CN106680148A - Viscosity testing device and testing method thereof - Google Patents
Viscosity testing device and testing method thereof Download PDFInfo
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- CN106680148A CN106680148A CN201710141490.0A CN201710141490A CN106680148A CN 106680148 A CN106680148 A CN 106680148A CN 201710141490 A CN201710141490 A CN 201710141490A CN 106680148 A CN106680148 A CN 106680148A
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- 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
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Abstract
The invention discloses a viscosity testing device and a testing method thereof. The viscosity testing device comprises a pressure sensing system, a lifting system, a base, an outer cover, a measuring cup, a PLC control system, an enter key and a display device. The device disclosed by the invention is simple in principle, the pressure of a connecting rope is tested by the pressure sensing system under the control of the PLC system, so that the viscosity factor and viscosity are calculated or are automatically calculated by the PLC system, and the device is convenient to operate and accurate in test results; the lifting of a lifting platform in the device disclosed by the invention is controllable, the PLC system can control the lifting platform to go up and down at a constant speed, the pressure sensor system is sensitive, errors are reduced, the device has the advantages of being simple in structure, convenient in measurement, quick, accurate, convenient in operation and the like, and the device is applicable for testing the viscosity of various liquid samples.
Description
Technical field
The present invention relates to physical properties of fluids field of measuring technique, and in particular to a kind of viscosity test device and its method of testing.
Background technology
Viscosity is an important parameter for characterizing fluid properties, directly reflects the characteristic of different fluid, and viscosity measurement is wide
It is general to be applied to various social production fields.The flowing of fluid is the continuous modification process under gravity or the effect of other external force, such as
We are common when fluid flows in the duct, and the flow velocity at tube hub axle is most fast, slower closer to tube wall flow velocity, this explanation
The speed of inside each several part is differed during flow of fluid, there is speed difference between fluid layer, and fluid motion successively
Precisely due to fluid has viscosity, this is also the most important difference one of fluid and solid for transmission, the transmission of this speed difference motion
The viscosity of one fluid is substantially the macro manifestations of fluid molecule microcosmic effect, be caused by molecular force, therefore directly reflect
The characteristic of different fluid, viscosity is the degree of viscosity, also referred to as dynamic viscosity, the coefficient of viscosity or be coefficient of internal friction, different material
Viscosity is different.
In recent years, with science progress and industrial management modernization, the measurement of viscosity is increasingly important, and fluid glues
The measurement of degree is just improved step by step in the demand determined with fluid treatment process intermediate parameters that defines for fluid properties, with
Industrial expansion from now on, the range of application of viscosimetric analysis will also gradually expand, and the requirement of industrial viscosity measurement is also increasingly
Tend to variation, industrial viscosity measurement is in one and is in full swing and is applied to the stage of social practice.
The method of viscosity measurement is a lot, can be divided into capillary tube method, rotary process, flat band method, falling ball method, vibratory drilling method etc., its survey
Amount principle is different, and such as falling ball method is to make the movement of falling object during standard ball is put into testing liquid, is fallen by measuring it
Time calculate viscosity；Vibratory drilling method is vibrated in a fluid by making object, and measurement object is determined viscosity by viscous drag
Deng.
Falling ball method is to cause downward acceleration to ball with joint efforts to the resistance of ball and gravity using liquid, but viscosity
Too small liquid has big difference to the resistance of ball also very little, the at this time ratio between resistance and gravity, causes resultant error very
Greatly, ball terminal-velocity is too fast also causes to calculate very inconvenient.
Vibratory drilling method is usually used in the viscosity measurement of low-viscosity (mobile) liquid, and most melt viscosity measurements are in this way.Vibratory drilling method
Have the advantages that vibration period and attenuation measurement are convenient, amount of samples is few, convenient temperature control, but calculated without generally acknowledged desired viscosity
Formula.
Accordingly, it would be desirable to be improved, the more preferable Viscosity Measurement Methods of universality are found out, the degree of accuracy is higher, operated easier
Method.
The content of the invention
It is an object of the invention to regarding to the issue above, there is provided a kind of viscosity test device and its method of testing, this hair
Bright device simple and sensitive degree is high, easy to operate simple, the method for testing strong applicability of apparatus of the present invention, it is adaptable to which each scope is glued
The viscosity test of the liquid of degree.
