 2016), 2016 Conference on . Institute of Electrical and Electronic Engineers IEEE, p. 1-3

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

Sampling
Electric potential
Capacitors
Compensation and Redress
Industry

Pre-stabilization of a distributed feedback diode laser for locking to a high-finesse cavity

Fordell, T., Wallin, A. E., Lindvall, T. & Merimaa, M., 10 Aug 2016, CPEM 2016 - Conference on Precision Electromagnetic Measurements, Conference Digest. Institute of Electrical and Electronic Engineers IEEE, 7540698

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

locking
Semiconductor lasers
Stabilization
stabilization
semiconductor lasers

Radio-frequency transport of single electrons in superconductor-normal-metal tunnel junctions and the quantum metrological triangle

Kemppinen, A., Maisi, V. F., Saira, O-P., Kafanov, S., Lotkhov, S. V., Pashkin, Y. A., Aref, T., Meschke, M., Möttönen, M., Hahtela, O., Hassel, J., Luomahaara, J., Mykkänen, E., Koivula, H., Averin, D. V., Seppä, H., Tsai, J. S., Zorin, A. B., Manninen, A. & Pekola, J. P., 2011, Proceedings: XXXth URSI General Assembly and Scientific Symposium, URSIGASS 2011. Institute of Electrical and Electronic Engineers IEEE, 6050291

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

tunnel junctions
triangles
radio frequencies
insulators
metals

Receiver-level robustness concepts for EGNSS timing services

Kirkko-Jaakkola, M., Thombre, S., Honkala, S., Söderholm, S., Kaasalainen, S., Kuusniemi, H., Zelle, H., Veerman, H., Wallin, A., Aarmo, K. A. & Boyero, J. P., 2017, 30th International Technical Meeting of the Satellite Division of the Institute of Navigation: ION GNSS 2017. Institute of Navigation ION, Vol. 5. p. 3353-3367 15 p.

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

Crystal oscillators
Critical infrastructures
Redundancy
Satellites
Testing

Results of an International Comparison of Instrument Current Transformers up to 10 kA at 50 Hz Frequency

Draxler, K., Styblíková, R., Hlavacek, J., Rietveld, G., van den Brom, H. E., Schnaitt, M., Waldmann, W., Dimitrov, E., Cincar-Vujovic, T., Paczek, B., Sadkowski, G., Crotti, G., Martin, R., Garnacho, F., Blanc, I., Kämpfer, R., Mester, C., Wheaton, A., Mohns, E., Bergman, A. & 4 others, Hammarquist, M., Çayci, H., Hällström, J. & Suomalainen, E-P., 2018, CPEM 2018 - Conference on Precision Electromagnetic Measurements. Institute of Electrical and Electronic Engineers IEEE, 2 p.

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

transformers
revenue
electric power
metrology
alternating current

Rogowski coil with reduced immunity to conductor location and stray magnetic fields

Hällström, J., Ayhan, B., Suomalainen, E-P. & Valero, A., 2017, Proceedings.

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

4 Citations (Scopus)

Stable arbitrary waveform generator as a transfer standard for ADC calibration

Nissila, J., Sira, M., Lee, J., Ozturk, T., Arifovic, M., Diaz De Aguilar, J., Lapuh, R. & Behr, R., 10 Aug 2016, CPEM 2016 - Conference on Precision Electromagnetic Measurements, Conference Digest. Institute of Electrical and Electronic Engineers IEEE, 7540454

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

analog to digital converters
Digital to analog conversion
waveforms
generators
sampling
2 Citations (Scopus)

The EMRP project metrology for energy harvesting

Melcher, J., Cain, M., Bounouh, A., Cuenat, A., Jacquot, A., Manninen, A., Heinonen, M., Schumacher, B., Edler, F., Rees, J., Jaegle, M., Zucca, M., Klapetek, P., Lapuh, R. & Funck, T., 2010, 2010 Conference on Precision Electromagnetic Measurements, CPEM 2010. Institute of Electrical and Electronic Engineers IEEE, p. 253-254 2 p. 5545035

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

Energy harvesting
research projects
metrology
platforms
International cooperation
4 Citations (Scopus)

The European project DEMETRA: Demonstrating time dissemination services

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Abadessa, A., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K. & 23 others, Olbrysz, P., Kowalski, J., Cerabolini, P., Rotiroti, L., Biserni, E., Zarroli, E., Leone, V., Veiga, M. T., Suárez, T., Diaz, J., Defraigne, P., Ozdemir, N., Blaire, Q., Gandara, M., Hamoniaux, V., Varriale, E., Morante, Q., Dhiri, V., Giulianini, E., Mangiantini, M., Wallin, A. E., Galleani, L. & Hindley, D., 1 Jan 2016, Proceedings of the 47th Annual Precise Time and Time Interval Systems and Applications Meeting. Institute of Navigation ION, p. 174-178 5 p.

