Sensors for Measurement of Intense Electromagnetic Pulses
Abstract
Fast, large-amplitude pulses are encountered in the nuclear electromagnetic pulse (EMP), lightning, various pulse-power machinery, and charged particle beams. In the context of the EMP program various accurate, broad band sensors have been developed. The principal types of these sensors have been designed to measure electric and magnetic fields, current densities, currents, and voltages. Often it is the time-derivative waveforms that are measured for good accuracy. These sensors are now being applied to the measurement of the fast-transient electromagnetic properties of lightning. The general design concepts and techniques for such sensors are also applicable in various pulse power machines, where one may wish to measure various impulsive currents and voltages. A more difficult problem occurs when there are pulsed particles beams (y ray, X ray, neutron, electron, etc.) present. However, some of the important EMP sensor designs were for nuclear-source- region environments, making the concepts generally applicable for such particle-beam environments. Besides the actual sensors which convert the desired electromagnetic field parameters to voltage and current at a connector (terminal), one must also consider the topology of any conductors (such as cables) attached to the sensor, or of which the sensor forms a part (such as a shield), in designing experiments. In some cases symmetry is also an important consideration.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1981
- Accession Number
- ADA638104
Entities
People
- C. E. Baum
Organizations
- Air Force Research Laboratory