The present invention provide technical scheme be：
A kind of viscosity test device, including：Pressure capsule system, jacking system, pedestal, outer cover, measuring cup, PLC controls
System, enter key, display；
The PLC control system is connected simultaneously by circuit with pressure capsule system, jacking system, enter key, display
Connection power supply；The PLC control system, display, enter key are located in pedestal；
The pressure capsule system includes pressure sensor, metal ball, connecting rope and hook, and institute's pressure sensor passes through
Hook, connecting rope and metal ball connection, the pressure sensor are fixedly installed on outer cover upper end；Wherein described metal ball can be
What any metal material was made, metal ball material is not limited, and metal ball is regular ball, can measure metal ball volume, connecting rope
Can be any material, the material that preferably plastics etc. are difficult to be corroded is made, such as polytetrafluoroethylene (PTFE), polyvinyl chloride；
The jacking system includes lifting platform, lifting motor and lifting controller；The lifting controller is by control
Lifting motor come control lifting platform move speed and move distance；The lifting platform is set in parallel on pedestal, the liter
Drop controller is arranged on pedestal side, and the PLC control system controls jacking system；
The operation principle of apparatus of the present invention is under the lift action of lifting platform, metal ball is immersed in tested viscosity sample
In liquid, the connecting rope and metal ball that are connected to pressure sensor systems are immersed in measuring cup by measured liquid phase to down
The viscous force (power that measurement sample viscosity causes) of uniform motion, the viscosity number of sample just can be as measured by pressure sensor
To viscous force value reflect, be subject to standard viscosity liquid tested viscosity factor k, the viscosity number of any liquid can be measured；Root
According to stress balance：T+f=G+F, wherein, F is the viscous force that metal ball is subject to sample liquid, and f is metal ball buoyancy, and G is metal ball
Gravity, T is connection rope tension, and F=μ Av, f=ρ gV, G=mg, ρ are sample rate, and μ is viscosity, and A is metal ball surface
Product, v is the speed of lifting platform motion, and V is metal ball volume, and m is metal ball quality, and g is acceleration of gravity, makes k=Av, k
=(T+ ρ gV-G)/μ, μ=(T+ ρ gV-G)/k, the volume of metal ball being related in the present invention, surface area and gravity, constant
All it is fixed value (V, A, G are constant) in the case of more metal ball, therefore pulling force T can be tested using standard viscosity liquid, due to standard
, it is known that k can be calculated, k is viscosity factor for the viscosity, mu of viscosity liquid, the sample of re-test other unknown viscosity, lifting platform speed
It is constant, by testing connection rope tension T, you can calculate sample viscosity.
Preferably, described device also includes：Temperature-compensating instrument, the temperature-compensating instrument includes temperature sensor, temperature
Controller；The temperature controller includes Cooling and heating blower；The Cooling and heating blower is arranged on measuring cup both sides, is bolted on
On the lifting platform, the Cooling and heating blower is provided with square shell, near the side hollow out of measuring cup, is set on the square shell
In thering is brandreth, the temperature sensor frame to insert measuring cup on described brandreth；The temperature sensor passes through circuit and institute
State PLC control system connection, temperature sensor test is obtained after temperature signal passes to PLC control system, the PLC controls
System processed controls the temperature controller to be adjusted temperature, and wherein the viscosity of liquid is understood variation with temperature and changed,
The effect of present invention addition temperature-compensating instrument is control test sample viscosity, and the result for testing it is accurate and repeatable, and this
The temperature-compensating instrument simple structure of invention, low cost.
Preferably, it is additionally provided with the brandreth and is detachably fixed folder for fixation measuring cup, fixation of the invention is clamping
Location survey measuring cup so that measuring cup will not moving influence test result in measurement process.
Preferably, the brandreth is bolted on the square shell upper end, and the brandreth is detachable.
