|
FIZIKA A 16 (2007) 4 , 233-242
 
APPLICATION OF ROGOWSKI COIL IN FAST PULSED-CURRENT MEASUREMENTS OF
CAPILLARY DISCHARGE
SANDA PLESLIĆa and ŽELJKO ANDREIĆb
aDepartment of Applied Physics, Faculty of Electrical Engineering and
Computing,
University of Zagreb, Unska 3, 10000 Zagreb, Croatia
E-mail address: sanda.pleslic@fer.hr
bFaculty of Mining, Geology and Petroleum Engineering, University of
Zagreb,
Pierottijeva 6, Zagreb, Croatia
Received 18 September 2006; Revised manuscript received 16 November 2007
Accepted 19 December 2007 Online 29 February 2008
The measurement of fast pulsed-current and observation of time variations of
the current are important for diagnostics of high-current discharges. The most
convenient method of measurement is the application of the Rogowski coil which
can measure variable currents in a very wide range of frequency and current. We
introduce the Rogowski coil in the measurements of current of the ablative
capillary discharge. The discharge current is a very important characteristic of
the process and its determination allows the estimation of the period of the
discharge cycle and of the total inductance of the circuit. In our experiments,
the discharge currents were of the order of magnitude of several kA, the
discharge cycle periods were of the order of 300 ns and the total inductances
were of the order of a few tens of nH.
PACS numbers: 52.70.-m, 52.70.Ds, 52.80.-s
UDC 537.862, 537.52, 537.531
Keywords: pulsed-current measurement, Rogowski coil, capillary discharge
|
