Detection electrode and detection method for resistance-type wave-absorbing honeycomb

By designing a detection electrode and detection method suitable for resistive absorbing honeycombs, non-destructive testing of honeycombs is achieved, solving the problem of difficult to accurately test the internal uniformity and resistance value of honeycombs in the existing technology. It is applicable to honeycombs of various shapes and large thicknesses, providing high-precision and reliable detection results.

CN120721799APending Publication Date: 2025-09-30BEIJING GAOYI CHUANGHE AVIATION TECH CO LTD
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Patent Information

Application Number
CN202510927465.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-07-07
Publication Date
2025-09-30

AI Technical Summary

Technical Problem

It is difficult to achieve non-destructive testing of resistive absorbing honeycombs with existing technologies, especially it is difficult to accurately test the internal uniformity and resistance value of the honeycomb, and traditional methods are not applicable to honeycombs of various shapes and large thicknesses.

Method used

A detection electrode was designed, including an electrical contact part, an insulating part, and a connecting wire. The electrical contact part fits the shape of the inner wall of the honeycomb hole and can be inserted into the honeycomb hole. It is used in conjunction with a laser for positioning, and the resistance value and uniformity of the honeycomb are calculated through partition testing.

Benefits of technology

It realizes non-destructive testing of resistive absorbing honeycombs and can detect the average surface resistance of the entire honeycomb in multiple areas. The test results have good comparability and repeatability. It is applicable to honeycombs of various shapes and large thicknesses, and the operation is simple and the equipment requirements are low.

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Abstract

The invention relates to a detection electrode and a detection method for a resistance-type wave-absorbing honeycomb, and belongs to the technical field of functional composite material detection.The detection electrode comprises a connecting wire used for being connected with resistance testing equipment; the insulating part is connected to the connecting wire and is made of an insulating material; and the electric contact part is connected to the insulation part and is made of a conductive material, the electric contact part is attached to the shape of the inner wall of the honeycomb hole to be detected, and the electric contact part has a preset length and can extend into the honeycomb hole. By designing the detection electrodes, a set of method capable of accurately and conveniently testing the honeycomb hole resistance is established, nondestructive testing of the resistance type wave-absorbing honeycomb is achieved, the average surface resistance of the whole honeycomb can be detected in multiple areas, and the detection result has good comparability and repeatability; and on the other hand, the detection method provided by the invention is simple to operate, can be used for detection at any time, does not need furnace parts during feeding, has low requirements on test equipment and sites, and is extremely easy to prepare corresponding equipment.
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