CN108120487A - A kind of compensation method of lubricating oil oil mass on-line measurement - Google Patents
A kind of compensation method of lubricating oil oil mass on-line measurement Download PDFInfo
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- CN108120487A CN108120487A CN201711311164.6A CN201711311164A CN108120487A CN 108120487 A CN108120487 A CN 108120487A CN 201711311164 A CN201711311164 A CN 201711311164A CN 108120487 A CN108120487 A CN 108120487A
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- lubricating oil
- oil
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- line measurement
- sensor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of compensation methodes of lubricating oil oil mass on-line measurement.The compensation method of the lubricating oil oil mass on-line measurement includes the following steps：Step 1：Permittivity compensation capacitance U is gathered by sensorKWith the output signal U of effective measurement part；Step 2：Obtain lubricating oil dielectric constant in fuel tank；Step 3：Pass through the parameter acquiring sensor immersion oil height voltage signal U of the step 1 and the step 2H.The compensation method of the lubricating oil oil mass on-line measurement of the application can measure the variation of the dielectric constant of lubricating oil medium caused by temperature and lubricating oil quality comparison, and the variable signal of dielectric constant is exported to signal conversion part point, realize the oil mass to the compensation because causing lubricating oil change in dielectric constant during temperature change, accurately measurement lubricating oil of entire sensor.
Description
Technical field
The present invention relates to motor oil oil mass monitoring technical field, more particularly to a kind of lubricating oil oil mass on-line measurement
Compensation method.
Background technology
With the requirement of domestic transport captain endurance, new want is proposed to the long endurance high reliable of large-bypass-ratio engine
It asks, the on-line monitoring of lubricating oil oil mass is imperative.For a long time, the lubricating oil oil mass of aero-engine is due to being subject to lubricating oil to use temperature
The lubricating oil quality that degree scope is big, lubricating oil recycles and air-fuel mixture is brought changes big constraint, makes motor oil online
It is larger to measure difficulty, country's big-block engine lubricating oil oil mass all fails to realize on-line monitoring always at present.It can only stop in engine
The vernier scale in oil tank is checked after vehicle to judge lubricating oil oil mass and consumption.
The prior art devises some sensors realizes on-line monitoring substantially, but effect is still undesirable, far can not
Meet required precision of the Modern Engine to lubricating oil on-line measurement.
Thus, it is desirable to have a kind of technical solution is come at least one drawbacks described above for overcoming or at least mitigating the prior art.
The content of the invention
It is existing to overcome or at least mitigate it is an object of the invention to provide a kind of compensation method of lubricating oil oil mass on-line measurement
There is at least one drawbacks described above of technology.
To achieve the above object, the present invention provides a kind of compensation method of lubricating oil oil mass on-line measurement, the lubricating oil oil mass
The compensation method of on-line measurement includes the following steps：
Step 1：Permittivity compensation capacitance U is gathered by sensorKWith the output signal U of effective measurement part；
Step 2：Obtain lubricating oil dielectric constant in fuel tank；
Step 3：Pass through the parameter acquiring sensor immersion oil height voltage signal U of the step 1 and the step 2H。
Preferably, the step 2 is obtained especially by equation below：
Wherein,
φK1,φK2For dielectric constant sensor outer tube, diameter of inner pipe；UkFor permittivity compensation portion voltage output valve；A
For constant；B is constant.
Preferably, the sensor immersion oil height voltage signal UHIt is obtained using equation below：
Wherein,
A1、B1、A2、B2For constant；UkFor permittivity compensation portion voltage output valve；U is the corresponding C/V conversion of sensor
Output.
The compensation method of the lubricating oil oil mass on-line measurement of the application can be measured caused by temperature and lubricating oil quality comparison
The variation of the dielectric constant of lubricating oil medium, and the variable signal of dielectric constant is exported to signal conversion part point, realize entire pass
The oil mass to the compensation because causing lubricating oil change in dielectric constant during temperature change, accurately measurement lubricating oil of sensor.
Description of the drawings
Fig. 1 is the flow diagram of the compensation method of the lubricating oil oil mass on-line measurement of the application first embodiment.
Specific embodiment
To make the purpose, technical scheme and advantage that the present invention is implemented clearer, below in conjunction in the embodiment of the present invention
Attached drawing, the technical solution in the embodiment of the present invention is further described in more detail.In the accompanying drawings, identical from beginning to end or class
As label represent same or similar element or there is same or like element.Described embodiment is the present invention
Part of the embodiment, instead of all the embodiments.The embodiments described below with reference to the accompanying drawings are exemplary, it is intended to use
It is of the invention in explaining, and be not considered as limiting the invention.Based on the embodiments of the present invention, ordinary skill people
Member's all other embodiments obtained without creative efforts, belong to the scope of protection of the invention.Under
Face is described in detail the embodiment of the present invention with reference to attached drawing.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear",
The orientation or position relationship of the instructions such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on attached drawing institutes
The orientation or position relationship shown is for only for ease of the description present invention and simplifies description rather than instruction or imply signified dress
It puts or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that the present invention is protected
The limitation of scope.
Fig. 1 is the flow diagram of the compensation method of the lubricating oil oil mass on-line measurement of the application first embodiment.
The compensation method of lubricating oil oil mass on-line measurement as shown in Figure 1 includes the following steps：
Step 1：Permittivity compensation capacitance U is gathered by sensorKWith the output signal U of effective measurement part；
Step 2：Obtain lubricating oil dielectric constant in fuel tank；
Step 3：Pass through the parameter acquiring sensor immersion oil height voltage signal U of the step 1 and the step 2H。
In the present embodiment, the step 2 is obtained especially by equation below：
Wherein,
φK1,φK2For dielectric constant sensor outer tube, diameter of inner pipe；UkFor permittivity compensation portion voltage output valve；A
For constant；B is constant.