The present invention also provides a kind of method of the tested viscosity of described viscosity test device, including：
Step 1, standard viscosity liquid is added in measuring cup, how much standard viscosity liquid depth does not limit, and usually surveys
At 2/3 altitude scale of measuring cup, the lifting platform is increased by PLC control system control lifting controller, soak metal ball
Not in standard viscosity liquid, the depth at least submerging is standard viscosity liquid 2/3 deeply and does not touch measuring cup bottom, then by PLC
Control system control lifting controller makes the lifting platform according to speed U uniform descents, and falling head is submerged no more than metal ball
Depth, be shown to the pulling force T of connecting rope on display by the pressure sensor, by formula k=(T+ ρ gV-G)/μ, its
Middle μ is dynamic viscosity, and T is connection rope tension, and ρ is standard viscosity liquid density, and V is metal ball volume, and g is acceleration of gravity, and k is
Viscosity factor, calculates k values；
Step 2, sample liquid is added in measuring cup, controls the lifting controller to make the lifting by PLC control system
Platform rises, and metal ball is immersed in sample liquid, and the depth at least submerging is the depth of sample liquid 2/3 and does not touch measuring cup bottom,
The lifting platform is set to be carried out at the uniform velocity according to consistent with speed U described in step 1 by PLC control system control lifting controller again
Decline, falling head is no more than the depth that metal ball is submerged, the pulling force T of connecting rope when the pressure sensor is by test sample1,
It is shown on display, by formula μ1=(T1+ρ1GV-G)/k, wherein μ1It is sample dynamic viscosity, T1Connect during for test sample
Splicing pulling force, ρ1It is the density of sample liquid, V is metal ball volume, and g is acceleration of gravity, and k is that step 1 is measured for viscosity factor,
The μ for calculating1Value is sample liquid viscosity number.
Preferably, methods described includes：
The PLC control system is provided with A, B-mode, wherein,
Mode A is correction mode, and the correction mode is to be programmed formula k=(T+ ρ gV-G)/μ by enter key
Input PLC control system, the tested viscosity factor k, μ are standard viscosity liquid dynamic viscosity, connecting rope when T is testing standard viscosity liquid
Pulling force, ρ is standard viscosity liquid density, and V is metal ball volume, and g is acceleration of gravity, and G is metal ball gravity；
B-mode is test pattern, and the test pattern is by formula μ by enter key1=(T1+ρ1GV-G)/k is compiled
Journey is input into PLC control system, test sample viscosity, mu1, wherein T1The pulling force of connecting rope, ρ during for test sample viscosity1It is sample liquid
Density, V is metal ball volume, and g is acceleration of gravity, and G is metal ball gravity；
First tested viscosity factor k, mode A is transferred to by PLC control system, using standard viscosity liquid tested viscosity factor k, will
After ρ, G, μ, V value are input in PLC control system, standard viscosity liquid is added in measuring cup, by PLC control system control
Lifting controller rises the lifting platform, metal ball is immersed in standard viscosity liquid, and the depth at least submerging is viscous for standard
Degree liquid 2/3 is deep and does not touch measuring cup bottom, then makes the lifting platform according to speed by PLC control system control lifting controller
Degree U uniform descents, falling head transmits the pulling force T of connecting rope no more than the depth that metal ball is submerged, the pressure sensor
To PLC control system, the k values that PLC control system is calculated automatically are shown on display；
Re-test sample fluid viscosity, B-mode is transferred to by PLC control system, by ρ1, G, k, V value be input to PLC control system
In after, sample liquid is added in measuring cup, control the lifting controller lifting platform is increased by PLC control system, make
Metal ball is immersed in sample liquid, and the depth at least submerging is sample liquid 2/3 deeply and does not touch measuring cup bottom, then by PLC
Control system control lifting controller makes the lifting platform according to speed U uniform descents, and falling head is submerged no more than metal ball
Depth, the pressure sensor is by the pulling force T of connecting rope1PLC control system is passed to, PLC control system is calculated automatically
The μ for going out1Value, is shown on display, obtains the sample liquid viscosity number.
Beneficial effects of the present invention are as follows：
1), principle of device of the invention is simple, and by PLC system control, pressure capsule system tests the pressure of connecting rope
So as to calculate or PLC system calculates viscosity factor and viscosity automatically and easy to operate, test result is accurate, present invention dress
Put lifting of lifting table controllable, PLC system lifting controllable platform is at the uniform velocity lifted, and pressure sensor systems are sensitive, reduce error, have
The advantages of simple structure, convenient, fast, accurate, easy to operate measurement, it is adaptable to the test of various fluid sample viscosity；This hair
The measuring cup of bright use is removably cleaned, convenient operation.
