CN108693336A - A kind of lubricating oil oil film level measuring instrument and its assay method - Google Patents
A kind of lubricating oil oil film level measuring instrument and its assay method Download PDFInfo
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- CN108693336A CN108693336A CN201810577029.4A CN201810577029A CN108693336A CN 108693336 A CN108693336 A CN 108693336A CN 201810577029 A CN201810577029 A CN 201810577029A CN 108693336 A CN108693336 A CN 108693336A
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- 239000003921 oil Substances 0.000 title claims abstract description 308
- 239000010687 lubricating oil Substances 0.000 title claims abstract description 81
- 238000003556 assay Methods 0.000 title claims abstract description 10
- 238000005259 measurement Methods 0.000 claims abstract description 49
- 230000000007 visual effect Effects 0.000 claims abstract description 9
- 239000002199 base oil Substances 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 23
- 239000000314 lubricant Substances 0.000 claims description 14
- 238000012545 processing Methods 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims 1
- 239000010711 gasoline engine oil Substances 0.000 description 18
- 239000000047 product Substances 0.000 description 16
- 239000011521 glass Substances 0.000 description 15
- 239000010710 diesel engine oil Substances 0.000 description 14
- 150000002148 esters Chemical class 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 12
- 239000003643 water by type Substances 0.000 description 10
- 230000010287 polarization Effects 0.000 description 9
- 230000005684 electric field Effects 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 7
- 229920013639 polyalphaolefin Polymers 0.000 description 7
- 239000013589 supplement Substances 0.000 description 7
- 239000000126 substance Substances 0.000 description 6
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- 150000002430 hydrocarbons Chemical group 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002480 mineral oil Substances 0.000 description 3
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- 150000002170 ethers Chemical class 0.000 description 2
- 238000005984 hydrogenation reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- -1 polyol ester Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
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- 238000003860 storage Methods 0.000 description 2
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- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000007866 anti-wear additive Substances 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000013556 antirust agent Substances 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
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- 239000003112 inhibitor Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
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- General Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The present invention relates to a kind of lubricating oil oil film level measuring instrument and its assay method, which includes the capacitance sensor being arranged in oil groove and the measurement module that is connect with the capacitance sensor, and the measurement module includes processor, and processor is configured as:Obtain the first measure epsilon of the first medium for representing minimum oil film levelmin, obtain the second measure epsilon of the second medium for representing highest oil film levelmax, obtain the third measure epsilon for the third medium that capacitance sensor measuresx, the oil film level of third medium is calculatedAnd it is fed back into user by visual manner and/or audible means, wherein the first measure epsilonmin, the second measure epsilonmaxWith third measure epsilonxIt is that and the ratio of direct ratio directly proportional with the third dielectric coefficient of the first dielectric coefficient of first medium, the second dielectric coefficient of second medium and third medium is identical respectively, third medium is original lubricating oil.
Description
Technical field
The present invention relates to lubricating oil detection fields, more particularly to quickly measure the microscopic features such as lubricating oil composition, structure and
Oil film horizontal a kind of lubricating oil oil film level measuring instrument and its assay method.
Background technology
Currently, ensure the lubriation material that mechanical equipment runs well, be essentially all the 5 classes basis issued by U.S. API
Oil modulation.5 class base oils including 1-3 class oil are mineral oil, 4 class oil are polyalphaolefin, 5 class oil be except 1~4 class base oil it
Other outer base oils (Synthin, esters, ethers, silicone oil etc.).The production process of 1 class base oil is with physical process substantially
It is main, do not change hydrocarbon structure, the basic oil quality of production depends on the content and property of ideal composition in raw material.Therefore, such
Base oil is restricted in performance;2 class base oils are made by group technology (solvent process and hydrogenation technique combination), work
Skill based on physics, chemical process, is not limited mainly by raw material, thus it is possible to vary hydrocarbon structure originally.Thus 2 class base oils are miscellaneous
Matter is few (arene content is less than 10%), and saturated hydrocarbon content is high, and thermostability and good in oxidation resistance, low temperature and soot dispersion performance are equal
Better than 1 class base oil;3 class base oils are made with full hydrogenation technique, are carried out with chemical enginnering process, compared with 2 class base oils,
Belong to the hydrogenated base oil of high viscosity index (HVI), also referred to as non-conventional base oil (UCBO).3 class base oils are in performance considerably beyond 1
Class base oil and 2 class base oils especially have very high Viscosity Index and very low volatility.The performance of certain 3 class oil can
It compares favourably with poly alpha olefin (PAO), price is but than synthetic oil considerably cheaper;4 class base oils refer to that poly alpha olefin (PAO) closes
At oil.Common production method has paraffin decomposition method and ethylene polymerization process.PAO according to degree of polymerization difference can be divided into low polymerization degree, in
The degree of polymerization, high polymerization degree are respectively intended to modulate different oil products.This kind of base oil is compared with mineral oil, no S, P and metal, by
In the not content of wax, so pour point is extremely low, usually at -40 DEG C hereinafter, viscosity index (VI) is generally more than 140.But PAO boundary lubrications are poor.
In addition, the polarity due to itself is small, it is poor to the solvability of polar additive, and have certain shrinkage to rubber seal,
But these problems can be all overcome by adding a certain amount of Esters oil.5 class oil are other in addition to 1~4 class base oil
Base oil (Synthin, esters, ethers, silicone oil etc.), Esters oil are that comprehensive performance is preferable, the earliest a kind of synthesis of development and application
Lubricating oil all contains ester functional groups-COOR ' in the molecule of Esters oil.According to the ester group in molecule is how many and position, Esters oil
Dibasic acid esters, polyol ester, complex ester and polyester can be divided into.There is ester group in ester molecule polarity, ester molecule to be easily adsorbed on friction table
Boundary film is formed on face, thus the lubricity of Esters oil is generally preferred over 1-4 classes oil of same viscosity.1-3 classes oil, 4 classes oil, 5 classes
Oil is all the base stocks for producing each class lubricating oil, and mass ratio is generally in 85-95% or so.
