Three-dimensional pulsed magnetic field wave reconstruction method and three-dimensional magnetic field sensor

Abstract

The invention discloses a three-dimensional pulsed magnetic field wave reconstruction method and a three-dimensional magnetic field sensor. The three-dimensional pulsed magnetic field wave reconstruction adopts a pulsed magnet field wave digital reconstruction method based on a full circuit expression; based on the method, no special requirements for the sizes of a sensor sampling resistance and self inductance are raised, so the sensor is convenient to manufacture and simultaneously a three-dimensional magnetic field is convenient to restore and synthesize. A framework of the three-dimensional sensor is made of non-magnetic materials; the frequency measuring range can be 1KHz to 200KHz; the three-dimensional sensor is mainly used for measuring the three-dimensional pulsed magnetic field,and can measure the magnetic fields in X-axis, Y-axis and Z-axis directions. The invention can truly reflect the three-dimensional pulsed magnetic field waves within the maximum amplitude dynamic range.

Description

technical field [0001] The invention belongs to the technical field of electrical engineering, in particular to a three-dimensional pulse magnetic field waveform reconstruction method and a three-dimensional magnetic field sensor. Background technique [0002] The measurement of electromagnetic pulse is an important link in the research of electromagnetic pulse protection. The purpose of measurement is to determine the electromagnetic pulse environment, response to electromagnetic pulse and protection effect of the equipment and system under test; the measurement objects include the measurement of magnetic field . Since the electromagnetic pulse signal edge is only a few microseconds and the transient signal lasts several microseconds to several milliseconds, its spectrum covers the frequency band from zero to hundreds of megahertz, so the working frequency band of the measuring sensor is required to meet this requirement , the output of the sensor should be able to truly r...

AI Technical Summary

Problems solved by technology

Existing magnetic field sensors generally can only measure one-dimensional magnetic fields in three-dimensional space. For pulsed magnetic field measurements, hardware integration circuits are used, or there are complex circuits and devices, or there are problems such as limited upper or lower limit ranges of frequency bands. Voltage or impulse current discharge, transient electromagnetic field generated by disconnector or knife switch operation, etc. Such wide-band range and large-amplitude dynamic range waveforms often cannot be truly reflected, or the restored waveform is distorted and the frequency band is distorted.

Images