CN108827831A - Oscillatory type viscosity apparatus and its Detection Method of Liquid Viscosity - Google Patents
Oscillatory type viscosity apparatus and its Detection Method of Liquid Viscosity Download PDFInfo
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 230000003534 oscillatory effect Effects 0.000 title abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 6
- 239000000523 sample Substances 0.000 claims description 17
- 239000012530 fluid Substances 0.000 claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 239000002904 solvent Substances 0.000 claims description 9
- 230000010355 oscillation Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 6
- 230000007246 mechanism Effects 0.000 claims description 3
- 238000004088 simulation Methods 0.000 claims description 3
- 230000001960 triggered effect Effects 0.000 claims description 3
- 239000004034 viscosity adjusting agent Substances 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 239000010941 cobalt Substances 0.000 description 3
- 229910017052 cobalt Inorganic materials 0.000 description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 229910052759 nickel Inorganic materials 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000010358 mechanical oscillation Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
- G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
- G01N11/16—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by measuring damping effect upon oscillatory body
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Abstract
A kind of oscillatory type viscosity apparatus and its Detection Method of Liquid Viscosity, wherein, oscillatory type viscosity apparatus includes fixing piece, vibration spring plate, distance-sensor, on the fixing piece of the close free end between the fixing end and free end of the vibration spring plate, after the predetermined displacement close to the distance-sensor of the free end of the vibration spring plate, it triggers distance-sensor and changes into another working condition from a kind of working condition, and issue electric signal；Driving device, including driving circuit and driving main body, the driving circuit are controlled by the controller, and provide predetermined resonant frequency signal to the driving main body；Temperature detection device is kept for the interval time of constant, collection distance-sensor the electric signal of driving device vibration frequency and the temperature data of sample with the distance-sensor, driving device and the controller of connection for the temperature detection of sample.The present invention has will not be by electromagnetic interference, the stable advantage of test result.
Description
Technical field
The present invention relates to a kind of oscillatory type viscosity apparatus and its Detection Method of Liquid Viscosity.
Background technique
Viscosity is to indicate liquid in flowing, and the interior physical quantity to rub occurs for liquid internal, is the energy of liquid resistance deformation
Power is for identifying certain finished products or semi-finished product important indicator.
In Practical Project and industrial production, it is often necessary to the viscosity of liquid is detected, to guarantee optimal process operation environment
And product quality, to improve productivity effect.By the liquid viscosity in measurement process, the number of available fluid stream behavior
According to for predicting that the technology controlling and process of Product Process process, the operability of transporting and product when in use have important finger
Lead value.
Viscosimeter (Viscosimeter) is used to measure the instrument of the viscosity of liquid.Viscosimeter mainly has capillary viscosity
Meter, rotational viscometer and vibrating type viscometer three categories.Wherein, the working principle of vibrating type viscometer is：It is intracorporal in liquid
It will receive the inhibition of liquid when object vibration, the size of this effect is related with the viscosity of liquid.Common oscillatory type viscosity
Meter is equipped with an elastic slice.When by pulsed current excitation, elastic slice generates mechanical oscillation.When elastic slice is immersed in sample, bullet
The amplitude of piece is related with the viscosity of sample and density.In the case where known density, viscosity can be acquired from the frequency data measured
Numerical value.
A kind of vibrating type viscometer disclosed in Chinese patent literature CN102183440A is exactly this kind of product, it includes level
The fixing end of vibration device, the horizontal vibration device is fixed on bracket, and free end is equipped with sensing chip；Vibration device by
Excitation identical with its resonance frequency, sensing chip vibrate the viscous drag that will receive liquid in a liquid；One detection device is used
Movement velocity when vibrating vibration device becomes electric signal and sends controller to, and changing excitation density by control algolithm makes
The vibration velocity is kept constant, then can measure viscous drag, and then calculate viscosity.The detection device of the vibrating type viscometer
For electromagnetic detection mode, including detection coil and signal processing circuit；Detection coil is fixed on the other side of the permanent magnet, when
When permanent magnet is moved with horizontal vibration device, induced voltage is generated in detection coil, realizes horizontal vibration device movement speed
To the conversion of electric signal.This vibrating type viscometer has two groups of coils, one group of powered coil, and powered coil generates magnetic field excitation sense
Piece is answered to vibrate, another group of coil is detection coil, and induction is located at the induction that the permanent magnet on sensing chip generates in detection coil
Then induced voltage transformed value is again viscosity by voltage transformation value, this vibrating type viscometer is due to there are two groups of coils, two groups
Coil generates two magnetic fields, can usually generate interference between two magnetic fields, and makes measurement result unstable.
