Metrologian julkaisuja

Nature Highlight: uusi virtalähde kvanttimetrologiakolmioon

Antti Kemppinen, Tunnel junction devices for quantum metrology, J3/2009

Risto Rajala, Yleismittarin vertailumittaus, J9/2006

Risto Rajala, Yleismittarin vertailumittaus, Loppuraportti, J8/2004

T. Mansten , Vaihtojännitteen vertailumittaus, MIKES Julkaisu J04/1997

P. Immonen, Sähkötehon vertailumittaus, MIKES Julkaisu J06/1997

M. Aro, J. Hällström, S. Nevalainen, Suurjännitemetrologian tarvekartoitus ja kehittämissuunnitelma, MIKES Julkaisu J09/1997

S4 - Tasajännitteen vertailumittaus 1991, MIKES Julkaisu J02/1995

Antti Manninen, Mittayksikköjärjestelmän fysikaaliset perusteet - sähkösuureet

B. Jeanneret, F. Overney, A. Rufenacht, J. Nissilä, Strong attenuation of the transients' effect in square waves synthesized with a programmable Josephson voltage standard, IEEE Trans. Instrum. Meas. 59 (2010) 1894 - 1899

J. Lee, J. Schurr, J. Nissilä, L. Palafox, R. Behr, The Josephson two-terminal-pair impedance bridge, Metrologia 47 (2010) 453 - 459

J.P. Pekola, V.F. Maisi, S. Kafanov, N. Chekurov, A. Kemppinen, Yu.A. Pashkin, O.-P. Saira, M. Möttönen, J.S. Tsai, Environment-assisted tunneling as an origin of the Dynes density of states, Phys. Rev. Lett. 105 (2010) 026803

A. Kemppinen, S. Kafanov, Yu.A. Pashkin, J.S. Tsai, D.V. Averin, J.P. Pekola, Experimental investigation of hybrid single-electron turnstiles with high charging energy, Appl. Phys. Lett. 94 (2009) 172108

S.V. Lotkhov, A. Kemppinen, S. Kafanov, J.P. Pekola, A.B. Zorin, Pumping properties of the hybrid single-electron transistor in dissipative environment, Appl. Phys. Lett. 95 (2009) 112507

A. Kemppinen, M. Meschke, M. Möttönen, D.V. Averin, J.P. Pekola, Quantized current of a hybrid single-electron transistor with superconducting leads and a normal-metal island, Eur. Phys. J. Special Topics 172 (2009) 311 - 321

E.-P. Suomalainen, J.K. Hällström, Onsite calibration of a current transformer using a Rogowski coil, IEEE Trans. Instrum. Meas. 58 (2009) 1054 - 1058

O.M. Hahtela, A.F. Satrapinski, P. Sievilä, N. Chekurov, Atomic layer deposited alumina (Al2O3) coating on thin film cryoresistors, IEEE Trans. Instrum. Meas. 58 (2009) 1183 - 1187

A.F. Satrapinski, A. M. Savin, S. Novikov, O. Hahtela, Ni-Cr based thin film cryo resistors, IEEE Trans. Instrum. Meas. 58 (2009) 1206 - 1210

V.F. Maisi, Yu.A. Pashkin, S. Kafanov, J.-S. Tsai, J.P. Pekola, Parallel pumping of electrons, New J. Phys. 11 (2009) 113057

S. Kafanov, A. Kemppinen, Yu.A. Pashkin, M. Meschke, J.S. Tsai, J.P. Pekola, Single-electronic radio-frequency refrigerator, Phys. Rev. Lett. 103 (2009) 120801

A. Kemppinen, A.J. Manninen, M. Möttönen, J.J. Vartiainen, J.T. Peltonen, J.P. Pekola, Suppression of the critical current of a balanced superconducting quantum interference device, Appl. Phys. Lett. 92 (2008) 052110

P.L. Lewin, T.N. Tran, D.J. Swaffield, J.K. Hällström, Zero phase filtering for lightning impulse evaluation: a K-factor filter for the revision of IEC60060-1 and 2, IEEE Trans. Power Delivery 23 (2008) 3 - 12

