Title :
Automatic field distribution measurement inside of enclosures
Author :
Wolfsperger, Hans A. ; Jordan, Dietmar ; Schwab, Adolf J.
Author_Institution :
Inst. for Electr. Energy Syst. & High Voltage Technol., Karlsruhe Univ., Germany
Abstract :
A new measurement system is developed to determine the field distribution inside of enclosures, shielded cabinets etc. It consists of a small electric or magnetic field sensor and a mechanism which allows one to position this sensor with an accuracy of 1 mm in three axes. Full automatic field intensity and shielding effectiveness measurements can be performed at any position in the frequency range 30 MHz-1 GHz, obtaining three-dimensional images of the field. Thus, weak points of the shield and field extrema caused by cavity resonances can be detected
Keywords :
automatic test equipment; electric field measurement; electric sensing devices; electromagnetic shielding; magnetic field measurement; magnetic sensors; packaging; 30 MHz to 1 GHz; 3D images; UHF; VHF; automatic field distribution measurement; automatic field intensity measurement; automatic measurement system; automatic shielding effectiveness measurement; cavity resonances; electric field sensor; enclosures; field extrema; frequency range; magnetic field sensor; shielded cabinets; three-dimensional images; Antenna measurements; Electric variables measurement; Frequency; Insertion loss; Magnetic field measurement; Magnetic sensors; Performance evaluation; Resonance; Sensor phenomena and characterization; Testing;
Conference_Titel :
Electromagnetic Compatibility, 2000. IEEE International Symposium on
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-5677-2
DOI :
10.1109/ISEMC.2000.875569