Summary of the invention
In order to overcome the above problem, the present invention provides one kind will not be by electromagnetic interference, and the stable oscillatory type of test result is viscous
Spend instrument and its Detection Method of Liquid Viscosity.
The technical scheme is that：A kind of vibrating type viscometer is provided, by controller control while automatic measurement liquid
Viscosity and temperature, including following components：
For fixing the fixing piece of driving device；
The vibration spring plate made of ferrimagnet, described vibration spring plate one end are fixedly connected with the fixing piece, the vibration
The elastic slice other end is free end；
Distance-sensor, on the fixing piece of the close free end between the fixing end and free end of the vibration spring plate, when
Distance-sensor is triggered from a kind of work shape after the close predetermined displacement of the distance-sensor in the free end of the vibration spring plate
State changes into another working condition, and issues electric signal；
Driving device, including driving circuit and driving main body, the driving circuit are controlled by the controller, mention to the driving main body
For predetermined resonant frequency signal；
Temperature detection device, including temp probe and processing circuit, temp probe are used for the temperature detection of sample, processing electricity
The simulation signal for the temperature that road will test is changed into digital signal；
With the distance-sensor, driving device and the controller of connection, holding driving device vibration frequency is constant, collects distance
Inductor triggering moment, so that the time difference of electric signal is issued at the beginning of calculating elastic slice starting of oscillation to distance-sensor, with
And the temperature data of sample.
As improvement of the present invention, the invention also includes be used to stablize the vibration spring plate made of ferrimagnet
The baffle of vibration, the baffle and the vibration spring plate are arranged in parallel, and the baffle is located at the separate institute of the vibration spring plate
The side of fixing piece is stated, at least one end of the baffle is fixedly connected with the fixing piece.
As improvement of the present invention, the driving main body includes iron core and driving coil；After the driving coil is powered
Magnetic field is generated, vibration spring plate is vibrated.
As improvement of the present invention, the fixing piece is a box body, and the vibration spring plate is located on the lateral wall of box body,
At least described driving main body and the distance-sensor are located in box, the driving main body and described distance-sensor one end part
Ground stretches out in outside box body, and corresponding with the position of the vibration spring plate.
As improvement of the present invention, protection circuit is parallel between the disengaging both ends of the driving coil.
As improvement of the present invention, there are also range sensor protective covers for 3 outside of range sensor.Range sensor
It is embedded into protective cover, first is that playing protection waterproof action, two can also play the role of fixation spring tab displacement.
As improvement of the present invention, the invention also includes the container for containing solvent and executing agency, the executing agencies
When the viscosity of fluid to be measured is greater than predetermined value, the solvent in container is blended into fluid to be measured according to the instruction of controller.
The present invention also provides a kind of Detection Method of Liquid Viscosity, include the following steps,
S1, under the control of the controller, driving circuit provide the square-wave pulse signal of preset frequency to driving coil；
S2, pulse signal make driving coil generate magnetic field identical with preset frequency；
S3, the magnetic field suction vibration spring plate deformation, it is mobile to distance-sensor, when the free end of the vibration spring plate is to described
Distance-sensor triggers distance-sensor from a kind of working condition and changes into another working condition after predetermined displacement, and
Electric signal is issued to controller；
S4, controller control the driving coil power-off, and the vibration spring plate restores reset condition；In cycles；Controller root
The time difference for issuing electric signal at the beginning of according to vibration spring plate starting of oscillation to distance-sensor, find out the viscosity of liquid.