Engine oil, hydraulic oil, gear oil, gear box oil etc. currently on the market, with the development of Domestic Automotive Industry, production
Product kind is very abundant.In order to meet the needs used, various semi-synthetic, synthetic oil kinds can be found everywhere, but use
The content of synthetic oil and polar power decide the quality of oil product, that is, oily film strength, how quickly and easily to measure
Go out the content of synthetic oil and polar power, that is, oily film strength, all to the performance of Formula Development and intuitive displaying oil product
It has a very important significance, is a urgent problem to be solved.
Invention content
For the deficiency of the prior art, the present invention provides a kind of lubricating oil oil film level measuring instrument and its assay method,
Using different material in same capacitor medium dielectric constant microwave medium difference, the dielectric coefficient of lubricating oil depends on base oil, additive
The principle of ingredient and content, it is simple and quick by the size of numerical value by the polar power of new oil (unused) contained substance
It measures on ground.
According to a preferred embodiment, the invention discloses a kind of lubricating oil oil film level measuring instruments, including setting to exist
Capacitance sensor in oil groove and the measurement module being connect with the capacitance sensor, the measurement module includes processor, institute
Processor is stated to be configured as:Obtain the first measure epsilon of the first medium for representing minimum oil film levelmin, obtain and be used for generation
Second measure epsilon of the second medium of table highest oil film levelmax, obtain the of the third medium that the capacitance sensor measures
Three measure epsilonsx, the oil film level of third medium is calculatedAnd it is passed through into vision side
Formula and/or audible means feed back to user, wherein first measure epsilonmin, second measure epsilonmaxWith the third
Measure epsilonxIt is the third of the second dielectric coefficient and third medium with the first dielectric coefficient of first medium, second medium respectively
Dielectric coefficient is directly proportional and the ratio of direct ratio is identical, and the third medium is original lubricating oil.By this way, originally
The oil film that invention can rapidly measure third medium is horizontal, intuitively, fast to show the quality of oil product.
According to a preferred embodiment, the level measuring instrument further includes memory and for measuring in oil groove
One, second and/or third medium temperature the first temperature sensor, wherein at least two are stored in the memory not
The first measure epsilon measured under same fiducial temperatureminWith the second measure epsilonmax, the processor is configured as:Measuring institute
State third measure epsilonxWhen, by the oil temperature of third medium described in the first temperature sensor measurement, select in the memory
With the first measure epsilon measured under the matched fiducial temperature of the oil temperatureminWith the second measure epsilonmaxFor calculating third medium
The horizontal L of oil film, wherein with the matched fiducial temperature of the oil temperature differed with the oil temperature in the selection memory
Less than or equal to the fiducial temperature of the first preset percentage threshold value.Since the dielectric coefficient of fluid can become with the temperature change of fluid
Change, if one temperature-adjusting device of setting, the temperature of testing medium is adjusted to a scheduled temperature, then can before measuring
So that the volume of the analyzer of the present invention increases, it is not readily portable, and time of measuring is elongated, causes inconvenient low with measurement efficiency
The problem of.Therefore, the present invention stores the first measure epsilon measured under multiple temperature conditions in analyzerminWith the second measured value
εmaxFor subsequently matching corresponding first measure epsilon of corresponding fiducial temperature according to the oil temperature for measuring third mediumminWith second
Measure epsilonmax, so that the tester of the present invention can be accomplished quickly and accurately to measure oil film level in the case of portable.
According to a preferred embodiment, the processor is additionally configured to:Be not stored in the memory with
In the case of the matched fiducial temperature of oil temperature, third measure epsilon under the conditions of current oil temperature is first recordedx, pass through visual manner
And/or the first measure epsilon under the conditions of audible means request user's in-site measurement current oil temperatureminWith the second measure epsilonmax, and
The first measure epsilon under the conditions of user's in-site measurement current oil temperatureminWith the second measure epsilonmaxAfterwards, third Jie is thus calculated
The oil film of matter is horizontal In addition, using current oil temperature as newly-increased fiducial temperature and will be current
The first measure epsilon measured under oil temperature conditionminWith the second measure epsilonmaxIt is associatedly stored in newly-increased fiducial temperature described
In memory.By this way, the present invention can in subsequently measurement process constantly rich store waiting in memory
With data, it is not necessarily to pass through network more new system so that the use of analyzer is lower to the dependence of network, more convenient.
According to a preferred embodiment, the processor is additionally configured to:First is not measured in the tester to survey
Magnitude εminAnd/or second measure epsilonmaxCondition when, the processor according to the different fiducial temperatures that have measured and
The first measure epsilon being associatedminIt draws the first curve and/or closes according to the different fiducial temperature measured and therewith
Second measure epsilon of connectionmaxThe second curve is drawn, and show that first under relevant temperature surveys by the first curve and/or the second curve
Magnitude εminAnd/or second measure epsilonmax.By this way, the present invention can be according to existing data by drawing curve of approximation
Mode find out approximate first measure epsilonminAnd/or second measure epsilonmaxFor calculating a horizontal L of approximate oil film, with
Just user is immediately in the first measure epsilon of no measurementminAnd/or second measure epsilonmaxCondition when, can also obtain one it is close
As the horizontal L of oil film as reference.