2), apparatus of the present invention method of testing is simple, can directly or indirectly measure the viscosity number for showing sample, instrumentation
Human error is reduced, viscosity test results accuracy is high.
Brief description of the drawings
Fig. 1 is viscosity test device figure of the present invention；
Fig. 2 is temperature controller structure chart of the present invention；
1 is viscosity test device, and 11 is pressure capsule system, 12 is jacking system, 13 is pedestal, 14 is outer cover, 15 are
Measuring cup, 16 be PLC control system, 17 be enter key, 18 be display, 19 be temperature-compensating instrument, 111 is connecting rope, and 112 are
Hook, 113 is pressure sensor, and 114 is metal ball, and 121 is lifting platform controller, and 122 is lifting platform, and 123 is lifting motor,
191 is temperature sensor, and 192 is temperature controller, 193 is brandreth, and 194 is geometrical clamp, and 1921 is square shell, and 1922 is cold
Air-heater.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
As shown in Figure 1-2, a kind of viscosity test device 1, including：Pressure capsule system 11, jacking system 12, pedestal 13,
Outer cover 14, measuring cup 15, PLC control system 16, enter key 17, display 18；
The PLC control system 16 is by circuit and pressure capsule system 11, jacking system 12, enter key 17, display
18 connections connect power supply simultaneously；The PLC control system 16, display 18, enter key 17 are located in pedestal 13；
The pressure capsule system 11 includes pressure sensor 113, metal ball 114, connecting rope 111 and hook 112, institute
Pressure sensor 113 is connected by hook 112, connecting rope 111 with metal ball 114, and the pressure sensor 113 is fixedly installed on
The upper end of outer cover 14；
The jacking system 12 includes lifting platform 122, lifting motor 123 and lifting controller 121；The elevating control
Device 121 controls the speed and move distance of the motion of lifting platform 122 by controlling lifting motor 123；The lifting platform 122 is flat
Row is arranged on pedestal 13, and the lifting controller 121 is arranged on the side of pedestal 13, the control lifting of the PLC control system 16
System 12；
The operation principle of apparatus of the present invention is under the lift action of lifting platform, metal ball is immersed in tested viscosity sample
In liquid, it is immersed in measuring cup the successively connecting rope and metal ball of pressure sensor systems and is subject to measured liquid phase to down
The viscous force (power that measurement sample viscosity causes) of uniform motion, the viscosity number of sample just can be as measured by pressure sensor
To viscous force value reflect, be subject to standard viscosity liquid tested viscosity factor k, the viscosity number of any liquid can be measured；Root
According to stress balance：T+f=G+F, wherein, F is the viscous force that metal ball is subject to sample liquid, and f is metal ball buoyancy, and G is metal ball
Gravity, T is connection rope tension, and F=μ Av, f=ρ gV, G=mg, ρ are sample rate, and μ is viscosity, and A is metal ball surface
Product, v is the speed of lifting platform motion, and V is metal ball volume, and m is metal ball quality, and g is acceleration of gravity, makes k=Av, k
=(T+ ρ gV-G)/μ, μ=(T+ ρ gV-G)/k, the volume and gravity of the metal ball being related in the present invention, are not changing metal
In the case of ball all be fixed value, therefore can using standard viscosity liquid test pulling force T, due to standard viscosity liquid viscosity, mu, it is known that
K can be calculated, k is viscosity factor, the sample of re-test other unknown viscosity, lifting platform speed is constant, is connected by testing
Rope tension T, you can calculate sample viscosity.