As improvement of the present invention, the invention also includes S5, temperature-compensating step, controller is according to temp probe institute
The temperature for the current environment measured is compared with environment temperature when calibration, because temperature will affect the magnetic force size of coil,
And then influence the viscosity number of measurement.It is modified according to viscosity of the comparison result to the liquid that S4 step is found out.
It further include S6, viscosity-adjusting agent step after S4 or S5 step as improvement of the present invention, controller is according to working as
Preceding viscosity or revised actual viscosity are held when the viscosity of fluid to be measured is greater than predetermined viscosity value according to the instruction of controller
Solvent is blended into fluid to be measured by row mechanism, to adjust actual viscosity.
The present invention has will not be by electromagnetic interference, the stable advantage of test result.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of embodiment of the invention.
Fig. 2 is the protection electrical block diagram of Fig. 1.
Fig. 3 is method frame structure schematic diagram of the invention.
Specific embodiment
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
The working principle of the invention is：
When to the rectangular pulse signal of driving coil input preset frequency, driving coil is due to that electric must can generate magnetic field, magnetic field
To attract vibration spring plate deformation, vibration spring plate can be mobile to distance-sensor, when the free end of the vibration spring plate is to described
Distance-sensor triggers distance-sensor from a kind of working condition and changes into another working condition after predetermined displacement, and
Electric signal is issued to controller, controller controls driving coil and powers off at once.Vibration spring plate restores reset condition.In cycles,
Vibrate vibration spring plate always.Controller according to vibration spring plate starting of oscillation at the beginning of to distance-sensor issue electric signal when
Between it is poor, find out the viscosity of liquid；When detection, environment temperature and temperature when calibration have the temperature difference, also need to the viscosity of measurement into
Row amendment.
According to the definition of viscosity, it is defined as a pair of of parallel-plate, area A is filled with certain liquid between dr, plate；The present is to upper
Plate applies a thrust F, power needed for making it generate a velocity variations degree.Since the viscosity of liquid transmits this power layer by layer, each layer
Also corresponding sports, one velocity gradient dv/dr of formation claim shear rate to liquid, and F/A is known as shear stress.Shear rate and shearing
There is following relationship between stress：
（F/A）=η（dv/dr）Formula one
η is viscosity, and F is the thrust applied onboard, and A is the area of plate, and dv/dr is the speed increment in unit length, i.e.,
Dv is speed increment, and dr is displacement increment.
In the present invention, apply thrust onboard：
F=F1-F2 formula two
F1 is magnetic force, and F2 is the elastic force of elastic slice.
Speed increment in unit length：
（dv/dr）=V/S=1/t formula three
V is the average speed of elastic slice, and S is elastic slice displacement, and t is the time of elastic slice movement.
To sum up：η=（F1-F2）* t/A formula four
F1 is magnetic force in formula, and F2 is elastic force, and t is elastic slice run duration, and A is elastic slice area.F1, F2, A are invariant, it is seen that
Liquid viscosity is directly proportional to the run duration of elastic slice, as long as detecting that elastic slice run duration can find out the viscosity of liquid.
When viscosity sensor is put into a kind of normal fluid, time t0 at this time can detecte out, viscosity at this time can be used
Flow cup measures.So as to obtain（F1-F2）The value of/A.
When being put into fluid to be measured, the time t of liquid can be detected out, can be calculated separately by the formula of bringing into four
A kind of viscosity of liquid.
When viscosity apparatus immerse liquid in when, due to liquid viscosity difference, thus at the beginning of vibration spring plate starting of oscillation to away from
The time for issuing electric signal from inductor also can be different, by detection vibration spring plate starting of oscillation at the beginning of sent out to distance-sensor
The time difference of electric signal can measure the viscosity of liquid out.