According to a preferred embodiment, it is stored in the memory and measures under at least two different fiducial temperatures
First measure epsilonminWith the second measure epsilonmaxProcessing further include:At least two lubricant types are stored in the reservoir
The first measure epsilon measured under at least two different fiducial temperaturesminWith the second measure epsilonmax, the processor also by with
It is set to:Before the horizontal L of oil film that third medium is calculated, request user selects a lubricant type and thus from described
Corresponding first measure epsilon of the lubricant type is selected in memoryminWith the second measure epsilonmax, use the lubricant type pair
The first measure epsilon answeredminWith the second measure epsilonmaxThe horizontal L of oil film for calculating third medium.Due to different lubricating oil
May be different using the type and ratio of base oil, the type and type of additive may also be different, but the base of identical type
The difference smaller of plinth oil, therefore, after being distinguished according to the lubricating oil of same basic oil type composition so that the present invention is surveying
The first referenced measured value and second measures the lubricating oil for being more suitable for the type when measuring the oil film level of different lubricating oil,
Obtained measurement result is more accurate.Additive can be antifoaming agent, antiwear additive, friction improver, dispersant, detersive, resist
At least one of oxidant, antirust agent, viscosity index improver and corrosion inhibitor.
According to a preferred embodiment, the lubricating oil oil film level measuring instrument further includes second for measuring room temperature
Temperature sensor, the processor are additionally configured to:When measuring the oil temperature, it is real to acquire the second temperature sensor
When the room temperature that measures, the oil temperature and the room temperature differ by more than default equal to second in the oil temperature and the room temperature
When percentage threshold, it is original lubricating oil to remind the measurement object of this analyzer of user.Due to original profit
Lubricating oil is all placed under no Insulation, and temperature is usually all consistent with room temperature, in the oil for measuring medium to be measured
When temperature is differed by more than with room temperature equal to the second preset percentage threshold value, it is most likely that be that user takes from engine or gear-box
Go out used lubricating oil to measure, at this moment, it is horizontal to provide the user with inaccurate oil film in order to prevent, causes to miss
It leads, it is original lubricating oil to remind the measurement object of this analyzer of user.By this way, this can be passed through as much as possible
The analyzer of invention provides accurate measurement result to the user, the measurement for preventing user from must make mistake under abnormal operation for a long time
As a result, causing to mislead.
According to a preferred embodiment, the capacitance sensor is by the palisade capacitance of at least two capacitance parallel combinations
Sensor is measuring the first measure epsilonmin, the second measure epsilonmaxOr third measure epsilonxWhen, first medium, second are situated between
The medium of matter or third medium respectively as the capacitance sensor.
According to a preferred embodiment, the first medium is the lubricating oil being modulated into using nonpolar base oil, institute
It is the lubricating oil being modulated into using polarity base oil to state second medium.
The invention also discloses a kind of horizontal assay method of lubricating oil oil film, the method includes:Using setting in oil groove
Interior capacitance sensor, the measurement module being connect with the capacitance sensor and the processor being connect with the measurement module, institute
Processor is stated to be configured as:Obtain the first measure epsilon of the first medium for representing minimum oil film levelmin, obtain and be used for generation
Second measure epsilon of the second medium of table highest oil film levelmax, obtain the of the third medium that the capacitance sensor measures
Three measure epsilonsx, the oil film level of third medium is calculatedAnd it is passed through into vision side
Formula and/or audible means feed back to user, wherein first measure epsilonmin, second measure epsilonmaxWith the third
Measure epsilonxIt is the third of the second dielectric coefficient and third medium with the first dielectric coefficient of first medium, second medium respectively
Dielectric coefficient is directly proportional and the ratio of direct ratio is identical, and the third medium is original lubricating oil.
According to a preferred embodiment, the method further includes:Using memory and for measure in oil groove first,
Second and/or third medium temperature the first temperature sensor, wherein at least two are stored in at least one processor
The first measure epsilon measured under a different fiducial temperatureminWith the second measure epsilonmax, the processor is configured as:It is surveying
Measure the third measure epsilonxWhen, by the oil temperature of third medium described in the first temperature sensor measurement, select the storage
In device with the first measure epsilon for being measured under the matched fiducial temperature of the oil temperatureminWith the second measure epsilonmaxFor calculating third
The horizontal L of oil film of medium, wherein be and the oil temperature with the matched fiducial temperature of the oil temperature in the selection memory
Fiducial temperature of the difference less than or equal to the first preset percentage threshold value.
Description of the drawings
Fig. 1 is the structural schematic diagram of a preferred embodiment of the lubricating oil oil film level measuring instrument of the present invention;
Fig. 2 is the module diagram of a preferred embodiment of the lubricating oil oil film level measuring instrument of the present invention;With
Fig. 3 is the structural schematic diagram of a preferred embodiment of the capacitance sensor of the present invention.
Reference numerals list
1:Oil groove 2:Capacitance sensor 3:Measurement module
4:Memory 51:First temperature sensor 52:Second temperature sensor
6:Processor 7:Display screen
Specific implementation mode
It is described in detail below in conjunction with the accompanying drawings.
Embodiment 1
Present embodiment discloses a kind of lubricating oil oil film level measuring instrument, which is adapted for carrying out
Each method and step that the present invention records, to reach expected technique effect.In the case that do not cause conflict or it is contradictory,
The entirety and/or partial content of the preferred embodiment of his embodiment can be as the supplements of the present embodiment.
According to a preferred embodiment, referring to Fig. 1,2, which may include being arranged in oil
Capacitance sensor 2, the measurement module 3 being connect with the capacitance sensor 2 in slot 1 and the place being connect with the measurement module 3
Manage device 6.Preferably, the measurement module 3 can also include operational amplifier and analog-digital converter.Since lubricating oil forms difference
The output signal and its difference of generation are very littles, can be amplified through DC amplification circuit, then will through analog-digital converter
Analog signal is converted into digital signal and gives processor 6, by passing through display and/or language after the 6 horizontal L of calculating oil film of processor
The mode that sound is reported is to user's measurement result.