A.F. Satrapinski, A.M. Savin, S. Novikov, O. Hahtela, Experimental study of Evanohm thin film resistors at subkelvin temperatures, Meas. Sci. Technol. 19 (2008) 055102

J.J. Vartiainen, M. Möttönen, J.P. Pekola, A. Kemppinen, Nanoampere pumping of Cooper pairs, Appl. Phys. Lett. 90 (2007) 082102

J. Hassel, L. Grönberg, P. Helistö, H. Seppä, J. Nissilä, A. Manninen, Millimeter wave engineering of distributed Josephson junction arrays, IEEE Trans. Appl. Supercond. 17 (2007) 930 - 933

J. Hällström, M. Aro, A. Bergman, V. Bovier Lapierre, F. Garnacho, J. I. Juvik, V. Kiseliev, Z. Lian Hong, W. Lucas, Y. Li, M. L. Pykälä, J. Rungis, K. Schon, V.H. Truong, Worldwide comparison of lightning impulse voltage measuring systems at the 400-kV level, IEEE Trans. Instrum. Meas. 56 (2007) 388 – 391

T. Wakimoto, J. Hällström, Y. Chekurov, M. Ishii, W. Lucas, J. Piiroinen, H. Shimizu, High-accuracy comparison of lightning and switching impulse calibrators, IEEE Trans. Instrum. Meas. 56 (2007) 619 – 623

A. Kärkkäinen, N. Tisnek, A. Manninen, N. Pesonen, A. Oja, H. Seppä, Electrical stability of a MEMS-based AC voltage reference, Sensors and Actuators A 137 (2007) 169

A. Manninen, A. Kärkkäinen, N. Pesonen, A. Oja, H. Seppä, Applications des MEMS à la métrologie électrique, Techniques de l'Ingénieur, traité Mesures et Controle, juin 2007. R 1002, 12 pages (in French); English version arXiv:0707.0637v1 (2007)

T. Wakimoto, H. Shimizu, M. Ishii, J. Hällström, W. Lucas, Construction and performance evaluation of calibration system for low voltage impulse (in Japanese), Transactions of the Institute of Electrical Engineers of Japan B 127 (2007) 261 - 266

G. Marullo-Reedtz, R. Cerri, W. Waldmann, J. Streit, P.Immonen, I. Blanc, F. Raso, T. Funck, B. Schumacher, E.F. Dierikx, M. Nunes, P. Vrabcek, D. Rudohradský, O. Gunnarsson, K.-E. Rydler, B. Jeanneret, B. Jeckelmann, T. Pulfer, S.S. Turhan, O. Yilmaz, J.M. Williams, H. Slinde, K. Lind, J. Nicolas, M. Lindic, E. Flouda, G. Erdos, Comparison EUROMET.EM-K8 of DC voltage ratio: Results, IEEE Trans. Instrum. Meas. 54 (2005) 576-579

A. Kärkkäinen, N. Pesonen, M. Suhonen, A.S. Oja, A. Manninen, N. Tisnek, H. Seppä, MEMS-based AC voltage reference, IEEE Trans. Instrum. Meas. 54 (2005) 595-599

Y. Li, J. Hällström, W. Lucas, Comparison of two impulse calibrators with a high resolution digitizer, IEEE Trans. Instrum. Meas. 54 (2005) 608 - 611

J. Hassel, P. Helistö, L. Grönberg, H. Seppä, J. Nissilä, A. Kemppinen, Stimulated power generation in ES-SIS junction arrays, IEEE Trans. Instrum. Meas. 54 (2005) 632-635

J. Nissilä, A. Kemppinen, K. Ojasalo, J. Hassel, A. Manninen, P. Helistö, H. Seppä, Realization of a square-wave voltage with externally-shunted SIS Josephson junction arrays for a quantum AC voltage standard, IEEE Trans. Instrum. Meas. 54 (2005) 636-640