Referring to Figure 1 and Fig. 2, Fig. 1 and Fig. 2 disclose be a kind of vibrating type viscometer, by controller control simultaneously it is automatic
Measure the viscosity and temperature of liquid, including following components：
For fixing the fixing piece 1 of driving device 4；
Vibration spring plate 2 made of ferrimagnet, described 2 one end 21 of vibration spring plate is fixedly connected with the fixing piece 1, described
2 other end of vibration spring plate is free end 22；Ferrimagnet in the present embodiment can be iron, cobalt or nickel and its iron cobalt or nickel
Alloy material, especially steel disc or teleoseal piece；
Distance-sensor 3, the fixing piece 1 of the close free end 22 between the fixing end and free end of the vibration spring plate 2
On, when the free end 22 of the vibration spring plate 2 to the distance-sensor 3 close to predetermined displacement after, triggering distance-sensor 3 from
A kind of working condition changes into another working condition, and issues electric signal；Distance-sensor 3 in the present invention can be close
Switch or range sensor, when the free end of vibration spring plate 2 22 to the distance-sensor 3 close to predetermined displacement after, triggering away from
From inductor 3 from pass, or the variation from closing to opening is reached, so that distance-sensor 3 be made to generate an electric signal, electric signal quilt
It is conveyed to controller 6；
Driving device 4, including driving circuit 41 and driving main body 42, the driving circuit 41 is controlled by controller 6, to the drive
Dynamic main body 42 provides predetermined resonant frequency signal；Resonant frequency signal is generally square-wave pulse signal；
Temperature detection device 5, including temp probe 51 and processing circuit 52, temp probe 51 both can be used for the temperature of sample
Degree detection, also can detecte the temperature of coil.The simulation signal for the temperature that processing circuit 52 will test is changed into digital signal；
With the distance-sensor 3, driving device 4 and the controller 6 connecting, constant, the receipts of 4 vibration frequency of driving device are kept
Collect the triggering moment of the electric signal of distance-sensor 3 and the temperature data of sample.Controller 6 in the present embodiment is by model
The chip and base peripheral circuit of stm8s105 is constituted.
Preferably, the invention also includes the baffles vibrated made of ferrimagnet for stablizing the vibration spring plate 2
7, the baffle 7 is arranged in parallel with the vibration spring plate 2, and the baffle 7 is located at the separate fixation of the vibration spring plate 2
The side of part 1, at least one end of the baffle 7 are fixedly connected with the fixing piece 1.The baffle 7 plays protection vibration spring plate
2 and stable vibration elastic slice 2 effect, i.e., when driving coil 422 power off after, vibration spring plate 2 can stop in time.
Preferably, the driving main body 42 includes iron core 421 and driving coil 422；The driving coil 422 produces after being powered
Magnetisation field vibrates vibration spring plate 2.The shape of the iron core 421 can be U-shaped, and the driving coil 422 can be divided into 2
On a two poles for being respectively wound around U-iron core, it is also possible to an independent driving coil 422 and is wrapped in U-iron core
On the pole of the free end 22 of elastic slice 2；
Preferably, the fixing piece 1 is a box body, and the vibration spring plate 2 is located on the lateral wall of box body, at least described driving master
Body 42 and the distance-sensor 3 are located in box, and the driving main body 42 and 3 one end of the distance-sensor partly stretch out in
Outside box body, and it is corresponding with the position of the vibration spring plate 2.
Preferably, protection circuit 8 is parallel between the disengaging both ends of the driving coil 422.Protection circuit 8 can join
See Fig. 2, the first voltage-stabiliser tube D1 and the second voltage-stabiliser tube D2 in circuit is protected to play the induced electricity to driving coil 422 after a loss of power
The effect discharged, while immediate stability elastic slice can be played the role of after power-off.Third voltage-stabiliser tube D3, the 4th voltage-stabiliser tube
D4, the 5th voltage-stabiliser tube D5 and the 6th voltage-stabiliser tube D6 play the role of the electric signal that stabilizing distance inductor 3 is inputted to controller 6.
Preferably, there are also range sensor protective covers for 3 outside of range sensor.Range sensor is embedded into protective cover
Interior, first is that playing protection waterproof action, two can also play the role of fixation spring tab displacement.