Preferably, processor 6 can be configured as:Obtain the first medium for representing minimum oil film level first is surveyed
Magnitude εmin, obtain the second measure epsilon of the second medium for representing highest oil film levelmax, obtain capacitance sensor 2 and measure
Third medium third measure epsilonx, the oil film level of third medium is calculatedAnd
It is fed back into user by visual manner and/or audible means.Preferably, the horizontal L of oil film is expressed with percents
Opposite film strength.First measure epsilonmin, the second measure epsilonmaxWith third measure epsilonxIt is first with first medium respectively
The third dielectric coefficient of dielectric coefficient, the second dielectric coefficient of second medium and third medium is directly proportional and the ratio phase of direct ratio
Together.Preferably, the first measure epsilonminThe first ratio, the second measure epsilon with the ratio between the first dielectric coefficientmaxWith the second dielectric system
Several the second ratio and third measure epsilonxIt is identical as the third ratio of third dielectric coefficient.Third medium can be not used
Lubricating oil.Preferably, original lubricating oil refers to the new oil that not parts were carried out with lubricating action.It is preferred that
Ground, the first measure epsilonminWith the second measure epsilonmaxCan prestore in memory, only when required by calling
Mode is obtained.Alternatively, the first measure epsilonminWith the second measure epsilonmaxIn-site measurement can be passed through.For example, by existing
The first medium for representing minimum oil film level is chosen in field, i.e. oil film level is chosen to be 0% the first measurement of calibration oil measurement
Value, and choose the second medium for representing highest oil film level at the scene, i.e., oil film level is chosen to be 100% calibration oil
Measure the second measured value.
According to a preferred embodiment, lubricating oil oil film level measuring instrument can also be including memory 4 and for measuring
First temperature sensor 51 of the temperature of first, second and/or third medium in oil groove 1.Can be stored in memory 4 to
The first measure epsilon measured under few two different fiducial temperaturesminWith the second measure epsilonmax.For example, first under 15 ° measures
Value εminWith the second measure epsilonmaxWith the first measure epsilon under 30 °minWith the second measure epsilonmax。
Preferably, processor 6 can be configured as:Measuring third measure epsilonxWhen, pass through the first temperature sensor
51 measure the oil temperature of third media, select in memory 4 with the first measure epsilon for being measured under the matched fiducial temperature of oil temperatureminWith
Second measure epsilonmaxThe horizontal L of oil film for calculating third medium, select with the matched fiducial temperature of oil temperature be in memory 4
The fiducial temperature less than or equal to the first preset percentage threshold value is differed with oil temperature.Preferably, the first temperature sensor 51 is set to oil
Within the slot and center of the upper surface in the capacitance sensor 2.Thus accurately two associated values are carried out as far as possible
Synchro measure.
According to a preferred embodiment, processor 6 can be additionally configured to:It is not stored in memory 4 and oil
In the case of the matched fiducial temperature of temperature, third measure epsilon under the conditions of current oil temperature is first recordedx, by visual manner and/or listen
Feel mode asks the first measure epsilon under the conditions of user's in-site measurement current oil temperatureminWith the second measure epsilonmax, and it is existing in user
The first measure epsilon under the conditions of field measurement current oil temperatureminWith the second measure epsilonmaxAfterwards, the oil film of third medium is thus calculated
It is horizontal
In addition, using current oil temperature as the fiducial temperature increased newly and the first measured value that will be measured under the conditions of current oil temperature
εminWith the second measure epsilonmaxIt is associatedly stored in memory 4 with newly-increased fiducial temperature.Visual manner can be by aobvious
Display screen and/or the mode of indicator light are transmitted to user asks.Audible means can be by way of voice broadcast and/or the tinkle of bells
It transmits and asks to user.
According to a preferred embodiment, processor 6 can be additionally configured to:The first measured value is not measured in tester
εminAnd/or second measure epsilonmaxCondition when, processor 6 is according to the different fiducial temperatures that have measured and is associated
The first measure epsilonminDraw the first curve and/or according to the different fiducial temperatures measured and be associated second
Measure epsilonmaxThe second curve is drawn, and obtains the first measure epsilon under relevant temperature by the first curve and/or the second curvemin
And/or second measure epsilonmax。
According to a preferred embodiment, measured under at least two different fiducial temperatures is stored in memory 4
One measure epsilonminWith the second measure epsilonmaxProcessing can also include:At least two lubricant types are stored in reservoir to exist
The first measure epsilon measured under at least two different fiducial temperaturesminWith the second measure epsilonmax.Processor 6 can also by with
It is set to:Before the horizontal L of oil film that third medium is calculated, request user selects a lubricant type and thus from storage
Corresponding first measure epsilon of the lubricant type is selected in device 4minWith the second measure epsilonmax, corresponded to using the lubricant type
The first measure epsilonminWith the second measure epsilonmaxThe horizontal L of oil film for calculating third medium.
According to a preferred embodiment, lubricating oil oil film level measuring instrument can also include second for measuring room temperature
Temperature sensor 52.Processor 6 can be additionally configured to:When measuring oil temperature, acquisition second temperature sensor 52 is real-time
The room temperature of measurement, compares oil temperature and room temperature, when oil temperature and room temperature are differed by more than equal to the second preset percentage threshold value, reminds
The measurement object of this analyzer of user is original lubricating oil.
According to a preferred embodiment, capacitance sensor 2 can be the palisade electricity by least two capacitance parallel combinations
Hold sensor 2, measures the first measure epsilonmin, the second measure epsilonmaxOr third measure epsilonxWhen, first medium, second
The medium of medium or third medium respectively as capacitance sensor 2.
According to a preferred embodiment, first medium can be the lubricating oil being modulated into using nonpolar base oil.The
Second medium can be the lubricating oil modulated using polarity base oil.
Embodiment 2
The present embodiment can be being further improved and/or supplementing to embodiment 1, and the content repeated repeats no more.This reality
It applies example and also discloses a kind of horizontal assay method of lubricating oil oil film, this method can be measured by the lubricating oil oil film level of the present invention
Instrument and/or other alternative parts are realized.For example, by using each in the lubricating oil oil film level measuring instrument of the present invention
The method that a parts realize the present invention.Do not causing conflict or contradictory, the preferred implementation side of other embodiment
The entirety and/or partial content of formula can be as the supplements of the present embodiment.