J. Hällström, Y. Chekurov, M. Aro, A calculable impulse voltage calibrator for calibration of impulse digitizers, IEEE Trans. Instrum. Meas. 52 (2003) 400 - 403

P. Helistö, H. Seppä, Analysis of international comparisons with the minimum variance method, IEEE Trans. Instrum. Meas. 52 (2003) 495 - 499

R. Behr, J. Kohlmann, J.-T.B.M. Janssen, P. Kleinschmidt, J.M. Williams, S. Djordjevic, J.-P. Lo-Hive, F. Piquemal, P.-O. Hetland, D. Reymann, G. Eklund, C. Hof, B. Jeanneret, O. Chevtchenko, E. Houtzager, H. van den Brom, A. Sosso, D. Andreone, J. Nissilä, P. Helistö, Analysis of different measurement setups for a programmable Josephson voltage standard, IEEE Trans. Instrum. Meas. 52 (2003) 524 - 528

P. Helistö, J. Nissilä, K. Ojasalo, J.S. Penttilä, H. Seppä, AC voltage standard based on a programmable SIS array, IEEE Trans. Instrum. Meas. 52 (2003) 533 - 537

A. Satrapinski, Possible application of a cryogenic current comparator bridge for the measurement of capacitance standards, MAPAN - J. Metr. Soc. of India 18 (2003) 133 - 136

A. Satrapinski, Y.P. Semenov, Application of combined standard of resistance and capacitance for quadrature bridge, MAPAN - J. Metrol. Soc. of India 18 (2003) 133 - 136

P. Helistö, I. Tittonen, Experiments with coherent gamma fields: gamma echo and related phenomena, Hyperfine Interactions 135 (2001) 167 - 190

A. Satrapinski, H. Seppä, B. Schumacher, P. Warnecke, F. Delahaye, W. Poirier, F. Piquemal, Comparison of four QHR systems within one month using a temperature and pressure stabilized 100-Ohm, IEEE Trans. Instrum. Meas. 50 (2001) 238 - 241

B. Schumacher, P. Warnecke, W. Poirier, I. Delgado, Z. Msimang, G. Boella, P.O. Hetland, R.E. Elmquist, J. Williams, D. Inglis, B. Jeckelmann, O. Gunnarsson, A. Satrapinsky, Transport behavior of commercially available 100-Ohm standard resistors, IEEE Trans. Instrum. Meas. 50 (2001) 242 - 244

P. Helistö, H. Seppä, Measurement uncertainty in the presence of low frequency noise, IEEE Trans. Instrum. Meas. 50 (2001) 453 - 456

P. Helistö, H. Seppä, Minimum variance method for treatment of measurements with low-frequency noise, Metrologia 38 (2001) 489 - 496

J. Rungis, M. Aro, J. Hällström et al., Use of low voltage calibrators in impulse voltage measurements, Electra 189 (2000) 83 - 109

H. Seppä, A. Satrapinski, M. Kiviranta, V. Virkki, Thin-film cryogenic current comparator, IEEE Trans. Instrum. Meas. 48 (1999) 365 - 369

J. Hällström, M. Aro, A. Bergman, V. Jaroslawski, International intercomparison of direct and switching impulse voltage measurement systems with zener-diode based reference DWINA, Electra 179 (1998) 24 - 37

J. Hällström, M. Aro, A. Bergman, G. Rizzi, V. Yaroslavskyi, The international comparison of the measuring system of direct voltage and switching impulse with standard DWINA-100 (in Russian), Legal and Applied Metrology, No. 1 (1998) 14 - 23

H. Seppä, A. Satrapinski, AC resistance bridge based on the cryogenic current comparator, IEEE Trans. Instrum. Meas. 46 (1997) 463 - 466

H. Seppä, A. Satrapinski, T. Varpula, J-M. Saari, Frequency dependence of 100 Ohm standard resistors measured with a CCC-based AC resistance bridge, IEEE Trans. Instrum. Meas. 44 (1995) 276 - 280

