TWI664413B - Apparatus and method for viscosity measurement of fluids - Google Patents

Abstract

The invention discloses a fluid viscosity detection device, which includes: a plate body, at least one injection tank, and a plurality of fluid viscosity analysis modules; each fluid viscosity analysis module includes: a first-rate channel and an analysis tank, and the analysis tank further includes a plurality of Viscometer slot. The invention further discloses a fluid viscosity detection method. The fluid viscosity detection device is connected to a motor, a fluid to be measured is injected into the at least one injection tank, and the fluid is driven to rotate and drive the fluid to the fluid Place the viscosity meter in the slot and read the viscosity scale value.

Description

Fluid viscosity detection device and operation method thereof

The invention relates to a viscosity detection device and an operation method thereof, and more particularly to a liquid fluid viscosity detection device and an operation method thereof.

The traditional measurement of fluid viscosity properties (Shear viscosity) in shear rheology can be divided into two types. The first is drag flows, which generate shear through a moving object and another fixed object. Shear stress, such as a parallel-plate viscometer; the second is pressure-driven flows, which mainly generate shear stress when driving fluid through a closed flow channel through pressure, such as a capillary viscometer (Capillary viscometer).

Most capillary viscometers require manual measurement of the flow time to calculate the viscosity of the fluid, and usually a large amount of liquid is used in the test sample (requires tens to hundreds of milliliters), and in biomedical testing or focused care testing (Point -of-care testing) For application, patient samples are usually only 1-5 ml. Therefore, although this type of detection method is cheaper, the accuracy of measurement is easily subject to errors caused by human judgment and operation, it is difficult to apply to small or expensive liquids, and the detection process is quite time-consuming.

On the other hand, rotary viscometers use less fluid than capillary viscometers (at least about 1 ml is available) and have higher accuracy. However, most of the instruments for rotary viscometers are more High price point, and when the rotating viscometer is used to measure very low viscosity samples (for example: aqueous solution, extremely dilute polymer solution), it will be easy to generate secondary flow due to the high speed required, which will lead to test results. Inaccurate.

In view of the above problems, the development of a fluid viscosity detection device with a small amount of fluid, a simple and fast detection process, and a low price is necessary for biomedical testing or the rare viscosity measurement of samples

In order to achieve the above object, the present invention discloses a fluid viscosity detection device, which includes: a dish body, at least one injection tank, and a plurality of fluid viscosity analysis modules. The plurality of fluid viscosity analysis modules include: a first-class channel, an analysis tank, and a plurality of viscometer position tanks; the injection tank is set at the center of gravity of the plate body of the fluid viscosity detection device, and is provided by each The fluid channel included in a fluid viscosity analysis module connects each fluid viscosity analysis module with the injection tank.

Furthermore, the fluid viscosity detection device is further connected to a centrifugal platform, and the centrifugal platform includes a motor for driving the fluid viscosity detection device to rotate.

Furthermore, the plurality of fluid viscosity analysis modules include: a first fluid viscosity analysis module, a second fluid viscosity analysis module, a third fluid viscosity analysis module, and a fourth fluid viscosity analysis module.

Furthermore, the cross-sectional area of the flow channel in the fourth fluid viscosity analysis module is the largest, and the cross-sectional area of the flow channel in the third fluid viscosity analysis module is only smaller than that of the flow channel in the fourth fluid viscosity analysis module. Cross-sectional area, the cross-sectional area of the flow channel in the second fluid viscosity analysis module is only larger than the cross-sectional area of the flow channel in the first fluid viscosity analysis module, and the first fluid viscosity analysis The cross-sectional area of the flow channel in the module is the smallest.

The invention further discloses a fluid viscosity detection method, which comprises: placing a fluid to be measured into an injection tank of one of the fluid viscosity detection devices; activating a centrifugal platform to rotate the fluid viscosity detection device; and distributing the fluid to be measured to In the plurality of fluid viscosity analysis modules, the plurality of viscometer position slots are read; and by reading a scale of the fluid to be measured on the plurality of viscometer position slots, the viscosity detection of the fluid to be measured can be easily achieved. When the fluid to be measured flows in a plurality of analysis tanks, it must be in contact with one or both of the upper and lower sides of the analysis tank.

