Use of a Parallel Plate Transmission Line to Calibrate a Fiber-Optic Coupled Magnetic Field Sensor

摘要

It is vitally important to accurately measure the field components of a simulated electromagnetic pulse (EMP), to determine both the waveshape and the amplitude of the electromagnetic test environment. A parallel plate transmission line is used to calibrate a magnetic field sensor as well as to determine the field enhancement factor when the sensor is mounted on the compact transmitter of an optical electronic data-link system. The transmitter is coupled to the recording instrumentation by means of a fiber-optic cable rather than an rf cable, thus eliminating a spurious signal pickup source. Some comments are also made on the use of enhancement factors for magnetic field sensors mounted on cubical boxes. (Author)