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Aircraft surface humidity online monitoring sensing probe

A technology for sensing probes and aircraft surfaces, applied in the direction of material impedance, etc., can solve the problems of deterioration of corrosion conditions, reduction of equipment and facility service cycles, waste of manpower and material resources, and time cost.

Inactive Publication Date: 2020-03-10
CHINA SPECIAL TYPE FLIER RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] When the aircraft is used in coastal areas, it will be subjected to extreme harsh marine environments such as high and low temperature, humidity, salt spray, light, chemical pollution, rain, snow, fog, and seawater splashing, which will easily cause damage to its body structure, systems, electronic equipment and Corrosion of accessories, especially in closed areas, corners, and concave areas of the aircraft structure, which is prone to water accumulation, forming an extremely harsh corrosion environment, which seriously affects the structural integrity and functionality of the aircraft
The corrosion maintenance of traditional aircraft often adopts the method of regular maintenance. It is mainly based on the use experience to formulate the best detection time and corrosion protection maintenance. It is used to monitor the corrosion damage of aircraft structural coatings and formulate maintenance methods. The main disadvantage is that there will be Premature and lagging of maintenance projects, premature maintenance will cause a huge waste of manpower, material resources and time costs, while reducing the service life of equipment and facilities, while lagging will lead to further deterioration of corrosion conditions, untimely maintenance will even reduce Aircraft service life, safety and reliability

Method used

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  • Aircraft surface humidity online monitoring sensing probe
  • Aircraft surface humidity online monitoring sensing probe

Examples

Experimental program
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Effect test

Embodiment

[0033] Aircraft surface humidity online monitoring sensor probe mainly includes printed circuit board (PCB board), copper electrode and interface.

[0034] PCB board: size (5.0*4.0) cm, single layer, with fixing bolt holes, weighing about 10g;

[0035] Copper electrode: interdigitated electrode, "finger" length 35mm, "finger" width 1mm, distance between "finger" and "finger" 1mm, 8 fingers on one side.

[0036] Interface: The diameter of the hole is 1.5mm, which is used to connect the signal collector and the surface humidity probe.

[0037] The following is the experimental verification carried out according to the above probe design: the surface humidity probe is placed in the air, sprayed with water mist and dried naturally, and the reliability of the surface humidity probe is tested and evaluated. figure 2 It is a verification example for the online monitoring probe of surface humidity. The initial state of the surface humidity probe is placed in the air without water, ...

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Abstract

The invention belongs to the field of aircraft structure corrosion environment element monitoring, and particularly relates to an aircraft surface humidity online monitoring sensing probe. The probe comprises a first line electrode, a second line electrode and an insulating carrier plate, the first line electrode and the second line electrode are made of the same material and are arranged on the carrier plate in parallel, and the distance between the first line electrode and the second line electrode is smaller than the line width of the first line electrode and the line width of the second line electrode. The probe monitors the impedance between the electrodes, can quickly reflect whether a liquid film or moisture exists on the surface of a structure or not, is light in weight and small in size, can be directly attached to the surface of an airplane structure for in-situ monitoring, does not damage the original structure, and does not influence the weight and aerodynamic configurationof the airplane.

Description

technical field [0001] The invention belongs to the field of monitoring of aircraft structure corrosion environment elements, and in particular relates to an on-line monitoring sensor probe for aircraft surface humidity. Background technique [0002] When the aircraft is used in coastal areas, it will be subjected to extreme harsh marine environments such as high and low temperature, humidity, salt spray, light, chemical pollution, rain, snow, fog, and seawater splashing, which will easily cause damage to its body structure, systems, electronic equipment and Corrosion of accessories, especially in enclosed areas, corners, and depressions of the aircraft structure, where water is prone to accumulate, forming an extremely harsh corrosion environment, which seriously affects the structural integrity and functionality of the aircraft. The corrosion maintenance of traditional aircraft often adopts the method of regular maintenance. It is mainly based on the use experience to form...

Claims

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Application Information

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IPC IPC(8): G01N27/02
CPCG01N27/02
Inventor 张登金涛慕仙莲袁猛王英芹刘元海刘成臣赵连红王浩伟
Owner CHINA SPECIAL TYPE FLIER RES INST
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