H. Seppä, M. Kiviranta, A. Satrapinski, L. Grönberg, J. Salmi, I. Suni, A coupled DC SQUID with low 1/f noise, IEEE Trans. Appl. Superc. 57 (1993) 406 - 409

A. Kemppinen, S. Kafanov, V.F. Maisi, Yu.A. Pashkin, S.V. Lotkhov, N. Chekurov, O.-P. Saira, M. Möttönen, J. Hassel, J.S. Tsai, D.V. Averin, A.B. Zorin, A.J. Manninen, J.P. Pekola, Development of the SINIS turnstile for the quantum metrological triangle, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 125 - 126

J. Kaasalainen, A. Manninen, DC voltage standard based on square wave excitation of a micromechanical capacitive sensor, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 209 - 210

R. Lapuh, P. Clarkson, U. Pogliano, P.S. Wright, J. Hällström, Comparison of asynchronous sampling correction algorithms for power quality measurements under realistic conditions, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 227 - 228

V. Tarasso, V. N. Zachovalová, M. Garcocz, K. Lind, T. Mansten, U. Pogliano, G. Rietveld, B. Voljč, A survey of current shunts for AC power measurements, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 231 - 232

J. Melcher, M. Cain, A. Bounouh, A. Cuenat, A. Jacquot, A. Manninen, M. Heinonen, B. Schumacher, F. Edler, J. Rees, M. Jaegle, M. Zucca, P. Klapetek, R. Lapuh, T. Funck, The EMRP project metrology for energy harvesting, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 253 - 254

S. Novikov, A. Satrapinski, N. Lebedeva, Characterization of epitaxial graphene structures, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 293 - 294

G. Eklund, A. Satrapinski, E.-P. Suomalainen, Yu. Semenov, Comparison of different methods of inductance realisation, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 382 - 383

Yu. Semenov, A. Satrapinski, Evaluation of 100 mH inductance by series resonance method in VNIIM and in MIKES, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 386 - 387

A. Pokatilov, A. Satrapinski, T. Kübarsepp, O. Märtens, Verification of performance of commercial LCR meters, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 408 - 409

B. Jeanneret, F. Overney, A. Rüfenacht, J. Nissilä, Transition shape effect in the transients generated by a programmable Josephson voltage standard, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 54 - 55

J. Lee, J. Schurr, J. Nissilä, L. Palafox, R. Behr, Impedance measurements with programmable Josephson systems, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 58 - 59

A. Satrapinski, O. Hahtela, A.M. Savin, S. Novikov, N. Lebedeva, Temperature dependence of Pd thin film cryo resistors, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 641 - 642

E.-P. Suomalainen, J. Hällström, Uncertainty estimate of a split-core Rogowski coil for high AC current, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 653 - 654

A. Bergman, U. Pogliano, J. Hällström, P. Wright, W. Lucas, A. Merev, G. Rietveld, M. Kurrat, J. Rickmann, Metrology for high voltage direct current, Conference Digest, CPEM 2010 (Daejeon, Korea, 13 - 18 June, 2010), pp. 669 - 670

A. Kemppinen, S. Kafanov, Yu. A. Pashkin, M. Meschke, M. Möttönen, D. V. Averin, J. P. Pekola, Quantized current of the SINIS turnstile, XLIII Annual Conf. of the Finnish Physical Society (Espoo, Finland, 12 - 14 March, 2009), paper 16.4

V. Maisi, A. Manninen, H. Seppä, Thermal null detection with a SQUID - a feasibility study for the quantum metrological triangle, XLIII Annual Conf. of the Finnish Physical Society (Espoo, Finland, 12 - 14 March, 2009), paper 18.38

A. Satrapinski, A. M. Savin, S. Novikov, O. Hahtela, NiCr based thin film cryo resistors, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 150 - 151

O.M. Hahtela, A.F. Satrapinski, P. Sievilä, N. Chekurov, Atomic layer deposited alumina (Al2O3) coating on thin film cryoresistors, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 272 - 273

