Device and method for calibrating uniformity domain of miniaturized synthetic electric field

Abstract

The invention discloses a device and a method for calibrating the uniformity domain of a miniaturized synthetic electric field, and belongs to the technical field of electromagnetic measurement and calibration. The device comprises two layers of circular plate poles. The edges of the circular plate poles are chamfered, and the space between the two layers of circular plate poles is supported by aplurality of epoxy resin supporting columns with a preset length of d. The epoxy resin supporting columns are provided with a plurality of holes with a hole spacing of d/4. Single-turn copper wires with preset diameters penetrate through the holes of the epoxy resin supporting columns in the plane parallel to the circular plate poles to form a closed loop, and the joints of the copper wires are connected by welding. By utilizing the thought of a small grading ring, the problem of uniformity domain reduction caused by the edge effect due to great reduction of the radius of the parallel pole plates and equal-proportion reduction of the distance between the parallel pole plates is resolved under the condition of ensuring enough test space.

Description

technical field [0001] The present invention relates to the technical field of electromagnetic measurement and calibration, and more particularly, to a device and method for calibrating a miniaturized synthetic electric field uniform domain. Background technique [0002] The existing synthetic electric field calibration devices are all based on the use of large parallel plates, usually metal plates with a diameter of 2m, and the distance between the plates is 10cm, which is relatively large and can only be fixed in the laboratory and cannot be moved to the field for monitoring Click to use. [0003] With the diversification of the measurement environment, the measurement device must be calibrated on site before measurement in different environments. Only in this way can the accuracy of the measurement results be guaranteed. Therefore, it can only be used in the field after the calibration device is miniaturized. [0004] The calibration device cannot simply reduce the size...

AI Technical Summary

Problems solved by technology

[0004] The calibration device cannot simply reduce the size of the large parallel plates in proportion. Simply reducing the size in proportion will result in insufficient internal space to place the sensor; if no measures are taken, the size of the metal plate will be reduced and the plate will be enlarged. The distance between them will reduce the uniform domain due to the existence of the plate edge effect, which will bring a large error to the calibration work

Images