According to a preferred embodiment, a kind of horizontal assay method of lubricating oil oil film, this method may include:Using setting
The measurement module 3 set the capacitance sensor 2 in oil groove 1 and connect with capacitance sensor 2, wherein measurement module 3 may include
Processor 6.Processor 6 can be configured as:Obtain the first measured value of the first medium for representing minimum oil film level
εmin, obtain the second measure epsilon of the second medium for representing highest oil film levelmax, obtain capacitance sensor 2 measures the
The third measure epsilon of three mediax, the oil film level of third medium is calculatedAnd by its
User is fed back to by visual manner and/or audible means.First measure epsilonmin, the second measure epsilonmaxWith third measure epsilonx
It is the third dielectric coefficient with the first dielectric coefficient of first medium, the second dielectric coefficient of second medium and third medium respectively
Directly proportional and direct ratio ratio is identical.Third medium is original lubricating oil.
According to a preferred embodiment, this method can also include:Using memory 4 and for measuring in oil groove 1
First, second and/or third medium temperature the first temperature sensor 51.At least two are stored at least one processor 4
The first measure epsilon measured under a different fiducial temperatureminWith the second measure epsilonmax.Processor 6 can be configured as:It is surveying
Three measure epsilon of flow controlxWhen, by the first temperature sensor 51 measure third medium oil temperature, select memory 4 in oil temperature
The first measure epsilon measured under matched fiducial temperatureminWith the second measure epsilonmaxOil film for calculating third medium is horizontal
L.With the matched fiducial temperature of oil temperature can differ with oil temperature in selection memory 4 less than or equal to the first preset percentage threshold value
Fiducial temperature.
According to a preferred embodiment, capacitance sensor of the invention can be structure shown in Fig. 3.Capacitance sensor
Can be made of in the same plane one group parallel pole in parallel.Wherein, S is emission electrode, and R is receiving electrode.
When one timing of structure and appearance and size of capacitance sensor, capacitance is:
C=k × ε
In formula, ε is the dielectric constant of medium, and k is constant, is determined by the structure, shape, size of capacitor.
The present invention utilizes the presence of synthetic oil polar group, using the palisade capacitance sensor by multiple capacitance parallel combinations,
Pass through the dielectric system of synthetic oil of the measurement with polar group and mineral oil (1,2,3 class oil low pole) and other nonpolar synthetic oils
Several methods realizes the measurement of oil film level, also referred to as capacitance method.
Capacitance method is using fluid as dielectric, and dielectric coefficient is the major parameter of fluid electrochemical properties, pole in fluid
Property substance content it is different, the variation of dielectric coefficient will be influenced, the variation of fluid dielectric coefficient, be converted into capacitance, according to
The variation size of capacitance distinguishes the presence of polar substances and contents level in fluid.
The dielectric being placed in electrostatic field can generate dipole moment, under the action of external electric field, latent electricity along direction of an electric field
The local motion of lotus leads to macroscopically to show electrically charge occur on dielectric surface and internal non-uniform place, this
Kind phenomenon is known as polarizing, and the charge of appearance is known as polarization charge.These polarization charges change original electric field.Precisely due to electricity is situated between
The polarization of matter.Dielectric molecular polarization form is broadly divided into the polarization of electron displacement formula, ionic polarization, orientation polarization 3
Kind.Lubricating oil is a kind of hydrocarbon mixture of complexity, can be regarded as low pole liquid dielectric, under electric field action, generally
What is played a major role in lubrication oil medium is the polarization of electron displacement formula and orientation polarization.
When being detected between lubricating oil is put into plane-parallel capacitor pole plate as dielectric, it will polarize.In electricity
In the presence of, the dipole moment of polar molecule is arranged along direction of an electric field, an additional electric field is produced, with original electric field
Direction is on the contrary, make former electric field weaken.At this moment capacitance interpolar by lubricating oil because being full of, and capacitance increases n times, and n is exactly the medium
Relative dielectric constant.Polar component in medium is more, and relative dielectric constant is bigger.Since the capacitance C of capacitor is with dielectric
Constant r is directly proportional, and the variation by measuring capacitance can reflect horizontal existing for polar substances in lubricating oil.From actual use
From the point of view of, if the display screen 7 of oil film level meter directly displays actual measurement capacitance or voltage value, to the audiences of lubricating oil
It is neither intuitive on conceptual understanding, also lack Practical significance.For this purpose, introducing the concept of one " oil film is horizontal ", value range
It is 0%~100%.Value is bigger, indicates that lubricants performance is better, the thicker the oil film of formation the more secured, if value is expressed as phase for 0%
It is horizontal to oil film minimum, it is worth and indicates that opposite oil film is horizontal maximum for 100%.The horizontal L of oil film is calculated by following formula:
Preferably, εminThe lubricating oil horizontal minimum to oil film can be represented and measure the first dielectric coefficient of gained, the
The inverse of one output capacitance or the first output voltage values.εmaxIt can represent and institute is measured to the horizontal maximum lubricating oil of oil film
The inverse of the second dielectric coefficient, the second output capacitance or the second output voltage values that obtain, εxFor the third of some lubricating oil to be measured
The inverse of dielectric coefficient, third output capacitance or third output voltage values.Strictly speaking, the oil film level of lubricating oil and output electricity
Perhaps voltage εxAnd non-linear relation, but from practical standpoint, can be regarded as approximately linear.In this way, oil film level meter
Display screen 7 oil film level is shown in the form of percentage, then unusual intuitive and convenient.Preferably, in εx< εminWhen, enable L=
0%.In εx> εmaxWhen, enable L=100%.
