公开(公告)号：US20250027908A1

公开(公告)日：2025-01-23

申请号：US18704855

申请日：2022-10-28

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Dong Jin YOON ,  Choon Su PARK ,  Sun Ho LEE

IPC: G01N29/12 ,  G01N29/07

Abstract: A third-party interference monitoring system is provided. The third-party interference monitoring system, according to one embodiment of the present invention, is for detecting third-party interference in advance before a buried pipeline buried underground is damaged by the third-party interference. The third-party interference monitoring system comprises: a sensor unit which is installed on a buried pipeline so as to detect an impact signal which is propagated along the ground or the buried pipeline when heavy equipment strikes the ground; and a control unit which acquires a time domain value of the impact signal by receiving data from the sensor unit, converts the time domain value to a frequency domain value, and then detects the third-party interference on the basis of frequency response characteristics of the impact signal.

公开(公告)号：US20150357103A1

公开(公告)日：2015-12-10

申请号：US14758313

申请日：2013-12-27

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Young Joo KIM ,  Dong Jin YOON

IPC: H01F5/00

CPC classification number: H01F5/00

Abstract: A coil according to one embodiment of the present invention relates to a coil having a multi-layer structure, comprising n winding wires (n≧2, n is natural number) which are spaced apart from a central axis and wound around the central axis, wherein a first winding of the n windings is wound to a first height in a direction perpendicular to a reference surface, a second winding is wound to a second height lower than the first height in a direction perpendicular to the reference surface, the first winding has a first radius from the central axis, the second winding has a second radius from the central axis, the second radius being smaller than the first radius, and the second winding wire is disposed in the first winding wire.

Abstract translation: 根据本发明的一个实施例的线圈涉及一种具有多层结构的线圈，包括与中心轴线间隔开并缠绕在中心轴线上的n根绕组线（n≥2，n是自然数） 其中所述n个绕组的第一绕组在垂直于参考表面的方向上缠绕到第一高度，第二绕组在垂直于所述参考表面的方向上缠绕到比所述第一高度低的第二高度，所述第一绕组具有 所述第二绕组具有从所述中心轴线的第一半径，所述第二绕组具有距所述中心轴线的第二半径，所述第二半径小于所述第一半径，所述第二绕组线设置在所述第一绕组线中。