CN102243200A - On-line monitoring sensor of lubricating oil - Google Patents
On-line monitoring sensor of lubricating oil Download PDFInfo
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- CN102243200A CN102243200A CN 201110115458 CN201110115458A CN102243200A CN 102243200 A CN102243200 A CN 102243200A CN 201110115458 CN201110115458 CN 201110115458 CN 201110115458 A CN201110115458 A CN 201110115458A CN 102243200 A CN102243200 A CN 102243200A
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Abstract
本发明涉及一种润滑油的在线监测传感器，属于传感器领域。该传感器包括两个同心的平面线圈和四个接线柱，通过四个接线柱接线顺序的变化，实现电感型传感器及电容型传感器的转换，从而既能够检测润滑油中的铁磁性磨粒浓度，也可以监测油品的劣化程度。从而为机械设备的工况监测和故障诊断提供必要信息，建立根据设备状态的维修体制。
The invention relates to an online monitoring sensor for lubricating oil, which belongs to the field of sensors. The sensor includes two concentric planar coils and four binding posts. Through the change of the wiring sequence of the four binding posts, the conversion of the inductive sensor and the capacitive sensor can be realized, so that it can detect the concentration of ferromagnetic abrasive particles in the lubricating oil, It is also possible to monitor the degree of deterioration of the oil. In this way, necessary information can be provided for condition monitoring and fault diagnosis of mechanical equipment, and a maintenance system based on equipment status can be established.
Description
Technical field
The present invention relates to a kind of on-line monitoring sensor of lubricating oil, belong to the monitoring sensor field.
Background technology
Lubricating oil is plant equipment " blood ", and it plays sealing, lubricated, anti-attrition, cooling, cleaning, damping and vital role such as anticorrosion in plant equipment.The oil liquid monitoring technology be by analyze monitored machine with the performance change of lubricating oil and the wear particle situation of carrying, obtain the information of the lubricated and state of wear of machine, and then estimate the operating mode of machine and predict the technology of fault.
Oil liquid monitoring is divided into off-line monitoring and on-line monitoring, off-line monitoring is to gather oil sample at the scene, analyzes in the laboratory then, and analytical instrument commonly used has automatic particle collector, ferrograph, spectroanalysis instrument, precise electronic sky equality, this monitoring mode cycle is long, and apparatus expensive.On-line monitoring is by the sensor lubricating oil data of collecting device continuously or off and on, directly demonstrates the state of equipment fluid by the signal Processing transmission technology, has real-time characteristics.
For the on-line monitoring sensor, each company has developed the on-line monitoring sensor based on various principles such as optical Fiber Method, infrared method, ray method, image-recognizing methods both at home and abroad at present, but the most of complex structures of these on-line monitoring sensors cost an arm and a leg.Also have the monitoring sensor based on electrical method in addition, this sensor construction is simple, and cost is low, mainly comprises inductance type and capacitance type sensor.Wherein inductance type transducer is mainly used in the ferromagnetism abrasive particle that detects in the lubricating oil, and its primary structure is that helical is tubular.As the MetalSCAN sensor of Canadian GasTops company development, can measure the iron particle in the fluid.Capacitance type sensor is mainly used in the oil product degradation that detects lubricating oil, and its common structure is the pole plate type.Fluid moisture sensor as the research and development of Kavlico company can carry out semiquantitative analysis to moisture.Above-mentioned two class electric sensors can't satisfy whole demands in oil liquid monitoring field because of performance limitations can only detect oil product or abrasive particle in a certain respect.
Summary of the invention
The present invention proposes a kind of on-line monitoring sensor of lubricating oil, this sensor can detect the ferromagnetism wear particle concentration in the lubricating oil and the degradation of oil product simultaneously, thereby the lubricated and state of wear of monitoring equipment is better realized changing oil inspect and repair as necessary by matter.
The present invention adopts following technical scheme for solving its technical matters:
A kind of on-line monitoring sensor of lubricating oil comprises two concentric planar coils and four binding posts, it is characterized in that when from first binding post, when the 4th binding post is drawn wiring, coil just shows as capacitance characteristic; When from first binding post, the 3rd binding post or second binding post, when the 4th binding post is drawn wiring, coil just shows as single times of inductance characteristic; When second binding post, the 3rd binding post are communicated with, draw wiring from first binding post, the 4th binding post, coil just shows as 2 times of inductance characteristics.
Described concentric planar coil is circle, polygon or ellipse.
Described planar coil thickness be micron to mm-scale, the diameter of planar coil and live width and line-spacing be micron to mm-scale.
