Methods for Free-Space Ultra-Short Solitary EMP Measurement

• Main Authors: Petr Drexler, Pavel Fiala, Eva Kadlecova
• Format: Article
• Language: English
• Published: VSB-Technical University of Ostrava 2006-01-01
• Series: Advances in Electrical and Electronic Engineering
• Subjects: emp; faraday; magneto-optic.
• Online Access: http://advances.utc.sk/index.php/AEEE/article/view/451

There are some suitable methods for ultra-short solitary electromagnetic pulses (EMP) measurement. The EMPs are generated by high power microwave generators. The characteristic of EMPs is high power level (Pmax = 250 MW) and very short time duration (tp Î <1, 60> ns). Special requirements for measurement methods are placed because of the specific EMPs properties.Two suitable methods for this application are presented in the paper. The first – calorimetric method, utilizes the thermal impacts of microwave absorption. The second method presented – magneto-optic method, use the Faraday’s magneto-optic effect as a sensor principle. It was realized combined calorimetric sensor and there were made some experimental EMP measurements with good results. The sensor utilizing magneto-optic method is in development.