CN102323190B - Planar inductive wear particle monitoring device and measuring unit thereof - Google Patents
Planar inductive wear particle monitoring device and measuring unit thereof Download PDFInfo
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- CN102323190B CN102323190B CN201110140931.8A CN201110140931A CN102323190B CN 102323190 B CN102323190 B CN 102323190B CN 201110140931 A CN201110140931 A CN 201110140931A CN 102323190 B CN102323190 B CN 102323190B
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- planar inductor
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- monitoring device
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Abstract
The invention discloses a planar inductive wear particle monitoring device and a measuring unit thereof. The device comprises the measuring unit and an analysis module. The measuring unit comprises a planar inductor and a cavity, wherein taps at both ends of an inductance coil are connected with the analysis module; the cavity is used for liquid to be tested to flow through; and the inductance coil of the planar inductor is used as one part of the inner wall of the cavity. When the planar inductive wear particle monitoring device provided by the invention is applied to monitor wear particles in oil or other liquid to be tested, the cavity is used as a flow passage of the fluid to be tested; and due to the direction contact between the liquid to be tested and the inductance coil of the planar inductor, a theoretical space between the liquid to be tested and the inductance coil of the planar inductor is 0, so that the wear particles in the liquid to be tested can be passed through by more magnetic force lines and an insulated conductor has larger inductance change, and thus, the monitoring sensitivity is greatly improved. The planar inductive wear particle monitoring device and the measuring unit thereof have important significance in monitoring and diagnosing a fault of machine equipment.
Description
Technical field
The invention belongs to oil liquid monitoring technical field, relate in particular to a kind of planar inductor formula abrasive grain monitoring device and measuring unit thereof.
Background technology
All kinds of machinery and equipment are in operational process; will inevitably produce the wear particle being suspended in lubricating system fluid; large wear particle can cause the badly damaged of equipment at short notice; wear particle is the important information carrier of device interior state of wear; therefore, safe and reliable operation and the personal safety important in inhibiting of the situation of wear particle to equipment in grasp fluid promptly and accurately.
For this reason, prior art provides a kind of planar inductor formula abrasive grain monitoring device, it is by monitoring the wear particle in the oil product of lubricating oil or other plant equipment, and equipment is played to the effect of initiative preventative maintenance, prevent inefficacy and the fault of equipment, be widely applied to the field such as engineering and traffic machinery.
The planar inductor formula abrasive grain monitoring device that prior art provides comprises measuring unit and analysis module.Measuring unit wherein comprises again cavity and the planar inductor flowing through for testing liquid, is provided with a dividing plate between planar inductor and cavity.In the time that this planar inductor formula abrasive grain monitoring device of application detects fluid, fluid to be measured flows through cavity.In the time that the wear particle in fluid to be measured passes through planar inductor, the inductance value of telefault will be changed, ferromagnetism wear particle increases the inductance value of telefault, and nonferromagnetic wear particle reduces the inductance value of telefault, analysis module, by the detection to telefault inductance value, can carry out to the wear particle in fluid the detection of quantitative and qualitative analysis.
In theory, the thickness of dividing plate is less or cavity is narrower, and the wear particle of flowing through and the distance of telefault are nearer, and detection sensitivity is higher.But owing to being subject to the restriction of manufacturing process and the strength of materials, it is too thin that the thickness of dividing plate can not be made, between telefault and wear particle to be measured, there is all the time larger distance, and then make the sensitivity of the planar inductor formula abrasive grain monitoring device that prior art provides low.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of planar inductor formula abrasive grain monitoring device, the planar inductor formula abrasive grain monitoring device providing with solution prior art is because dividing plate exists thickness, make the larger distance of existence between telefault and wear particle to be measured, the problem that sensitivity is low.
The embodiment of the present invention is achieved in that a kind of planar inductor formula abrasive grain monitoring device, and described device comprises measuring unit and analysis module, and described measuring unit comprises:
Planar inductor, the two ends tap of the telefault of described planar inductor connects described analysis module;
The cavity flowing through for testing liquid, the telefault of described planar inductor is as a part for the inwall of described cavity.
In above-mentioned planar inductor formula abrasive grain monitoring device, described cavity can be to be made up of insulation injection molded material.
In above-mentioned planar inductor formula abrasive grain monitoring device, described insulation injection molded material can be poly-dimethoxy silane or polymethylmethacrylate.