I. Iisakka, K. Kalliomäki, J. Seppälä, A. Manninen, Subpicoampere current source based on a digital-to-analog converter, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 352 - 353

E.-P. Suomalainen, J. Hällström, An accurate asynchronous calculation method for evaluating peak and RMS values from sampled data, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 372 - 373

E.-P. Suomalainen, J. Hällström, On-site calibration of a current transformer using a Rogowski coil, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 468 - 469

J. Nissilä, V. Maisi, J. Kaasalainen, K. Ojasalo, A. Kemppinen, T. Mansten, A. Manninen, Development of a square-wave based ac Josephson system for ac voltage metrology, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 50 - 51

Y. Chekurov, J. Hällström, Influence of busbar geometry on AC current measurement using Rogowski coil, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 542 - 543

A. Manninen, O. Hahtela, P. Hakonen, J. Hassel, P. Helistö, A. Kemppinen, M. Möttönen, M. Paalanen, J. Pekola, A. Satrapinski, H. Seppä, Towards direct closure of the quantum metrological triangle, Conference Digest, CPEM 2008 (Broomfield, Colorado, USA, 8 - 13 June, 2008), pp. 630 - 631

A. Kemppinen, M. Meschke, M. Möttönen, J.J. Vartiainen, J.T. Peltonen, A.J. Manninen, O.-P. Saira, D.V. Averin, J.P. Pekola, Towards a quantum current standard, Proc. XLII Annual Conf. of the Finnish Physical Society (Turku, Finland, 27 - 29 March, 2008), p. 122

E. Seppälä, V. Korpelainen, K. Ojasalo, M. Sarjala, M. Alava, A. Lassila, A. Manninen, Dynamical nonlinearities in piezoelectric materials, in Ferroelectrics, Multiferroics, and Magnetoelectrics, Mater. Res. Soc. Symp. Proc. 1034E (Warrendale, PA, USA, 2007), paper 1034-K04-11

A. Kemppinen, J.J. Vartiainen, M. Möttönen, J.T. Peltonen, J.P. Pekola, Development of a Cooper pair pump: towards a quantum current standard, Proc. XLI Annual Conf. of the Finnish Physical Society (Tallinn, Estonia, 15 - 17 March, 2007), p. 154

A.Satrapinski, R.Rajala, Characterization of high resistance standards in MIKES, Proceedings of the 13th International Metrology Congress (Lille, France, 18 - 21 June, 2007)

D. Swaffield, P. Lewin, N. Dao, J. Hällström, Lightning impulse wave-shapes: defining the true origin and its impact on parameter evaluation, Proceedings of XV International Symposium on High Voltage Engineering (Ljubljana, Slovenia, 27 - 31 August, 2007)

J. Hällström, A. Bergman, Ding, F. Garnacho, R. Gobbo, T. Kato, Y. Li, A. Nilsson, G. Pesavento, S. Sato, A. X. Yu, International comparison of software for calculation of lightning impulse parameters based on a new processing algorithm, Proceedings of XV International Symposium on High Voltage Engineering (Ljubljana, Slovenia, 27 - 31 August, 2007)

A. Nilsson, A. Mannikoff, J. Hällström, Y. Li, New procedures for determination of parameters of lightning impulse voltage waveforms, Proceedings of XV International Symposium on High Voltage Engineering (Ljubljana, Slovenia, 27 - 31 August, 2007)

J. Hällström, J. Klüss, Characteristics of short distance flashover in pressurised SF6, Proceedings of XV International Symposium on High Voltage Engineering (Ljubljana, Slovenia, 27 - 31 August, 2007)

A. Kemppinen, J.J. Vartiainen, A.O. Niskanen, M. Möttönen, K.H.A. Baarman, A. Manninen. H. Seppä, J.P. Pekola, Development of a Cooper pair pump with combined flux and voltage control, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 164 - 165

A. Satrapinski, G. Eklund, Bilateral comparison MIKES - SP of calibration of 1 nF, 10 nF, 100 nF and 1 µF capacitors, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 202 - 203