In the present embodiment, the sensor immersion oil height voltage signal UHIt is obtained using equation below：
Wherein,
A1、B1、A2、B2For constant；UkFor permittivity compensation portion voltage output valve；U is the corresponding C/V conversion of sensor
Output.
Wherein A1, B1, A2, B2 are constant, see formula (10)~(13)：
H --- liquid level sensor immersion oil height；
φ1,φ2--- liquid level sensor outer tube and diameter of inner pipe.
φK1,φK2--- dielectric constant sensor outer tube, diameter of inner pipe；
LK--- dielectric constant sensor effective length, i.e. inner tube length.
K --- lubricating oil dielectric constant values.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.To the greatest extent
Pipe is with reference to the foregoing embodiments described in detail the present invention, it will be understood by those of ordinary skill in the art that：It is still
It can modify to the technical solution recorded in foregoing embodiments or which part technical characteristic is equally replaced
It changes；And these modifications or replacement, the essence of appropriate technical solution is not made to depart from the essence of various embodiments of the present invention technical solution
God and scope.
Claims (3)
- A kind of 1. compensation method of lubricating oil oil mass on-line measurement, which is characterized in that the compensation side of the lubricating oil oil mass on-line measurement Method includes the following steps：Step 1：Permittivity compensation capacitance U is gathered by sensorKWith the output signal U of effective measurement part；Step 2：Obtain lubricating oil dielectric constant in fuel tank；Step 3：Pass through the parameter acquiring sensor immersion oil height voltage signal U of the step 1 and the step 2H。
- 2. the compensation method of lubricating oil oil mass on-line measurement as described in claim 1, which is characterized in that the step 2 is specifically logical Cross equation below acquisition：Wherein,φK1,φK2For dielectric constant sensor outer tube, diameter of inner pipe；UkFor permittivity compensation portion voltage output valve；A is normal Number；B is constant.
- 3. the compensation method of lubricating oil oil mass on-line measurement as described in claim 1, which is characterized in that the sensor immersion oil is high Spend voltage signal UHIt is obtained using equation below：Wherein,A1、B1、A2、B2For constant；UkFor permittivity compensation portion voltage output valve；U is defeated for the corresponding C/V conversion of sensor Go out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311164.6A CN108120487B (en) | 2017-12-11 | 2017-12-11 | Compensation method for online measurement of lubricating oil mass |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711311164.6A CN108120487B (en) | 2017-12-11 | 2017-12-11 | Compensation method for online measurement of lubricating oil mass |
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| CN108120487A true CN108120487A (en) | 2018-06-05 |
| CN108120487B CN108120487B (en) | 2020-12-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711311164.6A Active CN108120487B (en) | 2017-12-11 | 2017-12-11 | Compensation method for online measurement of lubricating oil mass |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357727A (en) * | 2018-10-31 | 2019-02-19 | 四川泛华航空仪表电器有限公司 | A kind of capacitance-type fuel quantity measuring system with permittivity compensation |
| CN110646061A (en) * | 2019-09-17 | 2020-01-03 | 高海 | Double-path redundant intelligent calibration radio frequency admittance anti-overflow liquid level meter and measurement method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130127156A1 (en) * | 2010-07-30 | 2013-05-23 | Endress + Hauser Gmbh + Co Kg | Apparatus and method for securing the connection of a coaxially arranged tube of a measuring probe unit of a fill-level measuring device to a process connection element |
| CN105387909A (en) * | 2015-11-01 | 2016-03-09 | 四川泛华航空仪表电器有限公司 | Voltage output type oil quantity transducer |
| CN106194738A (en) * | 2015-05-08 | 2016-12-07 | 丹佛斯（天津）有限公司 | Supervising device and monitoring method |
| CN106404112A (en) * | 2016-11-30 | 2017-02-15 | 南京高华科技股份有限公司 | Method and device for calibration-free measurement of capacitive liquid level sensor |
-
2017
- 2017-12-11 CN CN201711311164.6A patent/CN108120487B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130127156A1 (en) * | 2010-07-30 | 2013-05-23 | Endress + Hauser Gmbh + Co Kg | Apparatus and method for securing the connection of a coaxially arranged tube of a measuring probe unit of a fill-level measuring device to a process connection element |
| CN106194738A (en) * | 2015-05-08 | 2016-12-07 | 丹佛斯（天津）有限公司 | Supervising device and monitoring method |
| CN105387909A (en) * | 2015-11-01 | 2016-03-09 | 四川泛华航空仪表电器有限公司 | Voltage output type oil quantity transducer |
| CN106404112A (en) * | 2016-11-30 | 2017-02-15 | 南京高华科技股份有限公司 | Method and device for calibration-free measurement of capacitive liquid level sensor |
Non-Patent Citations (1)
| Title |
|---|
| 李杏华 等: "高精度电容式液位传感器的研究", 《2007"仪表，自动化及先进集成技术大会论文集（一）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357727A (en) * | 2018-10-31 | 2019-02-19 | 四川泛华航空仪表电器有限公司 | A kind of capacitance-type fuel quantity measuring system with permittivity compensation |
| CN109357727B (en) * | 2018-10-31 | 2020-08-14 | 四川泛华航空仪表电器有限公司 | Capacitance type oil mass measuring system with dielectric constant compensation |
| CN110646061A (en) * | 2019-09-17 | 2020-01-03 | 高海 | Double-path redundant intelligent calibration radio frequency admittance anti-overflow liquid level meter and measurement method thereof |
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| Publication number | Publication date |
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| CN108120487B (en) | 2020-12-01 |
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