Preferably, the invention also includes the container for containing solvent and executing agency, the executing agency is in fluid to be measured
When viscosity is greater than predetermined value, the solvent in container is blended into fluid to be measured according to the instruction of controller 6.
Fig. 3 is referred to, the present invention also provides a kind of Detection Method of Liquid Viscosity, include the following steps,
S1, under the control of controller 6, driving circuit 42 to driving coil 422 provide preset frequency pulse signal；
S2, pulse signal make driving coil 422 generate magnetic field identical with preset frequency；
S3,2 deformation of magnetic field suction vibration spring plate, it is mobile to distance-sensor 3, when the free end 22 of the vibration spring plate 2
To the distance-sensor 3 after predetermined displacement, distance-sensor 3 is triggered from a kind of working condition and changes into another work
State, and electric signal is issued to controller 6；Ferrimagnet in the present embodiment can be iron, cobalt or nickel and its iron, cobalt or
The alloy material of nickel, especially steel disc or teleoseal piece；Distance-sensor 3 in the present invention can be close to switch or away from
From sensor, when the free end of vibration spring plate 2 22 to the distance-sensor 3 close to predetermined displacement after, trigger distance-sensor 3
It is closed from reaching, or the variation from closing to opening, so that distance-sensor 3 be made to generate an electric signal, electric signal is fed to control
Device 6 processed；
S4, the driving coil 422 power off, and the vibration spring plate 2 restores reset condition；In cycles；Controller 6 is according to vibration
The time difference for issuing electric signal at the beginning of 2 starting of oscillation of elastic slice to distance-sensor 3, find out the viscosity of liquid.
As improvement of the present invention, the invention also includes S5, temperature-compensating step, controller 6 is according to temp probe 51
Measured current environmental temperature is compared with environment temperature when calibration, is repaired to the viscosity for the liquid that S4 step is found out
Just.
It further include S6, viscosity-adjusting agent step after S4 or S5 step as improvement of the present invention, controller 6 is according to working as
Preceding viscosity or revised actual viscosity are held when the viscosity of fluid to be measured is greater than predetermined viscosity value according to the instruction of controller 6
Solvent is blended into fluid to be measured by row mechanism, to adjust actual viscosity.
Obviously, various changes and modifications can be made to the invention without departing from essence of the invention by those skilled in that art
Mind and range.In this way, if these modifications and changes of the present invention belongs to the range of the claims in the present invention and its equivalent technologies
Within, then the invention is also intended to include including these modification and variations.
Claims (8)
1. a kind of vibrating type viscometer, by controller control while the viscosity and temperature of automatic measurement liquid, including following components：
For fixing driving device（4）Fixing piece（1）；It is characterized in that,
The vibration spring plate made of ferrimagnet（2）, the vibration spring plate（2）One end（21）With the fixing piece（1）It is fixed
Connection, the vibration spring plate（2）The other end is free end（22）；
Distance-sensor（3）, it is located at the vibration spring plate（2）Fixing end and free end between close free end（22）Consolidate
Determine part（1）On, when the vibration spring plate（2）Free end（22）To the distance-sensor（3）After predetermined displacement, triggering
Distance-sensor（3）Another working condition is changed into from a kind of working condition, and issues electric signal；
Driving device（4）, including driving circuit（41）With driving main body（42）, the driving circuit（41）By controller（5）Control
System, to the driving main body（42）Predetermined resonant frequency signal is provided；
Temperature detection device（5）, including temp probe（51）And processing circuit（52）, temp probe（51）For sample
Temperature detection, processing circuit（52）The simulation signal for the temperature that will test is changed into digital signal；
With the distance-sensor（3）, driving device（4）With the controller of connection（6）, keep driving device（4）Vibration frequency
Constant, collection distance-sensor（3）Triggering moment, at the beginning of starting of oscillation to distance-sensor issue electric signal time
The temperature data of difference and sample.
2. the vibrating type viscometer according to claim 1, which is characterized in that further include being used made of ferrimagnet
In stablizing the vibration spring plate（2）The baffle of vibration（7）, the baffle（7）With the vibration spring plate（2）Parallel arrangement, and institute
State baffle（7）Positioned at the vibration spring plate（2）Far from the fixing piece（1）Side, the baffle（7）At least one end with
The fixing piece（1）It is fixedly connected.