Present invention another embodiment preferred on the basis of the above, described device 1 also includes：Temperature-compensating instrument 19,
The temperature-compensating instrument 19 includes temperature sensor 191, temperature controller 192；The temperature controller 192 includes Cooling and heating blower
1922；The Cooling and heating blower 1922 is arranged on the both sides of measuring cup 15, and the Cooling and heating blower 1922 is provided with square shell 1921, leans on
The side hollow out of nearly measuring cup 15, the square shell 1921 is provided with brandreth 193, and the frame of the temperature sensor 191 is described
Brandreth 193 on insert measuring cup 15 in, test measuring cup in sample temperature；The temperature sensor 191 by circuit with
The PLC control system 16 is connected, and the test of the temperature sensor 191 is obtained after temperature signal passes to PLC control system 16,
Temperature such as test does not meet with default measurement temperature, and the PLC control system 16 controls the temperature controller 192 right
Temperature is adjusted, and the refrigeration switch of Cooling and heating blower is started when temperature is high, is adjusted, if temperature is low, starts cold-hot wind
The heater switch of machine is adjusted, and changes, present invention addition temperature-compensating instrument because of the viscosity meeting variation with temperature of liquid
Effect be control test sample viscosity, the result for testing it is accurate and repeatable, and temperature-compensating instrument structure of the invention
Simply, low cost.
Present invention another embodiment preferred on the basis of the above, is additionally provided with the brandreth 193 and is detachably fixed
Folder 194 is used for fixation measuring cup, geometrical clamp fixation measuring cup of the invention so that measuring cup will not mobile shadow in measurement process
Ring test result.
Present invention another embodiment preferred on the basis of the above, the brandreth 193 is bolted on described
The upper end of square shell 1921, the brandreth is detachable.
The method of the tested viscosity of viscosity test device of the invention, including：
Step 1, standard viscosity liquid is added in measuring cup, how much standard viscosity liquid does not limit, usually measuring cup
2/3 scale at, control the lifting controller lifting platform is increased by PLC control system, metal ball is immersed in standard
In viscosity liquid, the depth at least submerging is standard viscosity liquid 2/3 deeply and does not touch measuring cup bottom, then by PLC control system
Control lifting controller makes the lifting platform according to speed U uniform descents, and falling head is no more than the depth that metal ball is submerged, institute
Pressure sensor is stated by the pulling force T of connecting rope, is shown on display, by formula k=(T+ ρ gV-G)/μ, wherein μ is power
Viscosity, T is connection rope tension, and ρ is standard viscosity liquid density, and V is metal ball volume, and g is acceleration of gravity, and k is viscosity factor,
Calculate k values；
Step 2, sample liquid is added in measuring cup, controls the lifting controller to make the lifting by PLC control system
Platform rises, and metal ball is immersed in sample liquid, and the depth at least submerging is the depth of sample liquid 2/3 and does not touch measuring cup bottom,
The lifting platform is set to be carried out at the uniform velocity according to consistent with speed U described in step 1 by PLC control system control lifting controller again
Decline, falling head is no more than the depth that metal ball is submerged, the pulling force T of connecting rope when the pressure sensor is by test sample1,
It is shown on display, by formula μ1=(T1+ρ1GV-G)/k, wherein μ1It is sample dynamic viscosity, T1Connect during for test sample
Splicing pulling force, ρ1It is the density of sample liquid, V is metal ball volume, and g is acceleration of gravity, and k is that step 1 is measured for viscosity factor,
The μ for calculating1Value is sample liquid viscosity number.
Another embodiment of method of testing of the present invention, methods described includes：
The PLC control system is provided with A, B-mode, wherein,
Mode A is correction mode, and the correction mode is to be programmed formula k=(T+ ρ gV-G)/μ by enter key
Input PLC control system, the tested viscosity factor k, μ are standard viscosity liquid dynamic viscosity, connecting rope when T is testing standard viscosity liquid
Pulling force, ρ is standard viscosity liquid density, and V is metal ball volume, and g is acceleration of gravity, and G is metal ball gravity；
B-mode is test pattern, and the test pattern is by formula μ by enter key1=(T1+ρ1GV-G)/k is compiled
Journey is input into PLC control system, test sample viscosity, mu1, wherein T1The pulling force of connecting rope, ρ during for test sample viscosity1It is sample liquid
