Oil trace moisture on-line monitoring sensor

A technology for monitoring sensors and trace moisture, applied in the direction of material capacitance, etc., can solve the problems of high detection cost, long verification period, complicated steps, etc., and achieve the effect of light weight, simple operation and high sensitivity
CN104237331AInactive Publication Date: 2014-12-24AVIC BEIJING CHANGCHENG AVIATION MEASUREMENT & CONTROL TECH INST +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
AVIC BEIJING CHANGCHENG AVIATION MEASUREMENT & CONTROL TECH INST
Publication Date
2014-12-24
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an oil trace moisture on-line monitoring sensor. The oil trace moisture on-line monitoring sensor comprises a high polymer thin-film capacitor, a temperature sensor, a signal processing circuit board and a mechanical seal structure, wherein the high polymer thin-film capacitor and the temperature sensor are used for measuring the content and the temperature of oil trace moisture respectively, the signal processing circuit board is used for detecting and processing output signals of the high polymer thin-film capacitor and the temperature sensor and converting the output signals into content and temperature values of oil moisture, and the mechanical seal structure comprises a protection sleeve, a mechanical shell, a gold-plating wire, a connector member, a fixation screw, an end cover and the like and is used for supporting and protecting an inside structure and preventing pollution caused by entry of oil. According to the oil trace moisture on-line monitoring sensor, the purpose of real-timely monitoring aviation oil moisture is achieved, and the oil trace moisture on-line monitoring sensor has the advantages of being small in size, light, simple in operation, and the like.
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Description

technical field

[0001] The invention relates to the technical field of online monitoring of oil, in particular to an online monitoring sensor for trace moisture in oil. Background technique

[0002] When aircraft oil (mainly lubricating oil, hydraulic oil, and fuel oil) is polluted by water, it will seriously affect the safety performance of flight, and may even cause serious accidents. Oil is like the "blood" of an aircraft. The health of the oil reflects the health of the aircraft to a certain extent. Therefore, real-time monitoring of the health of the oil is very important for real-time diagnosis and prediction of aircraft failures. The water content of the oil is one of the important parameters to evaluate whether the aircraft can work normally. The detection of the water content in the oil is very important. The test results can be provided to the aircraft PHM system, combined with other parameters, to evaluate the health of the aircraft and predict its life. . [00...

Claims

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