UHF sensor characteristic verification method and terminal equipment based on return loss

A UHF sensor and return loss technology, applied in the field of sensor detection, can solve the problem of inaccurate characteristic verification, and achieve the effect of solving the inaccurate characteristic verification and improving the practical application effect and effect.

Active Publication Date: 2022-07-22
STATE GRID HEBEI ENERGY TECH SERVICE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a return loss-based UHF sensor characteristic verification method and terminal equipment to solve the problem of inaccurate characteristic verification in the prior art

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  • UHF sensor characteristic verification method and terminal equipment based on return loss
  • UHF sensor characteristic verification method and terminal equipment based on return loss
  • UHF sensor characteristic verification method and terminal equipment based on return loss

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Embodiment Construction

[0050] In the following description, for the purpose of illustration rather than limitation, specific details such as specific system structures and technologies are set forth in order to provide a thorough understanding of the embodiments of the present invention. However, it will be apparent to those skilled in the art that the present invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0051] In order to illustrate the technical solutions of the present invention, the following specific embodiments are used for description.

[0052] As described in the background art, the existing verification methods for UHF sensors have the problem of inaccurate characteristic verification. The applicant has found through research that the existing method for verifyi...

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Abstract

The present invention is applicable to the technical field of sensor detection, and provides a method for verifying characteristics of a UHF sensor based on return loss and a terminal device, wherein the method for verifying characteristics of a UHF sensor based on return loss includes: According to the preset number of scanning points in the frequency band, measure the S11 or S22 parameters of the target UHF sensor of the gas-insulated switchgear to obtain the target return loss curve of the target UHF sensor; obtain the target return loss curve and reference echo The correlation coefficient of the loss curve; wherein, the reference return loss curve is obtained according to the return loss curve of at least one UHF sensor measured in advance, and the at least one UHF sensor is of the same type as the target UHF sensor; in the correlation coefficient When the value is less than the preset threshold, the target UHF sensor is determined as a UHF sensor with abnormal characteristics in the preset frequency band. The invention can solve the problem of inaccurate characteristic verification.

Description

technical field [0001] The invention belongs to the technical field of sensor detection, and in particular relates to a method for verifying characteristics of a UHF sensor based on return loss and a terminal device. Background technique [0002] In recent years, Gas Insulated Switchgear (GIS) has been widely used in power systems, especially in the fields of high voltage, ultra-high voltage and ultra-high voltage. GIS equipment can be composed of circuit breakers, isolating switches, grounding switches, transformers, arresters, busbars, connectors and outgoing terminals. Sulfur fluoride (SF6) insulating gas. In order to ensure the safe operation of GIS equipment, UHF detection methods are usually used to detect GIS equipment. In UHF detection, UHF sensor is a key device, and its sensitivity and other characteristics directly determine the accuracy of UHF detection. like figure 1 shown, figure 1 A three-phase GIS device is shown, wherein S1 and S2 in phase A, S3 and S4 ...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G01R35/00
CPCG01R35/005G01R35/007
Inventor李天辉夏彦卫顾朝敏董驰张达贾伯岩刘宏亮路士杰
OwnerSTATE GRID HEBEI ENERGY TECH SERVICE CO LTD