The dielectric coefficient of lubricating oil is the physical quantity of the macro manifestations of microscopic features such as oil product composition, structure.By to profit
The test of lubricating oil Analysis of Dielectric Properties can reflect composition and structure feature inside lubricating oil, be assay lubricating oil synthesis matter
The effective means of figureofmerit.Method currently with dielectric coefficient analysis is all the dustiness of the oil during monitoring use, and
The method for being not applied to detection new oil quality performance (unused oil).
Existing detection device is bulky, needs certain place space, auxiliary equipment, the profession with certain knowledge
Personnel operate, complicated for operation, consume more manpower and materials.Small and exquisite, the volume of only daily mobile phone size of the invention,
It can be carried around, not need auxiliary equipment, easy to operate, as long as by simple training, normal person can be carried out operating, nothing
It needs to calculate, as a result the real-time display on instrument.
Dielectric technology is as wide applied to the most effective analysis means of extraction of substance dielectric properties characteristic information at present
Use generally, the present invention the microscopic features such as Fast Evaluation lubricating oil composition, structure, improve lubricant formula research and development efficiency and
It has broad application prospects in the marketing of product.
Embodiment 3
The present embodiment can be to embodiment 1,2 or its combine be further improved and/or supplement, repeat content not
It repeats again.
The present embodiment is by taking a kind of horizontal continuous mode of oil film of optional gasoline engine oil as an example.
Continuous short-press acknowledgement key 3 times;
Interface display gasoline engine oil, diesel engine oil, gear box oil and hydraulic oil;
By touch key-press up and down, gasoline engine oil oil product is selected;
Press acknowledgement key;
Occur that the printed words of synthetic oil please be put into;
The flat 100% calibration oil of being chosen to be of 3-4 oil dripping film waters is instilled into oil groove with glass bar or pipette;
Press acknowledgement key;
There are the printed words in calibration;
After the completion of calibration, there is " printed words are completed in calibration ", while the printed words of " base oil please be put into " occurs;
With suction strainer paper by the oil droplet wiped clean in oil groove, 3-4 oil dripping film waters are put down with glass bar or pipette and are chosen to be
0% calibration oil is put into oil groove;
Press acknowledgement key;
There is write-in and completes printed words;
Then shutdown is completed in calibration;
Long-press determination key is switched on;
Interface display oil product selects after booting:Gasoline engine oil, diesel engine oil, gear box oil or hydraulic oil;
By touch key-press up and down, gasoline engine oil is selected;
3-4 drop gasoline engine oils to be measured are instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, measurement result is shown on display screen 7, is expressed as a percentage.Profit shown in following table the first row secondary series
Lubricating oil can be the calibration oil that oil film level is chosen to be 100%, i.e. second medium.Following table the first row third arrange to the 5th row one of
Can be the calibration oil that oil film level is chosen to be 0%, i.e. first medium.In addition to calibrating oil, the oil film of remaining lubricating oil is horizontal
It is obtained by measuring, i.e. third measured value.
Embodiment 4
The present embodiment can be to embodiment 1,2,3 or its combine be further improved and/or supplement, repeat content
It repeats no more.The present embodiment is by taking a kind of horizontal continuous mode of oil film of optional diesel engine oil as an example.
Continuous short-press acknowledgement key 3 times, interface display gasoline engine oil, diesel engine oil, gear box oil and hydraulic oil;
By touch key-press up and down, diesel engine oil is selected;
Acknowledgement key is pressed, occurs that the printed words of synthetic oil please be put into;
The flat 100% calibration oil of being chosen to be of 3-4 oil dripping film waters is instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, the printed words in calibration occurs;
After the completion of calibration, there is " printed words are completed in calibration ", while the printed words of " base oil please be put into " occurs;
With suction strainer paper by the oil droplet wiped clean in oil groove, 3-4 oil dripping film waters are put down with glass bar or pipette and are chosen to be
0% calibration oil is put into oil groove;
Acknowledgement key is pressed, write-in occurs and completes printed words;
Then shutdown is completed in calibration;
Long-press determination key is switched on, and interface display oil product selects after booting:Gasoline engine oil, diesel engine oil, gear box oil, hydraulic pressure
Oil;
By touch key-press up and down, diesel engine oil oil product is selected;
3-4 drop diesel engine oils to be measured are instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, measurement result is shown on display screen 7, is expressed as a percentage.Profit shown in following table the first row secondary series
Lubricating oil can be the calibration oil that oil film level is chosen to be 100%, i.e. second medium.Following table the first row third arrange to the 4th row one of
Can be the calibration oil that oil film level is chosen to be 0%, i.e. first medium.In addition to calibrating oil, the oil film of remaining lubricating oil is horizontal
It is obtained by measuring, i.e. third measured value.
Embodiment 5
The present embodiment can be to embodiment 1,2,3,4 or its combine be further improved and/or supplement, repeat it is interior
Appearance repeats no more.The present embodiment is by taking a kind of horizontal continuous mode of oil film of optional hydraulic oil as an example.
Continuous short-press acknowledgement key 3 times;
Interface display gasoline engine oil, diesel engine oil, gear box oil, hydraulic oil;
By touch key-press up and down, hydraulic oil is selected;
Acknowledgement key is pressed, occurs that the printed words of synthetic oil please be put into;
The flat 100% calibration oil of being chosen to be of 3-4 oil dripping film waters is instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, the printed words in calibration occurs;
After the completion of calibration, there is " printed words are completed in calibration ", while the printed words of " base oil please be put into " occurs;
With suction strainer paper by the oil droplet wiped clean in oil groove, 3-4 oil dripping film waters are put down with glass bar or pipette and are chosen to be
0% calibration oil is put into oil groove;
Acknowledgement key is pressed, write-in occurs and completes printed words;
Then shutdown is completed in calibration;
Long-press determination key is switched on, and interface display oil product selects after booting:Gasoline engine oil, diesel engine oil, gear box oil and liquid
Pressure oil;
By touch key-press up and down, hydraulic oil is selected;
3-4 drop hydraulic oil to be measured are instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, measurement result is shown on display screen 7, is expressed as a percentage.
