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发明公开
CN108089069A 一种应用于直流超高压长电缆中空间电荷分布测量的组合式电磁信号屏蔽装置 无效 - 驳回

一种应用于直流超高压长电缆中空间电荷分布测量的组合式电磁信号屏蔽装置
摘要：
本发明公开了一种应用于直流超高压长电缆中空间电荷分布测量的组合式电磁信号屏蔽装置，包括缺少底面的上盒体（21）和缺少顶面的下盒体（22），上盒体（21）的左右端面开设有上半圆孔（211），下盒体（22）的左右端面开设有下半圆孔（221），上半圆孔（211）和下半圆孔（221）构成整个圆孔，上盒体（21）的顶面垂直贯穿连有波导管（213），波导管（213）的中心设置有激光孔，上盒体（21）的顶面设置有BNC孔（216）。本发明的一种应用于直流超高压长电缆中空间电荷分布测量的组合式电磁信号屏蔽装置，结构简单，操作方便，屏蔽电磁信号干扰的效果好，能够极大改善空间电荷的信噪比，更加精确地测出绝缘介质中的空间电荷分布，为理论研究和实践生产提供了可靠的技术基础。
摘要（英）：

The invention discloses a combined electromagnetic signal shielding device applied to distribution measurement of space charges in a direct-current ultra-high-voltage long cable. The device comprisesan upper box body (21) without a bottom surface and a lower box body (22) without a top surface; upper semicircular holes (211) are formed in the left and right end faces of the upper box body (21), lower semicircular holes (221) are formed in the left and right end faces of the lower box body (22), and whole circular holes are formed by the upper semicircular holes (211) and the lower semicircular holes (221); a waveguide pipe (213) vertically penetrates through the top surface of the upper box body (21) and is connected to the top surface of the upper box body (21), a laser hole is formed inthe center of the waveguide pipe (213), and a BNC hole (216) is formed in the top surface of the upper box body (21). The combined electromagnetic signal shielding device applied to the distributionmeasurement of the space charges in the direct-current ultra-high-voltage long cable is simple in structure and convenient to operate, the effect of shielding electromagnetic signal interference is good, the signal-to-noise ratio of the space charges can be greatly increased, the distribution of space charges in an insulating medium is measured more accurately, and a reliable technical basis is provided for theoretical research and practical production.

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