Density, V is metal ball volume, and g is acceleration of gravity, and G is metal ball gravity；Wherein metal ball first weighs weight and calculates G values,
Densitometer test sample density, metal ball volume is used to calculate V values after can testing out diameter using slide measure again；
First tested viscosity factor k, mode A is transferred to by PLC control system, using standard viscosity liquid tested viscosity factor k, will
After ρ, G, μ, V value are input in PLC control system, default test temperature is not particularly limited, and is typically set to 25 DEG C, enters trip temperature
Compensation adjustment, standard viscosity liquid is added in measuring cup, is fixed measuring cup with geometrical clamp, by PLC control system control
Lifting controller rises the lifting platform, metal ball is immersed in standard viscosity liquid, and the depth at least submerging is viscous for standard
Degree liquid 2/3 is deep and does not touch measuring cup bottom, test temperature in temperature sensor insertion liquid, temperature not at 25 ± 0.5 DEG C, that
Temperature-compensating instrument is adjusted automatically by PLC control system so that temperature-compensating instrument plays a part of temperature-compensating, temperature
The lifting platform is made according to speed U uniform descents, falling head by PLC control system control lifting controller again after degree stabilization
No more than the depth that metal ball is submerged, the pulling force T of connecting rope is passed to PLC control system, PLC controls by the pressure sensor
The k values that system is calculated automatically, are shown on display；
Re-test sample fluid viscosity, B-mode is transferred to by PLC control system, by ρ1, G, k, V value be input to PLC control system
In after, sample liquid is added in measuring cup, control the lifting controller lifting platform is increased by PLC control system, make
Metal ball is immersed in sample liquid, and the depth at least submerging is for sample liquid 2/3 is deep and does not touch measuring cup bottom, first temperature-compensating
Make the lifting platform according to speed U uniform descents by PLC control system control lifting controller again, falling head is no more than gold
The depth of category ball submergence, the pressure sensor is by the pulling force T of connecting rope1PLC control system is passed to, PLC control system is certainly
The dynamic μ for calculating1Value, is shown on display, obtains the sample liquid viscosity number.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the embodiment with description.
Claims (6)
1. a kind of viscosity test device, it is characterised in that including：Pressure capsule system, jacking system, pedestal, outer cover, measurement
Cup, PLC control system, enter key, display；
The PLC control system is connected connection simultaneously with pressure capsule system, jacking system, enter key, display by circuit
Power supply；The PLC control system, display, enter key are located in pedestal；
The pressure capsule system includes pressure sensor, metal ball, connecting rope and hook, and institute's pressure sensor is by hanging
Hook, connecting rope and metal ball connection, the pressure sensor are fixedly installed on outer cover upper end；
The jacking system includes lifting platform, lifting motor and lifting controller；The lifting controller is lifted by controlling
Motor come control lifting platform move speed and move distance；The lifting platform is set in parallel on pedestal, the lifting control
Device processed is arranged on pedestal side, and the PLC control system controls jacking system.
2. viscosity test device as claimed in claim 1, it is characterised in that described device also includes：Temperature-compensating instrument, it is described
Temperature-compensating instrument includes temperature sensor, temperature controller；The temperature controller includes Cooling and heating blower；The Cooling and heating blower sets
Put in measuring cup both sides, the Cooling and heating blower is provided with square shell, near the side hollow out of measuring cup, on the square shell
Brandreth is provided with, during the temperature sensor frame inserts measuring cup on described brandreth；The temperature sensor by circuit with
PLC control system connection, the temperature sensor test is obtained after temperature signal passes to PLC control system, the PLC
Control system controls the temperature controller to be adjusted temperature.
3. viscosity test device as claimed in claim 1, it is characterised in that be additionally provided with the brandreth and be detachably fixed folder and use
In fixation measuring cup.
4. viscosity test device as claimed in claim 1, it is characterised in that the brandreth is bolted on described square
Shell upper end, the brandreth is detachable.