Beneficial effect of the present invention is as follows: the function of this sensor is integrated inductance and electric capacity, by follow-up circuit design, can detect the concentration of abrasive particle in the fluid and the rotten situation of fluid, thereby realize the foreseeability maintenance of machine and change oil the maintenance cost of saving machine by matter.Because this sensor is a planar structure, size to mm-scale, can be saved the volume of sensor at micron, alleviates the quality of sensor, has a wide range of applications at aviation field simultaneously.
Description of drawings
Fig. 1 is the planar coil construction figure of this sensor, and wherein 1,2,3,4 is binding post, and 5 is solenoid, and 6 is matrix.
Fig. 2 is that coil is the synoptic diagram of capacitive form sensor, draws wiring from 1,4 binding post.
Fig. 3 is that coil is the synoptic diagram of inductance form sensor, draws wiring from 1,3 binding post.
Fig. 4 is that coil is the synoptic diagram of inductance form sensor, and 2,3 binding posts are communicated with, and draw wiring from 1,4 binding post, and inductance value is the twice (two inductance series connection) among Fig. 3.
Embodiment
Below in conjunction with accompanying drawing the invention is described in further details.
As shown in Figure 1, a kind of on-line monitoring sensor of lubricating oil is made two concentric planar coils on matrix, the thickness of each coil be micron to mm-scale, the diameter of coil and live width and line-spacing are micron to mm-scale.Two planar coils pass through the variation of four binding post 1,2,3,4 orders of connection, realize the switching of inductive type sensor and capacitance type transducers.The inductive type sensor is used for the detection of fluid ferromagnetic particle, and capacitance type transducers is used for the detection of lubricating oil oil product; Thereby realize the detection of ferromagnetic particle in the fluid and the detection of lubricating oil oil product.The shape of ceoncentrically wound coil can be circular, polygon or ellipse etc.The matrix material of sensor can be selected copper-clad plate or other nonmetallic materials.On matrix material, make planar coil by technologies such as photoetching, corrosion or electro-deposition.This sensor can be installed in the oil pipe of oil circuit or in the fuel tank, as required single-point monitoring or form a monitoring network.
As shown in Figure 2, when when binding post 1,4 is drawn wiring, coil just shows capacitance characteristic.Because the specific inductive capacity of normal lubricating oil is about 2.0, and the specific inductive capacity of water is about 80.0, so if be mixed with water in the lubricating oil or owing to reasons such as oxidation produce remarkable deterioration, its specific inductive capacity will change, thereby make the electric capacity of sensor change.By back relevant detection circuit capacitance change is converted into voltage signal, thereby obtains the metamorphic grade of lubricating oil.
As shown in Figure 3, when when binding post 1,3 is drawn wiring, coil just shows as single times of inductance characteristic.When containing ferromagnetic particle in the lubricating oil, the relative permeability of coil magnetic circuit will change, and the variable quantity of magnetic permeability is relevant with the concentration of particle.The variation of magnetic permeability causes the inductance of coil to change, and by follow-up circuit the inductance variable quantity is converted into voltage signal, thereby obtains the content of ferromagnetic particle in the oil.
As shown in Figure 4, when binding post 2,3 is communicated with, draw wiring from binding post 1,4, sensor just becomes the inductance sensor that is together in series by two planar inductors, and coil just shows as 2 times of inductance characteristics.
Can be according to different needs, the wiring of binding post changes during by sensor installation, selects the inductance capacitance function of this sensor.Also can use other controllers such as single-chip microcomputer, DSP, use the method for making software, periodically realize the switching of binding post, thereby make sensor sheet reveal different characteristics.