3. according to claim 1 or vibrating type viscometer described in 2, which is characterized in that the driving main body（42）Including iron core
（421）And driving coil（422）；The driving coil（422）Magnetic field is generated after energization, makes vibration spring plate（2）Vibration.
4. vibrating type viscometer according to claim 3, which is characterized in that in the driving coil（422）Disengaging two
Protection circuit is parallel between end（8）.
5. vibrating type viscometer according to claim 1 or 2, which is characterized in that further include containing the container of solvent and holding
Row mechanism, the executing agency is when the viscosity of fluid to be measured is greater than predetermined value, according to controller（6）Instruction will be in container
Solvent is blended into fluid to be measured.
6. a kind of Detection Method of Liquid Viscosity, it is characterised in that：Include the following steps,
S1, in controller（6）Control under, driving circuit（42）To driving coil（422）The square-wave pulse of preset frequency is provided
Signal；
S2, pulse signal make driving coil（422）Generate magnetic field identical with preset frequency；
S3, the magnetic field suction vibration spring plate（2）Deformation, to distance-sensor（3）It is mobile, when the vibration spring plate（2）From
By holding（22）To the distance-sensor（3）After predetermined displacement, distance-sensor is triggered（3）Change from a kind of working condition
For another working condition, and to controller（6）Issue electric signal；
S4, controller control the driving coil（422）Power-off, the vibration spring plate（2）Restore reset condition；In cycles；
Controller（6）According to vibration spring plate（2）Distance-sensor is arrived at the beginning of starting of oscillation（3）It the time difference for issuing electric signal, finds out
The viscosity of liquid.
7. Detection Method of Liquid Viscosity according to claim 6, it is characterised in that：It further include S5, temperature-compensating step,
Controller（6）According to temp probe（51）Temperature go out the current environment measured temperature, with calibration when environment temperature carry out
Comparison is modified according to viscosity of the comparison result to the liquid that S4 step is found out.
8. Detection Method of Liquid Viscosity described according to claim 6 or 7, it is characterised in that：It is also wrapped after S4 or S5 step
It includes, S6, viscosity-adjusting agent step, controller（6）It is big in the viscosity of fluid to be measured according to actual viscosity or revised actual viscosity
When predetermined viscosity value, according to controller（6）Command execution unit solvent is blended into fluid to be measured, it is current viscous to adjust
Degree.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504854A (en) * | 2020-04-13 | 2020-08-07 | 中国矿业大学 | Temperature difference type measuring device and method for viscosity of Newton fluid |
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| DE102004053447A1 (en) * | 2004-11-05 | 2006-05-24 | Kramm, Karl Ulrich, Prof. Dr. Ing. | Bar viscometer, for measuring fluid rheological property, has bar whose maximum amplitude is present at flat sensor blade, where bar length is m-times of lambda divided by four, where lambda is wavelength of longitudinal oscillation of bar |
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| CN105842120A (en) * | 2016-05-19 | 2016-08-10 | 山东大学 | Continuous viscosity measuring device and method in piping physical modeling experiment |
| CN206146782U (en) * | 2016-09-29 | 2017-05-03 | 北京世通科创技术有限公司 | Vibrating type viscosimeter |
| CN208459216U (en) * | 2018-06-07 | 2019-02-01 | 深圳市鸿曙科技有限公司 | Vibrating type viscometer |
| CN208452571U (en) * | 2018-06-07 | 2019-02-01 | 深圳市鸿曙科技有限公司 | The ink circulation barrel of intaglio press |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111504854A (en) * | 2020-04-13 | 2020-08-07 | 中国矿业大学 | Temperature difference type measuring device and method for viscosity of Newton fluid |
| CN111504854B (en) * | 2020-04-13 | 2021-12-31 | 中国矿业大学 | Temperature difference type measuring device and method for viscosity of Newton fluid |
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