Li, Qingmin and Siew, W.H. and Stewart, Martin and Walker, Keith and Piner, Chris (2002) Digital compensation method for high frequency current probes. Measurement Science and Technology, 13 (4). pp. 529-532. ISSN 0957-0233Full text not available in this repository. (Request a copy from the Strathclyde author)
Based on the steepest descent theory (Edmonson W, Srinivasan K, Wang C and Principe J 1997 IEEE Trans. Circuits Syst.45 379-84, Neil E and Mian O N 1992 IEEE Trans. Neural Netw.3 308-14) and the original response curve of a current probe used for power system electromagnetic compatibility measurement, an accurate analogue model has been built for the probe, with a maximum error of 5.2%. Before application the analogue model needs to be discretized in the z domain, however the digital model gives a steeper frequency response than the analogue one. To compensate for this effect, another digital band-pass filter was attached to the above model, and its parameters were obtained by computer simulation. The compensated digital model presented a maximum error of 5.8% compared with the probe's response curve. The digital modelling and compensating strategy can feasibly expand the frequency band over which the probe is useful for measurement applications.
|Keywords:||digital modelling, steepest descent algorithms, filtering, steepest descent theory, Electrical engineering. Electronics Nuclear engineering, Instrumentation, Applied Mathematics|
|Subjects:||Technology > Electrical engineering. Electronics Nuclear engineering|
|Department:||Faculty of Engineering > Electronic and Electrical Engineering|
|Depositing user:||Strathprints Administrator|
|Date Deposited:||16 Oct 2008|
|Last modified:||22 Mar 2017 09:32|