Lubricating oil shown in following table the first row secondary series can be the calibration oil that oil film level is chosen to be 100%, i.e., second is situated between
Matter.It can be calibration oil that oil film level be chosen to be 0%, i.e. first medium that following table the first row third, which is arranged to one of the 4th row,.It removes
Other than calibration oil, the oil film level of remaining lubricating oil is obtained by measuring, i.e. third measured value.
Embodiment 6
The present embodiment can be to embodiment 1,2,3,4,5 or its combine be further improved and/or supplement, repeat
Content repeats no more.
The present embodiment is by taking a kind of horizontal continuous mode of oil film of optional gear box oil as an example.
Continuous short-press acknowledgement key 3 times;
Interface display gasoline engine oil, diesel engine oil, gear box oil, hydraulic oil are selected and are become by touch key-press up and down
Fast case oil oil product;
Acknowledgement key is pressed, occurs that the printed words of synthetic oil please be put into;
The flat 100% calibration oil of being chosen to be of 3-4 oil dripping film waters is instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, the printed words in calibration occurs;
After the completion of calibration, there is " printed words are completed in calibration ", while the printed words of " base oil please be put into " occurs;
With suction strainer paper by the oil droplet wiped clean in oil groove, 3-4 oil dripping film waters are put down with glass bar or pipette and are chosen to be
0% calibration oil is put into oil groove;
Acknowledgement key is pressed, write-in occurs and completes printed words, calibration is completed;
Interface display oil product selects after the completion of calibration:Gasoline engine oil, diesel engine oil, gear box oil, hydraulic oil;
By touch key-press up and down, gear box oil is selected;
3-4 drop gear box oils to be measured are instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, measurement result is shown on display screen 7, is expressed as a percentage.Profit shown in following table the first row secondary series
Lubricating oil can be the calibration oil that oil film level is chosen to be 100%, i.e. second medium.Following table the first row third arrange to the 4th row one of
Can be the calibration oil that oil film level is chosen to be 0%, i.e. first medium.In addition to calibrating oil, the oil film of remaining lubricating oil is horizontal
It is obtained by measuring, i.e. third measured value.
Embodiment 7
The present embodiment can be to embodiment 1,2,3 or its combine be further improved and/or supplement, repeat content
It repeats no more.
The present embodiment is by taking a kind of horizontal continuous mode of oil film of optional gasoline engine oil as an example.
Continuous short-press acknowledgement key 3 times;
Interface display gasoline engine oil, diesel engine oil, gear box oil, hydraulic oil;
By touch key-press up and down, gasoline engine oil oil product is selected;
Acknowledgement key is pressed, occurs that the printed words of synthetic oil please be put into;
The flat 100% calibration oil of being chosen to be of 3-4 oil dripping film waters is instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, the printed words in calibration occurs;
After the completion of calibration, there is " printed words are completed in calibration ", while the printed words of " base oil please be put into " occurs;
With suction strainer paper by the oil droplet wiped clean in oil groove, 3-4 oil dripping film waters are put down with glass bar or pipette and are chosen to be
0% calibration oil is put into oil groove;
Acknowledgement key is pressed, write-in occurs and completes printed words;
Then shutdown is completed in calibration;
Long-press determination key is switched on, and interface display oil product selects after booting:Gasoline engine oil, diesel engine oil, gear box oil, hydraulic pressure
Oil;
By touch key-press up and down, gasoline engine oil is selected;
3-4 drop gasoline engine oils to be measured are instilled into oil groove with glass bar or pipette;
Acknowledgement key is pressed, measurement result is shown on display screen 7, is expressed as a percentage.Profit shown in following table the first row secondary series
Lubricating oil can be the calibration oil that oil film level is chosen to be 100%, i.e. second medium.Following table the first row third arrange to the 4th row one of
Can be the calibration oil that oil film level is chosen to be 0%, i.e. first medium.In addition to calibrating oil, the oil film of remaining lubricating oil is horizontal
It is obtained by measuring, i.e. third measured value.
Word " module " as used herein describes any hardware, software or combination thereof, is able to carry out and " mould
The associated function of block ".
It should be noted that above-mentioned specific embodiment is exemplary, those skilled in the art can disclose in the present invention
Various solutions are found out under the inspiration of content, and these solutions also belong to disclosure of the invention range and fall into this hair
Within bright protection domain.It will be understood by those skilled in the art that description of the invention and its attached drawing are illustrative and are not
Constitute limitations on claims.Protection scope of the present invention is limited by claim and its equivalent.
Claims (10)
1. a kind of lubricating oil oil film level measuring instrument, including the capacitance sensor (2) that is arranged in oil groove (1) and with the capacitance
The measurement module (3) of sensor (2) connection, the measurement module (3) includes processor (6), which is characterized in that the processor
(6) it is configured as:
Obtain the first measure epsilon of the first medium for representing minimum oil film levelmin,
Obtain the second measure epsilon of the second medium for representing highest oil film levelmax,
Obtain the third measure epsilon of the third medium of the capacitance sensor (2) measurementx,
The oil film that third medium is calculated is horizontalAnd by it by visual manner and/or
Audible means feed back to user,
Wherein, first measure epsilonmin, second measure epsilonmaxWith the third measure epsilonxIt is and first medium respectively
The first dielectric coefficient, second medium the second dielectric coefficient and third medium third dielectric coefficient it is directly proportional and it is described just
The ratio of ratio is identical,
The third medium is original lubricating oil.