J. Hällström, E.-P. Suomalainen, Rogowski coil setup for calibration of AC currents up to 10 kA, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 210 - 211

A. Kärkkäinen, N. Tisnek, A. Manninen, N. Pesonen, A. Oja, H. Seppä, MEMS-based AC voltage reference stabilized by compensation of built-in voltage, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 224 - 225

J. Hällström, M. Aro, A. Bergman, V. Bovier-Lapierre, F. Garnacho, J.I. Juvik, V. Kiseliev, Z. Lian Hong, W. Lucas, Y. Li, M.-L. Pykälä, J. Rungis, K. Schon, V.H. Truong, Worldwide comparison of lightning impulse voltage measuring systems at 400 kV level, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 276 - 277

J. Hällström, Y. Chekurov, M. Ishii, W. Lucas, J. Piiroinen, H. Shimizu, T.Wakimoto, High accuracy comparison of lightning and switching impulse calibrators, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 340 - 341

E.-P. Suomalainen, J. Hällström, Determination of absolute dissipation factor of standard capacitors, Conference Digest, CPEM 2006 (Torino, Italy, 9 - 14 July, 2006), pp. 348 - 349

A. Kemppinen, J.J. Vartiainen, A.O. Niskanen, M. Möttönen, K.H.A. Baarman, A. Manninen, H. Seppä, J.P. Pekola , Development of a Cooper pair pump: towards a quantum current standard, Proc. XL Annual Conf. of the Finnish Physical Society (Tampere, Finland, 9 - 11 March, 2006), abstract 08-16

A. Kemppinen, J. Nissilä, K. Ojasalo, J. Hassel, A. Manninen, P. Helistö, H. Seppä, AC voltage standard based on an externally shunted SIS Josephson junction array, Extended abstracts of ISEC 2005 (Noordwijkerhout, The Netherlands, 5 - 9 September, 2005), paper P-K.12

A. Kemppinen, J. Nissilä, K. Ojasalo, J. Hassel, A. Manninen, P. Helistö, H. Seppä, AC voltage standard based on a nonhysteretic Josephson junction array, Proc. XXXIX Annual Conf. of the Finnish Physical Society (Espoo, 17 - 19 March, 2005), p. 123

A. Kärkkäinen, N. Tisnek, N. Pesonen, M. Suhonen, A. Oja, A. Manninen, H. Seppä, Towards MEMS based electrical metrology, Proc. XXXIX Annual Conf. of the Finnish Physical Society (Espoo, 17 - 19 March, 2005), p. 347

A. Satrapinski, T. Mansten, J. Hämäläinen, N. Tisnek, Development and maintenance of impedance standards in MIKES, Proceedings of 12th International Metrology Congress (Lyon, France, 20 - 23 June, 2005)

P. Sipilä, R. Rajala, P. Kärhä, A. Manninen, E. Ikonen, Calibration of current-to-voltage converters for radiometric applications at picoampere level, Proceedings of NEWRAD 2005 (Davos, Switzerland, 17 - 19 October, 2005), pp. 223 - 224

P.O. Hetland, T. Sorsdal, G. Eklund, O. Gunnarsson, M. Hammarquist, A. Satrapinski, H.D. Jensen, Nordic comparison of the calibration of 1 Ohm and 10 kOhm resistors EUROMET.EM-S18, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), p. 265

A. Kärkkäinen, N. Pesonen, M. Suhonen, J. Kyynäräinen, A. Oja, A. Manninen, N. Tisnek, H. Seppä, AC voltage reference based on a capacitive micromechanical component, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), pp. 119-120

J. Hassel, L. Grönberg, P. Helistö, H. Seppä, J. Nissilä, A. Kemppinen, Fast Josephson arrays for voltage and impedance metrology, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), pp. 154-155

J. Nissilä, K. Ojasalo, A. Kemppinen, A. Manninen, J. Hassel, P. Helistö, H. Seppä, Development of a quantum AC voltage standard based on externally shunted Josephson arrays, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), pp. 158-159