5. a kind of method of the tested viscosity of the viscosity test device as described in any in 1-4 such as claim, it is characterised in that bag
Include：
Step 1, standard viscosity liquid is added in measuring cup, controls the lifting controller to make the lifting by PLC control system
Platform rises, and metal ball is immersed in standard viscosity liquid, and the depth at least submerging is for standard viscosity liquid 2/3 is deep and does not touch survey
Measuring cup bottom, then the lifting platform is made according to speed U uniform descents, falling head by PLC control system control lifting controller
No more than the depth that metal ball is submerged, be shown to the pulling force T of connecting rope on display by the pressure sensor, by formula k
=(T+ ρ gV-G)/μ, wherein μ are dynamic viscosity, and T is connection rope tension, and ρ is standard viscosity liquid density, and V is metal ball volume, g
It is acceleration of gravity, k is viscosity factor, calculates k values；
Step 2, sample liquid is added in measuring cup, controls the lifting controller to make on the lifting platform by PLC control system
Rise, metal ball is immersed in sample liquid, the depth at least submerging is sample liquid 2/3 deeply and does not touch measuring cup bottom, then leads to
Crossing PLC control system control lifting controller makes the lifting platform according under carry out at the uniform velocity consistent with speed U described in step 1
Drop, falling head is no more than the depth that metal ball is submerged, the pulling force T of connecting rope when the pressure sensor is by test sample1, show
Show on display, by formula μ1=(T1+ρ1GV-G)/k, wherein μ1It is sample dynamic viscosity, T1Connected during for test sample
Rope tension, ρ1It is the density of sample liquid, V is metal ball volume, and g is acceleration of gravity, and k is that step 1 is measured for viscosity factor, meter
The μ for calculating1Value is sample liquid viscosity number.
6. the method for the tested viscosity of viscosity test device as claimed in claim 5, it is characterised in that methods described includes：
The PLC control system is provided with A, B-mode, wherein,
Mode A is correction mode, and the correction mode is that formula k=(T+ ρ gV-G)/μ is programmed into input by enter key
PLC control system, the tested viscosity factor k, μ are standard viscosity liquid dynamic viscosity, the drawing of connecting rope when T is testing standard viscosity liquid
Power, ρ is standard viscosity liquid density, and V is metal ball volume, and g is acceleration of gravity, and G is metal ball gravity；
B-mode is test pattern, and the test pattern is by formula μ by enter key1=(T1+ρ1GV-G)/k is programmed defeated
Enter PLC control system, test sample viscosity, mu1, wherein T1The pulling force of connecting rope, ρ during for test sample viscosity1For sample is liquid-tight
Degree, V is metal ball volume, and g is acceleration of gravity, and G is metal ball gravity；
First tested viscosity factor k, mode A is transferred to by PLC control system, using standard viscosity liquid tested viscosity factor k, by ρ, G,
After μ, V value are input in PLC control system, standard viscosity liquid is added in measuring cup, controls to lift by PLC control system
Controller rises the lifting platform, metal ball is immersed in standard viscosity liquid, and the depth at least submerging is standard viscosity liquid
2/3 is deep and do not touch measuring cup bottom, then controls the lifting controller to make the lifting platform according to speed U by PLC control system
Uniform descent, falling head passes to the pulling force T of connecting rope no more than the depth that metal ball is submerged, the pressure sensor
PLC control system, the k values that PLC control system is calculated automatically, is shown on display；
Re-test sample fluid viscosity, B-mode is transferred to by PLC control system, by ρ1, after G, k, V value is input in PLC control system,
Sample liquid is added in measuring cup, the lifting platform is increased by PLC control system control lifting controller, make metal ball
It is immersed in sample liquid, the depth at least submerging is sample liquid 2/3 deeply and does not touch measuring cup bottom, then controls system by PLC
System control lifting controller makes the lifting platform according to speed U uniform descents, and falling head is no more than the depth of metal ball submergence,
The pressure sensor is by the pulling force T of connecting rope1Pass to PLC control system, the μ that PLC control system is calculated automatically1Value,