The present invention also provides a kind of measuring unit of planar inductor formula abrasive grain monitoring device, and described measuring unit comprises:
Planar inductor, the two ends tap of the telefault of described planar inductor connects described analysis module;
The cavity flowing through for testing liquid, the telefault of described planar inductor is as a part for the inwall of described cavity.
In above-mentioned measuring unit, described cavity can be to be made up of insulation injection molded material.
In above-mentioned measuring unit, described insulation injection molded material can be dimethyl silicone polymer or polymethylmethacrylate.
The present invention also provides a kind of method for making of measuring unit of planar inductor formula abrasive grain monitoring device as above, said method comprising the steps of:
One planar inductor and a thin axle are fixed in a mould in turn;
Inject liquid insulation injection molded material to described mould, and by liquid insulation injection molded material curing molding in described mould;
Described mould and thin axle are separated to a part for the cavity that the telefault of described planar inductor forms as described thin axle with the described insulation injection molded material after curing molding.
In above-mentioned method, described insulation injection molded material can be dimethyl silicone polymer or polymethylmethacrylate.
In the time that application planar inductor formula abrasive grain monitoring device provided by the invention is monitored the wear particle in fluid or other testing liquid, cavity is as the runner of testing liquid, now, because testing liquid directly contacts with the telefault of planar inductor, theoretical pitch is therebetween 0.Compared with the planar inductor formula abrasive grain monitoring device providing with prior art, wear particle in testing liquid can be passed through by the more magnetic line of force, the inductance value of insulated conductor changes larger, thereby the sensitivity that has greatly improved monitoring, has great significance to the fault detection and diagnosis of machinery and equipment.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of planar inductor formula abrasive grain monitoring device provided by the invention;
Fig. 2 is the method for making process flow diagram of measuring unit in planar inductor formula abrasive grain monitoring device provided by the invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
Fig. 2 shows the principle of planar inductor formula abrasive grain monitoring device provided by the invention, for convenience of explanation, only shows part related to the present invention.
Planar inductor formula abrasive grain monitoring device provided by the invention comprises measuring unit and analysis module (not shown), measuring unit wherein further comprises: planar inductor 11, the two ends tap linking parsing module of the telefault of planar inductor 12; The cavity 12 flowing through for testing liquid, the telefault of planar inductor 12 is as a part for the inwall of cavity 12.Testing liquid is wherein preferably lubricating oil.
In the time that application planar inductor formula abrasive grain monitoring device provided by the invention is monitored the wear particle in fluid or other testing liquid, cavity 12 is as the runner of testing liquid, now, because testing liquid directly contacts with the telefault of planar inductor 12, theoretical pitch is therebetween 0.Compared with the planar inductor formula abrasive grain monitoring device providing with prior art, wear particle in testing liquid can be passed through by the more magnetic line of force, the inductance value of insulated conductor changes larger, thereby greatly improve the sensitivity of monitoring, and can detect micron order wear particle in testing liquid, the malfunction monitoring to machinery and equipment and fault diagnosis important in inhibiting.
Wherein, cavity 12 can be to be made up of dimethyl silicone polymer (PDMS) or polymethylmethacrylate (PMMA), certainly, can also be to be made up of existing other insulation injection molded material; Testing liquid is wherein preferably lubricating oil.
The present invention also provides a kind of measuring unit of planar inductor formula abrasive grain monitoring device as above.
Fig. 2 shows the method for making flow process of measuring unit in planar inductor formula abrasive grain monitoring device provided by the invention.
In step S101, a planar inductor and a thin axle are fixed in a mould in turn, the diameter of this thin axle depends on the flow diameter of designed testing liquid.
In step S102, inject liquid insulation injection molded material to this mould, and by modes such as heating, by liquid insulation injection molded material curing molding in mould.Liquid state insulation injection molded material is wherein preferably dimethyl silicone polymer (PDMS) or polymethylmethacrylate (PMMA).
In step S103, mould and thin axle are separated with the insulation injection molded material after curing molding, now, the telefault of planar inductor is using a part for the inwall of the cavity forming as this thin axle, and this cavity becomes the runner of testing liquid.
Planar inductor wherein can be both the conventional planar chip inductor in market, also can be homemade film inductor, in the time that this planar inductor is homemade film inductor, the present invention is before step S101, can also comprise the following steps: telefault is arranged and is wound on a microslide by default figure (as: circular, square etc.), and this microslide that is wound with telefault is as planar inductor as above.