A. Kärkkäinen, S.A. Awan, A. Oja, J. Kyynäräinen, A. Manninen, N. Tisnek, H. Seppä, A DC voltage reference based on MEMS, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), pp. 170-171

A. Satrapinski, Y.P. Semenov, Progress in development of the measurement equipment for the link between DC QHR and capacitance standards in MIKES, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), pp. 384-385

A. Satrapinski, Experience with AC calibration of conventional CCC, Conference Digest, CPEM 2004 (London, UK, 27 June - 2 July, 2004), pp. 516-517

P. Helistö, J. Hassel, H. Seppä, J. Nissilä, K. Ojasalo, and L. Grönberg, Development of a Josephson voltage standard for AC applications, Abstracts of the 6th European Conference on Applied Superconductivity (EUCAS 2003), Naples, Italy, 14 - 18 September, 2003, p. 15

J. Nissilä, K. Ojasalo, J. Hassel, J. Penttilä, A. Manninen, P. Helistö, H. Seppä, AC voltage standard based on a nonhysteretic Josephson junction array, Proc. XXXVII Annual Conf. of the Finnish Physical Society (Helsinki, 20 - 22 March, 2003), p. 221

A. Rautiainen, P. Helistö, T. Mansten, H. Seppä, 50 Hz current measurements with Rogowski coils, Conference Digest, CPEM 2002 (Ottawa, Canada, 16 - 21 June, 2002), pp. 230 - 231

T. Mansten, A. Rautiainen, P. Helistö, New AC current shunts of MIKES, Conference Digest, CPEM 2002 (Ottawa, Canada, 16 - 21 June, 2002), pp. 370 - 371

J.S. Penttilä, P. Helistö, H. Seppä, Towards quantum AC voltage standard, Conference Digest, CPEM 2002 (Ottawa, Canada, 16 - 21 June, 2002), pp. 498 - 499

A. Satrapinski, A. Rautiainen, R. Rajala, Resistance scaling from 10 mΩ to 10 kΩ at MIKES with cryogenic current comparator and Guildline bridges, Conference Digest, CPEM 2002 (Ottawa, Canada, 16 - 21 June, 2002), pp. 56 - 57

A. Satrapinski, Analysis of application of a cryogenic current comparator bridge for the measurements of capacitance standards, Digest of Technical Papers, URSI XXVII Convention on Radio Science (Espoo, Finland, 17 - 18 October, 2002), pp. 195 - 197

A. Rautiainen, T. Mansten, H. Seppä, P. Helistö, High precision 50 Hz current measurements with Rogowski coils, Digest of Technical Papers, URSI XXVI Convention on Radio Science (Tampere, Finland, 23 - 24 October, 2001), pp. 19 - 20

T. Mansten, A. Rautiainen, P. Helistö, AC voltage stepup of MIKES, Digest of Technical Papers, URSI XXVI Convention on Radio Science (Tampere, Finland, 23 - 24 October, 2001), pp. 21 - 22

P. Immonen, M. Laitinen, P. Helistö, Automatic dc voltage maintenance system at MIKES, Digest of Technical Papers, URSI XXVI Convention on Radio Science (Tampere, Finland, 23 - 24 October, 2001), pp. 47 - 48

A. Satrapinski, A. Rautiainen, R. Rajala, P. Helistö, Improvements in resistance calibration service in MIKES, Digest of Technical Papers, URSI XXVI Convention on Radio Science (Tampere, Finland, 23 - 24 October, 2001), pp. 49 - 50

T. Mansten, A. Rautiainen, P. Helistö, AC current shunts of MIKES, Digest of Technical Papers, URSI XXVI Convention on Radio Science (Tampere, Finland, 23 - 24 October, 2001), pp. 51 - 52

A. Satrapinski, H. Seppä, 100 Ohm transfer standard, Conference Digest, CPEM 2000 (Sydney, Australia, 14 - 19 May, 2000), pp. 102 - 103