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

Traffic control
Finance
Telecommunication
Navigation
Satellites
1 Citation (Scopus)

The European project DEMETRA, timing services based on European GNSS: First experimental results

Tavella, P., Sesia, I., Cerretto, G., Signorile, G., Calonico, D., Costa, R., Clivati, C., Cantoni, E., De Stefano, C., Frittelli, M., Formichella, V., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Cerabolini, P., Rotiroti, L., Biserni, E., Leone, V., Zarroli, E. & 22 others, Sormani, D., Dhiri, V., Defraigne, P., Ozdemir, N., Baire, Q., Veiga, M. T., Suarez, T., Diaz, J., Gandara, M., Hamoniaux, V., Mangiantini, M., Varriale, E., Morante, Q., Wallin, A. E., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Galleani, L. & Hindley, D., 21 Sep 2016, 3rd IEEE International Workshop on Metrology for Aerospace, MetroAeroSpace 2016 - Proceedings. Institute of Electrical and Electronic Engineers IEEE, p. 585-590 6 p. 7573281

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

satellite navigation systems
Navigation
time measurement
Satellites
Stamping

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

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., Defraigne, P., Baire, Q., Gandara, M., Hamoniaux, V., Varriale, E. & 21 others, Morante, Q., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Gliwka, K., Cernigliaro, A., Fiasca, F., Perucca, A., Facca, M., Dhiri, V., Veiga, M. T., Suarez, T., Diaz, J., Mangiantini, M., Wallin, A., Galleani, L., Whibberly, P. & Hindley, D., 27 Oct 2017, Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS). Institute of Electrical and Electronic Engineers IEEE, p. 475-476 2 p. 8088930

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

satellite navigation systems
Signal systems
Navigation
Satellites
European Union
5 Citations (Scopus)

Time dissemination services: The experimental results of the European 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., Widomski, T., Kaczmarek, J., Uzycki, J., Borgulski, K., Olbrysz, P., Kowalski, J., Cerabolini, P., Biserni, E., Leone, V. & 21 others, Zarroli, E., Sormani, D., Cernigliaro, A., Fiasca, F., Perucca, A., Mantero, S., Defraigne, P., Ozdemir, N., Baire, Q., Dhiri, V., Veiga, M. T., Suarez, T., Diaz, J., Gandara, M., Hamoniaux, V., Mangiantini, M., Wallin, A. E., Varriale, E., Morante, Q., Galleani, L. & al., E., 16 Aug 2016, 2016 IEEE International Frequency Control Symposium, IFCS 2016 - Proceedings. Institute of Electrical and Electronic Engineers IEEE, 7563585

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

Traffic control
Finance
Standardization
Calibration
experimentation

Using Deconvolution for Correction of Non-Ideal Step Response of Lightning Impulse Digitizers and Measurement Systems

Havunen, J., Hällström, J., Bergman, A. & Bergman, A. E., 2017, Proceedings.

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

Conference Poster

Broadband, unpolarized repumping and clearout light sources for alkaline-earth-metal single-ion clocks

Lindvall, T., Fordell, T., Dubé, P., Madej, A. A., Wallin, A. E. & Merimaa, M., 2015.

Research output: Contribution to conferenceConference PosterScientific

Recent progress on the MIKES 88Sr+ single-ion optical clock

Lindvall, T., Fordell, T., Wallin, A. E. & Merimaa, M., 2015.

Research output: Contribution to conferenceConference PosterScientific

Dissertation

Andreev tunneling and quasiparticle excitations in mesoscopic normal metal - superconductor structures: Dissertation

Maisi, V. F., 2014, Espoo: Centre of Metrology and Accreditation. 239 p.

Research output: ThesisDissertationCollection of Articles

Open Access
theses
metals
excitation
electrons
tunnels
Other conference contribution

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

Tarkka aikasynkronointi ja aikalinkit kriittisessä infrastruktuurissa

Wallin, A. E., 2017.

Research output: Contribution to conferenceOther conference contributionProfessional

Report

Characterization of the linearity of a 1200 kV HVDC divider

Hällström, J., 2013, Espoo: Centre of Metrology and Accreditation. 16 p. (MIKES Publication; No. J2/2013).

Research output: Book/ReportReport

Open Access
dividers
linearity
high voltages
electric potential
resistors

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
alternating current
Finland
Sweden
energy

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

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
rabbits

Tarkka aikasynkronointi ja aikalinkit maanpuolustuksessa: Tiivistelmäraportti

Merimaa, M. & Wallin, A., 2015, Puolustusministeriö. 14 p. (MATINEn raporttisarja B; No. 2500M-0034, Vol. 2015).

Research output: Book/ReportReport

Open Access
Review Article
3 Citations (Scopus)

Metrology in electricity and magnetism: EURAMET activities today and tomorrow

Piquemal, F., Jeckelmann, B., Callegaro, L., Hällström, J., Janssen, T. J. B. M., Melcher, J., Rietveld, G., Siegner, U., Wright, P. & Zeier, M., 4 Aug 2017, In : Metrologia. 54, 5, p. R1-R24

Research output: Contribution to journalReview ArticleScientificpeer-review

Open Access
Magnetism
Electricity
Metric system
Nanotechnology
Graphene