In the time that application planar inductor formula abrasive grain monitoring device provided by the invention is monitored the wear particle in fluid or other testing liquid, cavity 12 is as the runner of testing liquid, now, because testing liquid directly contacts with the telefault of planar inductor, theoretical pitch is therebetween 0.Compared with the planar inductor formula abrasive grain monitoring device providing with prior art, wear particle in testing liquid can be passed through by the more magnetic line of force, the inductance value of insulated conductor changes larger, thereby sensitivity, the malfunction monitoring to machinery and equipment and the fault diagnosis important in inhibiting of monitoring are greatly improved.
The above; it is only preferably embodiment of the present invention; but protection scope of the present invention is not limited to this; any be familiar with those skilled in the art the present invention disclose technical scope in; be equal to replacement or changed according to technical scheme of the present invention and inventive concept thereof, within all should being encompassed in protection scope of the present invention.
Claims (3)
1. a planar inductor formula abrasive grain monitoring device, is characterized in that, described device comprises measuring unit and analysis module, and described measuring unit comprises:
Planar inductor, the two ends tap of the telefault of described planar inductor connects described analysis module;
The cavity flowing through for testing liquid, the telefault of described planar inductor is as a part for the inwall of described cavity;
Described cavity is to be made up of insulation injection molded material;
Described insulation injection molded material is dimethyl silicone polymer or polymethylmethacrylate.
2. a measuring unit for planar inductor formula abrasive grain monitoring device, is characterized in that, described magnetic test coil comprises:
Planar inductor, the two ends tap of the telefault of described planar inductor connects described analysis module;
The cavity flowing through for testing liquid, the telefault of described planar inductor is as a part for the inwall of described cavity;
Described cavity is to be made up of insulation injection molded material;
Described insulation injection molded material is dimethyl silicone polymer or polymethylmethacrylate.
3. a method for making for the measuring unit of planar inductor formula abrasive grain monitoring device as claimed in claim 2, is characterized in that, said method comprising the steps of:
One planar inductor and a thin axle are fixed in a mould in turn;
Inject liquid insulation injection molded material to described mould, and by liquid insulation injection molded material curing molding in described mould;
Described mould and thin axle are separated to a part for the cavity that the telefault of described planar inductor forms as described thin axle with the described insulation injection molded material after curing molding;
Described insulation injection molded material is dimethyl silicone polymer or polymethylmethacrylate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110140931.8A CN102323190B (en) | 2011-05-27 | 2011-05-27 | Planar inductive wear particle monitoring device and measuring unit thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110140931.8A CN102323190B (en) | 2011-05-27 | 2011-05-27 | Planar inductive wear particle monitoring device and measuring unit thereof |
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| CN102323190A CN102323190A (en) | 2012-01-18 |
| CN102323190B true CN102323190B (en) | 2014-06-18 |
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| CN201110140931.8A Active CN102323190B (en) | 2011-05-27 | 2011-05-27 | Planar inductive wear particle monitoring device and measuring unit thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105927613A (en) * | 2016-05-12 | 2016-09-07 | 张国云 | Wear particle online monitoring method adopting electric control ring adsorption and adjacent capacitance |
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| CN2148961Y (en) * | 1993-02-23 | 1993-12-08 | 国家医药管理局天津药物研究院 | Analyzer for powder basic physical properties |
| US6124142A (en) * | 1995-02-14 | 2000-09-26 | Seiko Instruments, Inc. | Method for analyzing minute foreign substance elements |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7948346B2 (en) * | 2008-06-30 | 2011-05-24 | Alpha & Omega Semiconductor, Ltd | Planar grooved power inductor structure and method |
| CN202101968U (en) * | 2011-05-27 | 2012-01-04 | 张洪朋 | Plane inductance type abraded particle monitoring device and measuring unit thereof |
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|---|---|---|---|---|
| CN2148961Y (en) * | 1993-02-23 | 1993-12-08 | 国家医药管理局天津药物研究院 | Analyzer for powder basic physical properties |
| US6124142A (en) * | 1995-02-14 | 2000-09-26 | Seiko Instruments, Inc. | Method for analyzing minute foreign substance elements |
| CN201066524Y (en) * | 2007-08-28 | 2008-05-28 | 英国阿波罗防火探测器有限责任公司 | A cavity structure for fire photoelectricity inductance smoke detector |
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