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Device for rapidly detecting ferromagnetic grain in lubricating oil, detection method and signal processing circuit

A detection method and technology of detection device, which are applied in the direction of measurement device, particle suspension analysis, suspension and porous material analysis, etc., to achieve the effects of high linearity, low components, and excellent wear debris performance.

Inactive Publication Date: 2012-08-01
SHENZHEN YATEKS OPTICAL ELECTRONICS TECH CO LTD
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Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the detection method of iron abrasive particles in lubricating oil in the prior art, the present invention provides a detection method and device that is simple, feasible, fast in analysis speed and low in cost, and solves the above technical problems

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  • Device for rapidly detecting ferromagnetic grain in lubricating oil, detection method and signal processing circuit
  • Device for rapidly detecting ferromagnetic grain in lubricating oil, detection method and signal processing circuit
  • Device for rapidly detecting ferromagnetic grain in lubricating oil, detection method and signal processing circuit

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Embodiment Construction

[0032] This embodiment is a preferred implementation mode of the present invention, and other principles and basic structures that are the same or similar to this embodiment are within the protection scope of the present invention.

[0033] Please see attached figure 1 , main part of the present invention is an excitation coil 2, produces an alternating magnetic field by the excitation coil 2, and in the present embodiment, a magnetic core is in the middle of the excitation coil 2, and the magnetic core adopts a columnar iron core (the core material can be selected from plugged steel and other materials) coils are wound on the magnetic core to form the exciting coil 2. When the alternating current is passed into the exciting coil, the exciting coil 2 will generate an alternating magnetic field. As an alternating current, the exciting coil 2 generates an alternating magnetic field with a frequency of 1KHz-5KHz. Two coils are provided at equal distances from both ends of the ex...

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Abstract

The invention discloses a method for rapidly detecting ferromagnetic grain content in lubricating oil and a detection device thereof as well as a signal processing circuit. A transformer type electromagnetic sensor is adopted, and variation of related parameters of the electromagnetic sensor which is caused by variation of field distribution due to ferromagnetic grain in lubricating oil is detected, so as to detect ferromagnetic substance content in lubricating oil. Influence of nonferromagnetic pollutant can be naturally eliminated, higher linearity can be realized, meanwhile cost is low, and real time property is good.

Description

technical field [0001] The invention discloses an iron element detection method, a detection device and a signal processing circuit, in particular a device, a detection method and a signal processing circuit for rapidly detecting ferromagnetic abrasive grains in lubricating oil. Background technique [0002] The mechanical power parts in the prior art are mainly made of iron materials, and in use, these parts often need to have higher mechanical properties than ordinary parts. At present, this performance is mainly through the material It is obtained by surface treatment, so there is a phenomenon that the surface of the part is often denser, the hardness is relatively high, the wear resistance is good, the carbon content, and the specific gravity of iron oxide are large; The particles are relatively large, the material is relatively soft, the wear resistance is poor, and the content of carbon and iron oxides is low, while the specific gravity of iron is gradually increasing,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06
Inventor 郑翔陆丕清蔡宇恒马天悦林少明
Owner SHENZHEN YATEKS OPTICAL ELECTRONICS TECH CO LTD
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