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Online oil liquid quality sensor

A sensor and oil technology, applied in the field of sensor detection, can solve problems such as difficulty in consistent detection cycle of test items, difficulty in longitudinal comparison of data, difficulty in obtaining aging trends, etc., and achieve the effect of facilitating oil quality management

Inactive Publication Date: 2016-07-27
BEIJING ZHIGAN SENSOR TECH RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method takes a long time, and the detection cycle of different detection items is difficult to be consistent, and the data obtained by different detection items is difficult to compare longitudinally, so it is difficult to obtain a global aging trend

Method used

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  • Online oil liquid quality sensor
  • Online oil liquid quality sensor

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Experimental program
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Embodiment

[0023] Such as figure 1 shown and figure 2 As shown, the online oil quality sensor in this embodiment includes a sensing device 10, and the lower end surface of the sensing device 10 is immersed in the oil in the oil circuit of the equipment to be tested. The sensing device 10 includes a first working electrode 31, a second working electrode 33 and a reference electrode 32; the first working electrode 31, the second working electrode 33 and the reference electrode 32 are respectively arranged on the lower end surface of the sensing device 10; the The surfaces of the first working electrode 31, the second working electrode 33 and the reference electrode 32 are provided with an insulating layer; the first working electrode 31 and the second working electrode 33 are symmetrically arranged on both sides of the reference electrode 32, respectively Form the first plane capacitor 11 and the second plane capacitor 12; the capacitance value of the first plane capacitor is marked as C...

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Abstract

The invention belongs to the technical field of sensing detection, and particularly relates to an online oil liquid quality sensor.The online oil liquid quality sensor comprises a sensor, the end face of the sensor is immersed in oil liquid of an equipment oil liquid loop to be detected, the sensor comprises a first working electrode, a second working electrode and a reference electrode which are arranged on the end face of the sensor, and the first working electrode and the second working electrode are symmetrically arranged at the two sides of the reference electrode to form a first planar capacitor and a second planar capacitor respectively.The sensor further comprises a magnet and an oil liquid quality calculating unit, wherein the magnet is arranged on the opposite side of the surface, making contact with the oil liquid, of the first planar capacitor, and the oil liquid quality calculating unit is used for obtaining the content of first relative ferromagnetic particles in the oil liquid according to detected capacitance values C1 and C2.

Description

technical field [0001] The invention belongs to the technical field of sensing and detection, and in particular relates to an online oil quality sensor. Background technique [0002] Lubricating oil and hydraulic oil are petrochemical oil products that have been used for a long time. As lubricating and hydraulic fluids cycle through more cycles, the fluids become contaminated by ferromagnetic particles from equipment wear and tear. In the middle and late stages of equipment wear, ferromagnetic particles are formed very quickly. If the oil pollution level is not known in time and the oil cleaning work or equipment shutdown and maintenance work is started accordingly, there will be problems caused by lubricating oil or hydraulic pressure. The risk of ferromagnetic particles re-entering the lubricating or working gap of the equipment along with the oil due to insufficient resting of the oil in the oil tank or saturation of the magnetic plug. Once the ferromagnetic particles e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06G01N27/22
CPCG01N15/0656G01N27/22
Inventor 詹姆斯·刘
Owner BEIJING ZHIGAN SENSOR TECH RES INST CO LTD