2. lubricating oil oil film level measuring instrument as described in claim 1, which is characterized in that the level measuring instrument further includes depositing
The first temperature sensor (51) of reservoir (4) and temperature for measuring first, second and/or third medium in oil groove (1),
Wherein, it is stored with the first measure epsilon measured under at least two different fiducial temperatures in the memory (4)minWith
Two measure epsilonsmax,
The processor (6) is configured as:
Measuring the third measure epsilonxWhen, the oil temperature of the third medium, choosing are measured by the first temperature sensor (51)
Select in the memory (4) with the first measure epsilon for being measured under the matched fiducial temperature of the oil temperatureminWith the second measure epsilonmax
The horizontal L of oil film for calculating third medium,
Wherein, it is to differ to be less than with the oil temperature with the matched fiducial temperature of the oil temperature in the selection memory (4)
Equal to the fiducial temperature of the first preset percentage threshold value.
3. lubricating oil oil film level measuring instrument as claimed in claim 2, which is characterized in that the processor (6) is also configured
For:
In the case of not being stored with fiducial temperature matched with the oil temperature in the memory (4), current oil is first recorded
Third measure epsilon under the conditions of temperaturex,
The first measure epsilon under the conditions of user's in-site measurement current oil temperature is asked by visual manner and/or audible meansminWith
Second measure epsilonmax,
And the first measure epsilon under the conditions of user's in-site measurement current oil temperatureminWith the second measure epsilonmaxAfterwards, it thus calculates
The oil film of third medium is horizontal
In addition, using current oil temperature as the fiducial temperature increased newly and the first measure epsilon that will be measured under the conditions of current oil temperatureminWith
Second measure epsilonmaxIt is associatedly stored in the memory (4) with newly-increased fiducial temperature.
4. lubricating oil oil film level measuring instrument as claimed in claim 3, which is characterized in that the processor (6) is also configured
For:The first measure epsilon is not measured in the testerminAnd/or second measure epsilonmaxCondition when, the processor
(6) according to the different fiducial temperatures measured and the first measure epsilon being associatedminDraw the first curve and/or according to
The different fiducial temperatures measured and the second measure epsilon being associatedmaxDraw the second curve, and by the first curve and/
Or second curve obtain the first measure epsilon under relevant temperatureminAnd/or second measure epsilonmax。
5. the lubricating oil oil film level measuring instrument as described in one of claim 2 to 4, which is characterized in that in the memory (4)
It is stored with the first measure epsilon measured under at least two different fiducial temperaturesminWith the second measure epsilonmaxProcessing further include:
At least two lubricant types measure under at least two different fiducial temperatures first is stored in the reservoir
Measure epsilonminWith the second measure epsilonmax,
The processor (6) is additionally configured to:
Before the horizontal L of oil film that third medium is calculated, request user selects a lubricant type and thus from described
Corresponding first measure epsilon of the lubricant type is selected in memory (4)minWith the second measure epsilonmax,
Use corresponding first measure epsilon of the lubricant typeminWith the second measure epsilonmaxOil film for calculating third medium
Horizontal L.
6. lubricating oil oil film level measuring instrument as described in claim 3 or 4, which is characterized in that the lubricating oil oil film is horizontal
Analyzer further include for measuring the second temperature sensor of room temperature (52),
The processor (6) is additionally configured to:
When measuring the oil temperature, the room temperature that the second temperature sensor (52) measures in real time is acquired,
Compare the oil temperature and the room temperature,
When the oil temperature and the room temperature are differed by more than equal to the second preset percentage threshold value, this analyzer of user is reminded
Measurement object is original lubricating oil.
7. lubricating oil oil film level measuring instrument as described in claim 1, which is characterized in that the capacitance sensor (2) be by
The palisade capacitance sensor (2) of at least two capacitance parallel combinations is measuring the first measure epsilonmin, the second measure epsilonmaxOr
Third measure epsilonxWhen, the Jie of first medium, second medium or third medium respectively as the capacitance sensor (2)
Matter.
8. lubricating oil oil film level measuring instrument as described in claim 1, which is characterized in that the first medium is to use non-pole
The lubricating oil that property base oil is modulated into, the second medium is the lubricating oil being modulated into using polarity base oil.
9. a kind of horizontal assay method of lubricating oil oil film, which is characterized in that the method includes:
Using be arranged capacitance sensor (2) in oil groove (1), the measurement module (3) being connect with the capacitance sensor (2) and
The processor (6) being connect with the measurement module (3), the processor (6) are configured as:
Obtain the first measure epsilon of the first medium for representing minimum oil film levelmin,
Obtain the second measure epsilon of the second medium for representing highest oil film levelmax,
Obtain the third measure epsilon of the third medium of the capacitance sensor (2) measurementx,
The oil film that third medium is calculated is horizontalAnd by it by visual manner and/or
Audible means feed back to user,
Wherein, first measure epsilonmin, second measure epsilonmaxWith the third measure epsilonxIt is and first medium respectively
The first dielectric coefficient, second medium the second dielectric coefficient and third medium third dielectric coefficient is directly proportional and direct ratio
Ratio is identical,
The third medium is original lubricating oil.
10. method as claimed in claim 9, which is characterized in that the method further includes:
First temperature of the temperature using memory (4) and for measuring first, second and/or third medium in oil groove (1)
Sensor (51),
Wherein, first measured under at least two different fiducial temperatures is stored in at least one processor (4) to measure
Value εminWith the second measure epsilonmax,
The processor (6) is configured as:
Measuring the third measure epsilonxWhen, the oil temperature of the third medium, choosing are measured by the first temperature sensor (51)
Select in the memory (4) with the first measure epsilon for being measured under the matched fiducial temperature of the oil temperatureminWith the second measure epsilonmax
The horizontal L of oil film for calculating third medium,
Wherein, it is to differ to be less than with the oil temperature with the matched fiducial temperature of the oil temperature in the selection memory (4)
Equal to the fiducial temperature of the first preset percentage threshold value.
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