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Research Output 2007 2019

  • 24 Conference article in proceedings
  • 8 Article
  • 2 Report
  • 1 Review Article
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Article
2019

Application of Charge-Sensitive Preamplifier for the Calibration of Partial Discharge Calibrators below 1 pC

Havunen, J. & Hällström, J., 1 Jun 2019, In : IEEE Transactions on Instrumentation and Measurement. 68, 6, p. 2034-2040 7 p., 8640062.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
preamplifiers
Partial discharges
Calibration
Signal to noise ratio
signal to noise ratios
2017
2 Citations (Scopus)

Optimizing Temperature Coefficient and Frequency Response of Rogowski Coils

Lehtonen, T. A. & Hällstrom, J., 15 Oct 2017, In : IEEE Sensors Journal. 17, 20, p. 6646-6652 7 p., 8022679.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
frequency response
Frequency response
coils
coefficients
Temperature
2015
6 Citations (Scopus)

Performance of a modular wideband HVDC reference divider for voltages up to 1000 kV

Hällström, J., Bergman, A., Dedeoglu, S., Elg, A-P., Houtzager, E., Klüss, J., Lehtonen, T., Lucas, W., Meisner, J., Merev, A., Nieminen, T., Schmidt, M., Suomalainen, E-P. & Weber, C., 2015, In : IEEE Transactions on Instrumentation and Measurement. 64, 6, p. 1390-1397

Research output: Contribution to journalArticleScientificpeer-review

dividers
high voltages
broadband
Electric potential
electric potential
4 Citations (Scopus)

Traceability and Characterization of a 1000 kV HVDC Reference Divider

Elg, A-P., Bergman, A., Hällström, J., Kharezy, M. & Nieminen, T., 2015, In : IEEE Transactions on Instrumentation and Measurement. 64, 6, p. 1709-1715

Research output: Contribution to journalArticleScientificpeer-review

dividers
high voltages
Electric potential
Calibration
resistors
2014
12 Citations (Scopus)

Performance of a wideband 200-kV HVDC reference divider module

Hällström, J., Bergman, A., Dedeoglu, S., Elg, A-P., Houtzager, E., Lucas, W., Merev, A., Meisner, J., Schmidt, M., Suomalainen, E-P. & Weber, C., 2014, In : IEEE Transactions on Instrumentation and Measurement. 63, 9, p. 2264-2270 6 p.

Research output: Contribution to journalArticleScientificpeer-review

dividers
high voltages
modules
broadband
Electric potential
2011
6 Citations (Scopus)

Comparison of asynchronous sampling correction algorithms for frequency estimation of signals of poor power quality

Lapuh, R., Clarkson, P., Pogliano, U., Hällström, J. K. & Wright, P. S., 2011, In : IEEE Transactions on Instrumentation and Measurement. 60, 7, p. 2235-2241 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Frequency estimation
Power quality
sampling
Sampling
Measurement errors
2007
4 Citations (Scopus)

Construction and performance evaluation of calibration system for low voltage impulse

Wakimoto, T., Shimizu, H., Ishii, M., Hällström, J. & Lucas, W., 2007, In : IEEJ Transactions on Power and Energy. 127, 1, p. 261-266

Research output: Contribution to journalArticleScientificpeer-review

Open Access
Calibration
Voltage measurement
Electric potential
Industry
Uncertainty
4 Citations (Scopus)

Worldwide comparison of lightning impulse voltage measuring systems at the 400-kV level

Hällstrom, J., Aro, M., Bergman, A., Bovier-Lapierre, V., Garnacho, F., Juvik, J. I., Kiseliev, V., Lian Hong, Z., Lucas, W., Li, Y., Pykälä, M. L., Rungis, J., Schon, K. & Truong, V. H., 2007, In : IEEE Transactions on Instrumentation and Measurement. 56, 2, p. 388-391

Research output: Contribution to journalArticleScientificpeer-review

lightning
Lightning
impulses
Electric potential
electric potential