J. Hassel, H. Seppä, L. Grönberg, I. Suni, P. Helistö, Progress in Josephson voltage standard development, Conference Digest, CPEM 2000 (Sydney, Australia, 14 - 19 May, 2000), pp. 399 - 401

P. Helistö, H. Seppä, A. Rautiainen, Measurement uncertainty in the 1/f noise region: Zener voltage standards, Conference Digest, CPEM 2000 (Sydney, Australia, 14 - 19 May, 2000), pp. 401 - 402

P. Helistö, A. Rautiainen, H. Seppä, Automatic high precision audio frequency power standard, Conference Digest, CPEM 2000 (Sydney, Australia, 14 - 19 May, 2000), pp. 41 - 42

A. Satrapinski, H. Seppä, B. Schumacher, P. Warnecke, F. Delahaye, W. Poirier, F. Piquemal, Quick comparison of QHR system using a 100 Ohm transfer resistor, Conference Digest, CPEM 2000 (Sydney, Australia, 14 - 19 May, 2000), pp. 560 - 561

A. Satrapinski, H. Seppä, P. Helistö, Application of the quantum Hall effect for the realisation of SI unit of resistance at VTT

A. Satrapinski, H. Seppä, P. Helistö, Quantum Hall measurements of a temperature and pressure stabilized resistance standard, Proc. XXXIII Annual Conf. of the Finnish Physical Society (Turku, 4 - 6 March, 1999), p. 8.41

P. Helistö, J. Hassel, H. Seppä, Josephson voltage standard development at VTT Automation, Proc. XXXIII Annual Conf. of the Finnish Physical Society (Turku, 4 - 6 March, 1999), p. 8.7

T. Sillanpää, A.S. Oja, H. Seppä, Micromechanical silicon scale, Conference Digest, CPEM 98 (Washington DC, USA, 6 - 10 July, 1998), pp. 106 - 107

H. Seppä, A. Satrapinski, M. Kiviranta, V. Virkki, Thin-film cryogenic current comparator, Conference Digest, CPEM 98 (Washington DC, USA, 6 - 10 July, 1998), pp. 159 - 160

M. Suhonen, H. Seppä, A.S. Oja, M. Heinilä, I. Näkki, AC and DC voltage standards based on silicon micromechanics, Conference Digest, CPEM 98 (Washington DC, USA, 6 - 10 July, 1998), pp. 23 - 24

A. Satrapinski, A. S. Oja, H. Seppä, Improvements in the quantum Hall resistance standard at VTT, Conference Digest, CPEM 98 (Washington DC, USA, 6 - 10 July, 1998), pp. 412 - 413

K. Kalliomäki, Electrical metrology in Finland, Proceedings of XXII Convention on Radio Science (Oulu, 20 - 21 November, 1997), pp. 11 - 12

A. Satrapinski, A.Oja, H. Seppä, Quantum Hall resistance standard at VTT, Proceedings of XXII Convention on Radio Science (Oulu, 20 - 21 November, 1997), pp. 141 - 142

H. Seppä, A. Satrapinski, Determination of Ohm-VTT using the quantum Hall resistance, Conference Digest, CPEM 96 (Braunschweig, 6 - 10 July, 1996), pp. 252 - 253

H. Seppä, A. Satrapinski, AC resistance bridge based on the cryogenic current comparator, Conference Digest, CPEM 96 (Braunschweig, 6 - 10 July, 1996), pp. 402 - 403

H. Seppä, H. Sipola, T. Mansten, Design and optimization of range resistors for a multijunction thermal converter, Conference Digest, CPEM 94 (Boulder, USA, 1994)

H. Seppä, A. Satrapinski, T. Varpula, J.-M. Saari, Frequency dependence of some 100 Ohm resistors measured with a CCC-based AC resistance bridge, Conference Digest, CPEM 94 (Boulder, USA, 1994), pp. 206 - 207

H. Seppä, A. Satrapinski, A cryogenic current comparator based on a low-noise DC SQUID and a DC coupled readout electronics, Conference Digest, CPEM92 (Paris, France, 8 - 12 June, 1992), pp. 286 - 287