Lubricating oil cleanliness monitoring device based on multi-parameter bridge method

A monitoring device and bridge method technology, which is applied in the direction of measuring device, material capacitance, material analysis by electromagnetic means, etc., can solve the problems of limited and separate monitoring of metal particle pollutants or non-metal particle pollutants monitoring accuracy, etc. The effect of improving detection accuracy

Active Publication Date: 2021-08-31
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0005] In order to overcome the problem that the existing oil detection circuit can only monitor metal particle pollutants or non-metal particle pollutants alone and the monitoring accuracy is limited, the present invention provides a lubricating oil cleanliness monitoring device based on a multi-parameter bridge method

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  • Lubricating oil cleanliness monitoring device based on multi-parameter bridge method
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  • Lubricating oil cleanliness monitoring device based on multi-parameter bridge method

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Embodiment Construction

[0030] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...

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Abstract

The invention provides a lubricating oil cleanliness monitoring device based on a multi-parameter bridge method. The lubricating oil cleanliness monitoring device is used for detecting magnetic metal particle pollutants, non-magnetic metal particle pollutants and non-metal pollutants (water) in oil liquid such as hydraulic oil and lubricating oil. According to the device, an inductance detection method and a capacitance detection method are combined on the basis of the bridge principle, a capacitance bridge loop and an inductance bridge loop are balanced at the same time by adjusting the resistance values of the adjustable R1, the adjustable Rx and the adjustable R2, so that it is guaranteed that output voltages Ua and Ub are zero points when the detection capacitor C1 and the detection coil L1 in the sensing unit are in the initial state. When the magnetic metal particle pollutants and the non-magnetic metal particle pollutants pass through the detection coil L1, the output voltage Ub generates different fluctuations; and when non-metal pollutants (water) pass through the detection capacitor C1, the output voltage Ua fluctuates. According to the technical scheme, the problems that an existing oil liquid detection circuit can only monitor metal particle pollutants or non-metal particle pollutants independently, and the monitoring precision is limited are solved.

Description

technical field [0001] The invention relates to the technical field of lubricating oil cleanliness detection, in particular to a lubricating oil cleanliness monitoring device based on a multi-parameter bridge method. Background technique [0002] Lubricants are widely used in the automobile industry, shipbuilding, construction machinery, mining machinery, agricultural machinery, plastic machinery, metallurgical machinery, aviation and other industries. Hydraulic system components or other mechanical parts in various industries need lubricating oil to transmit power, lubricate, prevent corrosion, etc., to ensure their normal operation. However, the lubricating oil will be gradually polluted during the recycling process, so that the lubricating performance will decrease, and the wear and corrosion will increase, which will eventually lead to the failure of mechanical parts and mechanical failure. [0003] The pollutants of lubricating oil mainly include metal particles and no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/22G01N27/02
CPCG01N27/228G01N27/023
Inventor 张洪朋史皓天张雨薇谢雨财孙玉清陈海泉李伟
Owner DALIAN MARITIME UNIVERSITY
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