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Oil pollutant multi-parameter integrated detecting device and method based on phase shifting technology

A detection device and technology for pollutants, which are applied in the fields of inductive detection of oil pollutants and signal processing of oil pollutant detection, can solve the problem of inability to distinguish and detect ferromagnetic metal particles and non-ferromagnetic metal particles, and can not meet the needs of practical detection applications. , It is impossible to distinguish problems such as detection of air pollutants and moisture pollutants, so as to achieve reliable detection results, meet the needs of detection applications, and reduce detection costs.

Pending Publication Date: 2019-11-08
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

The above methods can only distinguish and detect one or two known oil pollutants, which cannot meet the actual detection application requirements
For example, the inductance detection method has the advantage of distinguishing between ferromagnetic metal particles and non-ferromagnetic metal particles, but cannot distinguish between air pollutants and water pollutants; capacitance detection has the advantage of distinguishing between air pollutants and water pollutants, but cannot distinguish Ferromagnetic metal particles and non-ferromagnetic metal particles

Method used

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  • Oil pollutant multi-parameter integrated detecting device and method based on phase shifting technology
  • Oil pollutant multi-parameter integrated detecting device and method based on phase shifting technology
  • Oil pollutant multi-parameter integrated detecting device and method based on phase shifting technology

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Embodiment 1

[0043] Such as figure 1 As shown, the present invention provides a multi-parameter integrated detection device for oil pollutants based on phase-shifting technology, including a power unit A, a multi-parameter integrated detection chip B, and an oil pollutant processing unit C based on phase-shifting technology , display unit D, wherein:

[0044] The power unit A is a micro-injection pump (model: HARVARD 70-2212), which drives the oil pollutants to be tested to pass through the multi-parameter integrated detection chip B.

[0045] Such as figure 2 As shown, the multi-parameter integrated detection chip B includes a glass substrate 1 and a PDMS substrate 2; the PDMS substrate 2 includes a connected oil inlet 4, an oil channel 3 and an oil outlet 5, and the oil channel 3 is provided with a sensor unit 6 .

[0046] Such as image 3 and Figure 4 As shown, the sensor unit 6 includes an inductance sensor 7 and a capacitance sensor 8; the inductance sensor 7 is a series circui...

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Abstract

The invention relates to an oil pollutant multi-parameter integrated detecting device and method based on the phase shifting technology. In the prior art, unknown oil pollutants cannot be distinguished or detected, only one or two known oil pollutants can be distinguished and detected, and the actual detection and application requirements cannot be met. The inductance detection and capacitance detection can be conducted on each known oil pollutant at the same time, an inductance output curve corresponding to inductance output signals and a capacitance output curve corresponding to capacitanceoutput signals of each pollutant are obtained, and the known oil pollutants can be distinguished, detected and counted by comprehensively analyzing the inductance output curves and the capacitance output curves of the pollutants. An inductance detection object and a capacitance detection object are the same, and the inductance detection and capacitance detection can be conducted at the same time without time difference. The oil pollutant detection cost is reduced, the detecting device is simple, the detecting result is reliable, and the actual detection and application requirements are met.

Description

technical field [0001] The invention relates to the field of inductance detection of oil pollutants, to the field of capacitive detection of oil pollutants, to the field of signal processing of oil pollutant detection, and in particular to a multi-parameter integrated detection device for oil pollutants based on phase-shifting technology and method. Background technique [0002] Hydraulic oil is an important working fluid of the hydraulic system, and the quality of the oil is directly related to the working state of the hydraulic system. On-line detection of main pollutants in hydraulic oil can realize fault prevention and diagnosis of mechanical equipment, thereby prolonging the life of mechanical equipment and saving economic costs. The pollutants in the hydraulic oil mainly come from the residual impurities in the manufacturing process of the hydraulic system, the pollutants generated by the friction of the components during the operation of the system, and the external ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/22
CPCG01N27/22
Inventor 刘志坚刘连坤苑海超王成法高跃峰于可真潘新祥
Owner DALIAN MARITIME UNIVERSITY
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