The foregoing brief description of the present invention aims to provide a basic description of several aspects and technical features of the present invention. The brief description of the present invention is not a detailed description of the present invention. Therefore, its purpose is not to specifically list the key or important elements of the present invention, nor to define the scope of the present invention, but to present several concepts of the present invention in a concise manner.

100‧‧‧ Fluid viscosity detection device

100’‧‧‧ Fluid viscosity detection device

1‧‧‧ Fluid viscosity analysis module

11‧‧‧The first fluid viscosity analysis module

12‧‧‧Second fluid viscosity analysis module

13‧‧‧Third fluid viscosity analysis module

14‧‧‧Fourth fluid viscosity analysis module

2‧‧‧ injection tank

3‧‧‧ runner

31‧‧‧First runner

32‧‧‧Second runner

33‧‧‧ third runner

34‧‧‧Fourth runner

4‧‧‧analysis tank

41‧‧‧The first analysis slot

42‧‧‧Second analysis slot

5‧‧‧Viscosity meter slot

6‧‧‧ scale

7‧‧‧ fluid to be measured

71‧‧‧The first fluid to be measured

72‧‧‧Second test fluid

8‧‧‧ dish

a1‧‧‧Minimum scale of the first module

a2‧‧‧Maximum scale of the first module

b1‧‧‧Minimum scale of the second module

b2‧‧‧Maximum scale of the second module

c1‧‧‧Minimum scale of the third module

c2‧‧‧Maximum scale of the third module

d1‧‧‧Minimum scale of the fourth module

d2‧‧‧Maximum scale of the fourth module

S01 ~ S04‧‧‧step

ω ‧‧‧speed

FIG. 1 is a schematic diagram of a fluid viscosity detection device of the present invention

FIG. 2 is a flow chart of a fluid viscosity detection method of the present invention

FIG. 3 is a schematic diagram illustrating the viscosity of different fluids to be measured in the fluid viscosity detecting device of the present invention.

FIG. 4 is a schematic diagram of a preferred embodiment of a fluid viscosity detection device of the present invention.

FIG. 5 is a schematic diagram of another preferred embodiment of the fluid viscosity detection device of the present invention.

In order to understand the technical characteristics and practical effects of the present invention, and can be implemented in accordance with the contents of the description, the preferred embodiment shown in the figure is further described in detail as follows: About the fluid viscosity detection device of the present invention and its Method of operation, first fluid sticky For a part of the degree detection device, please refer to FIG. 1, which is a schematic diagram of a fluid viscosity detection device of the present invention. The fluid viscosity detection device 100 includes: a dish body 8; at least one injection groove 2 provided at the center of gravity of the dish body 8; and a plurality of fluid viscosity analysis modules 1 connected to the injection groove 2 individually. Among them, each fluid viscosity analysis module 1 further individually includes: a first-stage channel 3 connected to the injection tank 2; and an analysis tank 4 connected to the flow channel 3, and the analysis tank 4 further includes a plurality of viscosity position measuring tanks. 5.

In this embodiment, the fluid viscosity detection device 100 is connected to a centrifugal platform (not shown). The centrifugal platform further includes a motor for driving the disc body 8 of the fluid viscosity detection device 100 to rotate clockwise or counterclockwise.

The fluid viscosity detection device 100 can be further connected to a temperature control device (not shown). For a liquid fluid, an increase in temperature will reduce the viscosity of the liquid, and a decrease in temperature will increase the viscosity of the liquid. In order to improve the accuracy of the fluid viscosity detection, In addition, the fluid viscosity detection device 100 can be further connected to a temperature control device, so that the temperature during the detection process of the fluid viscosity detection device can be maintained in a certain range.

In this embodiment, the fluid to be measured 7 is injected into the injection tank 2, wherein the volume of the injection tank 2 is preferably between 0.001 and 100 milliliters (ml), and more preferably between 0.1 and 1 milliliters. The fluid to be measured 7 is a liquid.

In this embodiment, the number of the plurality of fluid viscosity analysis modules 1 is four, including: a first fluid viscosity analysis module 11, a second fluid viscosity analysis module 12, and a third fluid viscosity analysis module. Group 13 and a fourth fluid viscosity analysis module 14, wherein each of the fluid viscosity analysis modules 1 includes a plurality of viscosity gauge slots 5 included in the analysis tank 4 and a plurality of scales 6 are provided for the convenience of testing personnel. The viscosity of the fluid to be measured 7 is analyzed. In other possible embodiments, the number of the plurality of fluid viscosity analysis modules 1 may be greater than or less than four, and the number may depend on According to the free adjustment of technical personnel, the present invention should not be limited to this.