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| CN 201110115458 CN102243200A (en) | 2011-05-05 | 2011-05-05 | On-line monitoring sensor of lubricating oil |
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| CN 201110115458 CN102243200A (en) | 2011-05-05 | 2011-05-05 | On-line monitoring sensor of lubricating oil |
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Cited By (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519851A (en) * | 2011-12-29 | 2012-06-27 | 吴望东 | Capacitor type on-line iron spectrum detector |
| CN103674787A (en) * | 2013-11-27 | 2014-03-26 | 上海交通大学 | Miniaturized integration induction type on-line monitoring sensor for slide oil grains |
| CN104114998A (en) * | 2012-02-17 | 2014-10-22 | 纳博特斯克有限公司 | Lubricating oil deterioration sensor and machine provided with same |
| CN104132970A (en) * | 2014-08-06 | 2014-11-05 | 北京华安广通科技发展有限公司 | High-precision sensor for detecting ferromagnetic particles in lubricating oil |
| CN104390893A (en) * | 2014-11-24 | 2015-03-04 | 电子科技大学 | Oil mill grain sensor based on printed coil |
| WO2016083839A1 (en) * | 2014-11-28 | 2016-06-02 | Parker Hannifin Manufacturing Limited | Sensor apparatus |
| CN105806760A (en) * | 2016-05-19 | 2016-07-27 | 北京至感传感器技术研究院有限公司 | Online oil liquid quality sensor |
| CN105823711A (en) * | 2016-04-18 | 2016-08-03 | 上海电机学院 | Online monitoring method for oil abrasive particles |
| CN105866197A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Wear particle online monitoring device using filtering, centrifuge and adjacent capacitance |
| CN105865986A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Oil monitoring equipment based on full-band variable-structure working condition adaptive filtering and molding |
| CN105865987A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Method for monitoring oil by means of full-frequency-band variable-structure filtering, adsorbing and molding |
| CN105866198A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Wear particle online monitoring device using filtering, centrifuge and adjacent capacitance |
| CN105865984A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Oil monitoring method based on full-band variable-structure working condition adaptive filtering and molding |
| CN105891275A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Wear particle monitoring device adopting temperature control, cyclone centrifugation and adjacent capacitance |
| CN105891277A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Wear particle monitoring system adopting filtering, centrifugalization and adjacent capacitance |
| CN105891061A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Liquid oil monitoring device adopting full-band and variable-structure filtering, absorbing and shaping |
| CN105891058A (en) * | 2016-05-12 | 2016-08-24 | 李伟波 | Double-coil oil liquid monitoring method using full-band filtering, separating and shaping |
| CN105928844A (en) * | 2016-05-12 | 2016-09-07 | 绍兴文理学院 | Double-coil oil liquid monitoring equipment adopting wave suppression, separation and shaping |
| CN105973949A (en) * | 2016-05-12 | 2016-09-28 | 绍兴文理学院 | System for monitoring wear particles on line by virtue of hydraulic filtration, centrifugation and adjacent capacitance |
| CN105973763A (en) * | 2016-05-12 | 2016-09-28 | 绍兴文理学院 | Liquid oil monitoring device adopting full-frequency-band-working-condition adaptive filtering, separating and molding |
| CN106018192A (en) * | 2016-05-12 | 2016-10-12 | 绍兴文理学院 | Double-coil oil monitoring method with wave suppression, separation and molding |
| CN106018191A (en) * | 2016-05-12 | 2016-10-12 | 李伟波 | Double-excitation solenoid type particle detection method achieved through full-frequency-band work condition self-adaptive filtering |
| CN106018217A (en) * | 2016-05-12 | 2016-10-12 | 李伟波 | Double-exciting solenoid type particle sensitive method with wave suppression |
| CN106018189A (en) * | 2016-05-12 | 2016-10-12 | 李伟波 | Particle sensitivity detection method using full-band variable-structure working condition adaptive filtering |
| CN106018190A (en) * | 2016-05-12 | 2016-10-12 | 绍兴文理学院 | Oil monitoring method using full-band working condition adaptive filtering, separation and shaping |
| CN106093146A (en) * | 2016-08-29 | 2016-11-09 | 大连海事大学 | A kind of capacitive reactance formula oil liquid detection system and preparation method thereof |
| CN106383146A (en) * | 2016-08-29 | 2017-02-08 | 大连海事大学 | An inductive oil detection system and its manufacturing method |
| CN109115844A (en) * | 2018-08-29 | 2019-01-01 | 大连海事大学 | High-sensitivity hydraulic oil liquid detection device and manufacturing method thereof |
| CN109813771A (en) * | 2019-03-14 | 2019-05-28 | 大连海事大学 | Magnetic capacitor ferromagnetic abrasive particle detection sensor and manufacturing method thereof |
| CN110031373A (en) * | 2019-05-17 | 2019-07-19 | 大连海事大学 | Multi-signal synchronous feedback device for oil detection |
| CN113405933A (en) * | 2021-06-18 | 2021-09-17 | 北京格谱检测科技有限公司 | Oil abrasive particle analyzer |
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| CN102519851A (en) * | 2011-12-29 | 2012-06-27 | 吴望东 | Capacitor type on-line iron spectrum detector |
| CN104114998A (en) * | 2012-02-17 | 2014-10-22 | 纳博特斯克有限公司 | Lubricating oil deterioration sensor and machine provided with same |