It is shown on display, obtains the sample liquid viscosity number.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141490.0A CN106680148A (en) | 2017-03-10 | 2017-03-10 | Viscosity testing device and testing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710141490.0A CN106680148A (en) | 2017-03-10 | 2017-03-10 | Viscosity testing device and testing method thereof |
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| Publication Number | Publication Date |
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| CN106680148A true CN106680148A (en) | 2017-05-17 |
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ID=58828697
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| CN201710141490.0A Pending CN106680148A (en) | 2017-03-10 | 2017-03-10 | Viscosity testing device and testing method thereof |
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| CN (1) | CN106680148A (en) |
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| CN110193000A (en) * | 2019-06-27 | 2019-09-03 | 莆田市涵江区江夏芦荟开发有限公司 | A kind of aloe face pack production technology and aloe face pack |
| CN110208146A (en) * | 2019-07-08 | 2019-09-06 | 莆田市烛火信息技术有限公司 | A kind of detection method of epoxy resin viscosity |
| CN110220820A (en) * | 2019-07-08 | 2019-09-10 | 莆田市烛火信息技术有限公司 | A kind of system for dismissing situation for intelligent measurement egg |
| CN110231250A (en) * | 2019-07-08 | 2019-09-13 | 莆田市烛火信息技术有限公司 | A kind of system for detecting epoxy resin viscosity |
| CN110320017A (en) * | 2019-07-08 | 2019-10-11 | 莆田市烛火信息技术有限公司 | A kind of smart home, which is beaten eggs, dismisses condition detection method |
| CN110967274A (en) * | 2019-12-12 | 2020-04-07 | 大连海事大学 | Comprehensive evaluation instrument for new mixing performance of cement-based material |
| CN112924330A (en) * | 2021-01-21 | 2021-06-08 | 重庆大学 | Oil viscosity detector |
| CN115127713A (en) * | 2022-06-21 | 2022-09-30 | 山东大学 | Method for testing buoyancy on pipe sheet of shield tunnel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108709829A (en) * | 2018-07-20 | 2018-10-26 | 首钢集团有限公司 | A kind of castable refractory pumping construction detection device |
| CN110193000A (en) * | 2019-06-27 | 2019-09-03 | 莆田市涵江区江夏芦荟开发有限公司 | A kind of aloe face pack production technology and aloe face pack |
| CN110220820B (en) * | 2019-07-08 | 2022-03-29 | 莆田市烛火信息技术有限公司 | System for intelligently detecting egg breaking condition |
| CN110220820A (en) * | 2019-07-08 | 2019-09-10 | 莆田市烛火信息技术有限公司 | A kind of system for dismissing situation for intelligent measurement egg |
| CN110231250A (en) * | 2019-07-08 | 2019-09-13 | 莆田市烛火信息技术有限公司 | A kind of system for detecting epoxy resin viscosity |
| CN110320017A (en) * | 2019-07-08 | 2019-10-11 | 莆田市烛火信息技术有限公司 | A kind of smart home, which is beaten eggs, dismisses condition detection method |
| CN110320017B (en) * | 2019-07-08 | 2021-06-08 | 莆田市烛火信息技术有限公司 | Intelligent home egg-breaking and egg-breaking state detection method |
| CN110208146A (en) * | 2019-07-08 | 2019-09-06 | 莆田市烛火信息技术有限公司 | A kind of detection method of epoxy resin viscosity |
| CN110208146B (en) * | 2019-07-08 | 2022-03-29 | 莆田市烛火信息技术有限公司 | Method for detecting viscosity of epoxy resin |
| CN110231250B (en) * | 2019-07-08 | 2022-03-29 | 莆田市烛火信息技术有限公司 | System for be used for detecting epoxy viscosity |
| CN110967274A (en) * | 2019-12-12 | 2020-04-07 | 大连海事大学 | Comprehensive evaluation instrument for new mixing performance of cement-based material |
| CN112924330A (en) * | 2021-01-21 | 2021-06-08 | 重庆大学 | Oil viscosity detector |
| CN112924330B (en) * | 2021-01-21 | 2023-03-14 | 重庆大学 | Oil viscosity detector |
| CN115127713A (en) * | 2022-06-21 | 2022-09-30 | 山东大学 | Method for testing buoyancy on pipe sheet of shield tunnel |
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Inventor after: Liang Jinlu Inventor after: Wang Xiaoli Inventor after: Hao Yuanyuan Inventor after: Huang Xueren Inventor after: Huang Xiaoyu Inventor after: Fan Shuanshi Inventor after: Shi Haixin Inventor after: Li Yuxing Inventor after: Xie Tingyuan Inventor after: Li Yan Inventor after: Fang Liping Inventor after: Zhong Yingying Inventor before: Liang Jinlu Inventor before: Wang Xiaoli Inventor before: Hao Yuanyuan Inventor before: Huang Xueren Inventor before: Tian Genlin Inventor before: Fan Shuanshi Inventor before: Shi Haixin Inventor before: Li Yuxing Inventor before: Xie Tingyuan Inventor before: Li Yan Inventor before: Fang Liping Inventor before: Zhong Yingying |
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Application publication date: 20170517 |