Title :
EMC combined di/dt current probe
Author :
Van den Bossche, Alex ; Ghijselen, Jozef
Author_Institution :
Lab. for Electr. Machines & Power Electron., Ghent Univ., Belgium
Abstract :
A current sensor for the analysis of conducted radio-frequency interference (RFI), based on an air-cored and screened Rogowski coil, is presented. The sensor is realised as a convenient current clamp, suitable for on-site measurements, e.g. in industrial environments. The probe is insensitive to strong mains power frequency currents, electric and magnetic fields, and parasitic air gap. With an incorporated wide-band amplifier a transimpedance characteristic of 0.5 μH in parallel with 5 Ω is realised. The effective frequency range is larger than 9 kHz-30 MHz. It can be used both for time-domain measurements using oscilloscopes and as a probe (with a suitable antenna factor) for electromagnetic compatibility (EMC) spectrum analysers
Keywords :
coils; electric current; electric sensing devices; electromagnetic compatibility; probes; radiofrequency interference; spectral analysers; wideband amplifiers; 5 ohm; EMC combined di/dt current probe; EMC spectrum analysers; RFI; air-cored screened Rogowski coil; antenna factor; conducted radio-frequency interference; current clamp; current sensor; electromagnetic compatibility; frequency range; industrial environments; on-site measurements; oscilloscopes; time-domain measurements; transimpedance characteristic; wide-band amplifier; Clamps; Coils; Electromagnetic compatibility; Magnetic analysis; Magnetic field measurement; Magnetic sensors; Probes; Radio frequency; Radiofrequency interference; Sensor phenomena and characterization;
Conference_Titel :
Electromagnetic Compatibility, 2000. IEEE International Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-5677-2
DOI :
10.1109/ISEMC.2000.874683