| CN103674787A (en) * | 2013-11-27 | 2014-03-26 | 上海交通大学 | Miniaturized integration induction type on-line monitoring sensor for slide oil grains |
| CN103674787B (en) * | 2013-11-27 | 2016-06-01 | 上海交通大学 | The induction type lubricating oil abrasive particle on-line monitoring sensor that miniatureization is integrated |
| CN104132970B (en) * | 2014-08-06 | 2016-08-17 | 北京远瑞科技有限公司 | Ferromagnetic particle detection sensor in lubricating oil in high precision |
| CN104132970A (en) * | 2014-08-06 | 2014-11-05 | 北京华安广通科技发展有限公司 | High-precision sensor for detecting ferromagnetic particles in lubricating oil |
| CN104390893A (en) * | 2014-11-24 | 2015-03-04 | 电子科技大学 | Oil mill grain sensor based on printed coil |
| WO2016083839A1 (en) * | 2014-11-28 | 2016-06-02 | Parker Hannifin Manufacturing Limited | Sensor apparatus |
| GB2548746A (en) * | 2014-11-28 | 2017-09-27 | Parker Hannifin Ltd | Sensor apparatus |
| CN105823711A (en) * | 2016-04-18 | 2016-08-03 | 上海电机学院 | Online monitoring method for oil abrasive particles |
| CN105891058A (en) * | 2016-05-12 | 2016-08-24 | 李伟波 | Double-coil oil liquid monitoring method using full-band filtering, separating and shaping |
| CN106018191A (en) * | 2016-05-12 | 2016-10-12 | 李伟波 | Double-excitation solenoid type particle detection method achieved through full-frequency-band work condition self-adaptive filtering |
| CN105865987A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Method for monitoring oil by means of full-frequency-band variable-structure filtering, adsorbing and molding |
| CN105866198A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Wear particle online monitoring device using filtering, centrifuge and adjacent capacitance |
| CN105865984A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Oil monitoring method based on full-band variable-structure working condition adaptive filtering and molding |
| CN105891275A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Wear particle monitoring device adopting temperature control, cyclone centrifugation and adjacent capacitance |
| CN105891277A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Wear particle monitoring system adopting filtering, centrifugalization and adjacent capacitance |
| CN105891061A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Liquid oil monitoring device adopting full-band and variable-structure filtering, absorbing and shaping |
| CN105866197A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Wear particle online monitoring device using filtering, centrifuge and adjacent capacitance |
| CN105928844A (en) * | 2016-05-12 | 2016-09-07 | 绍兴文理学院 | Double-coil oil liquid monitoring equipment adopting wave suppression, separation and shaping |
| CN105973949A (en) * | 2016-05-12 | 2016-09-28 | 绍兴文理学院 | System for monitoring wear particles on line by virtue of hydraulic filtration, centrifugation and adjacent capacitance |
| CN105973763A (en) * | 2016-05-12 | 2016-09-28 | 绍兴文理学院 | Liquid oil monitoring device adopting full-frequency-band-working-condition adaptive filtering, separating and molding |
| CN106018192A (en) * | 2016-05-12 | 2016-10-12 | 绍兴文理学院 | Double-coil oil monitoring method with wave suppression, separation and molding |
| CN105865986A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Oil monitoring equipment based on full-band variable-structure working condition adaptive filtering and molding |
| CN106018217A (en) * | 2016-05-12 | 2016-10-12 | 李伟波 | Double-exciting solenoid type particle sensitive method with wave suppression |
| CN106018189A (en) * | 2016-05-12 | 2016-10-12 | 李伟波 | Particle sensitivity detection method using full-band variable-structure working condition adaptive filtering |
| CN106018190A (en) * | 2016-05-12 | 2016-10-12 | 绍兴文理学院 | Oil monitoring method using full-band working condition adaptive filtering, separation and shaping |
| CN105806760A (en) * | 2016-05-19 | 2016-07-27 | 北京至感传感器技术研究院有限公司 | Online oil liquid quality sensor |
| CN106093146A (en) * | 2016-08-29 | 2016-11-09 | 大连海事大学 | A kind of capacitive reactance formula oil liquid detection system and preparation method thereof |
| CN106383146A (en) * | 2016-08-29 | 2017-02-08 | 大连海事大学 | An inductive oil detection system and its manufacturing method |
| CN106093146B (en) * | 2016-08-29 | 2019-01-18 | 大连海事大学 | A kind of capacitive reactance formula oil liquid detection system and preparation method thereof |
| CN106383146B (en) * | 2016-08-29 | 2019-02-12 | 大连海事大学 | A kind of inductive reactance oil detection system and its making method |
| CN109115844A (en) * | 2018-08-29 | 2019-01-01 | 大连海事大学 | High-sensitivity hydraulic oil liquid detection device and manufacturing method thereof |
| CN109115844B (en) * | 2018-08-29 | 2021-03-19 | 大连海事大学 | High-sensitivity hydraulic oil detection device and manufacturing method thereof |
| CN109813771A (en) * | 2019-03-14 | 2019-05-28 | 大连海事大学 | Magnetic capacitor ferromagnetic abrasive particle detection sensor and manufacturing method thereof |
| CN110031373A (en) * | 2019-05-17 | 2019-07-19 | 大连海事大学 | Multi-signal synchronous feedback device for oil detection |
| CN113405933A (en) * | 2021-06-18 | 2021-09-17 | 北京格谱检测科技有限公司 | Oil abrasive particle analyzer |
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Application publication date: 20111116 |