The cross-sectional area of the flow channel (that is, the fourth flow channel 34) of the fourth fluid viscosity analysis module 14 is the largest; the cross-sectional area of the flow channel (that is, the third flow channel 33) in the third fluid viscosity analysis module 13 Only smaller than the cross-sectional area of the flow channel (ie, the fourth flow channel 34) in the fourth fluid viscosity analysis module 14; the cross-sectional area of the flow channel (ie, the second flow channel 32) in the second fluid viscosity analysis module 12 The area is only smaller than the cross-sectional area of the flow passage (ie, the third flow passage 33) in the third fluid viscosity analysis module 13, and is larger than the flow passage (ie, the first flow passage 31) in the first fluid viscosity analysis module 11. ); The cross-sectional area of the flow channel (ie, the first flow channel 31) in the first fluid viscosity analysis module 11 is the smallest. Through each fluid viscosity analysis module 1, the cross-sectional areas of the flow channels 3 of different sizes are individually included to increase the detection range of the fluid viscosity detection device 100.

The scale of the fourth fluid viscosity analysis module 14 is the largest (d2, d1); the scale of the third fluid viscosity analysis module 13 (c2, c1) is only smaller than the scale of the fourth fluid viscosity analysis module 14. (d2, d1); the scale (b2, b1) in the second fluid viscosity analysis module 12 is only smaller than the scale (c2, c1) in the third fluid viscosity analysis module 13, and is only larger than the first The scale (a1, a2) of the fluid viscosity analysis module 11; the scale (a1, a2) in the first fluid viscosity analysis module 11 is the smallest, and the maximum scale d2 of the fourth module is greater than the minimum scale d1 of the fourth module; The third module maximum scale c2 is larger than the third module minimum scale c1; the second module maximum scale b2 is larger than the second module minimum scale b1; the first module maximum scale a2 is larger than the first module minimum scale a1.

In this embodiment, the material of the dish body 8, the injection tank 2, and the plurality of fluid viscosity analysis modules 1 may be glass quartz, or may be polymethyl methacrylate (PMMA), polycarbonate (PC), polymer Plastic polymers such as ethylene terephthalate (PET), polyvinyl chloride (PVC), or polypropylene (PP); further, these materials are preferably transparent, and inspectors can pass through transparent glass or plastic The glue polymer observes the position where the fluid 7 to be measured flows in the fluid viscosity detection device 100.

For a fluid viscosity detection method of the present invention, please refer to FIG. 2, which is a flowchart of a fluid viscosity detection method of the present invention. The fluid viscosity detection method steps include: (S01) placing a fluid to be measured 7 into an injection tank 2 of one of the aforementioned fluid viscosity detection devices 100; (S02) activating a centrifugal platform to rotate the fluid viscosity detection device 100; (S03) ) The fluid to be measured 7 is distributed to the plurality of viscosity meter slots 5 in the plurality of fluid viscosity analysis modules 1; (S04) and the fluid to be measured 7 is read in the plurality of viscosity meter slots 5 A scale of 6 can easily reach the viscosity detection of the fluid to be measured.

In step (S01), the fluid to be measured 7 is a liquid fluid, and the volume of the injection tank 2 of the fluid viscosity detection device 100 ranges from 0.001 to 100 milliliters (ml).

In step (S02), the fluid viscosity detection device 100 is set on the centrifugal platform. When the motor of the centrifugal platform is started, the centrifugal platform drives the disc body 8 of the fluid viscosity detection device 100 to rotate, and transmits the centrifugal force generated during the rotation ( Centrifugal Force), which drives the fluid to be measured 7 in the injection tank 2 to reciprocate several fluid viscosity analysis modules 1 separately. The centrifugal force is defined as follows: F _cen = ρω ² r where ρ is the density of the fluid to be measured (cm ³ / g), ω is the motor rotation speed (rpm), and r is the radius of the injection tank (cm).

In step (S03), when the fluid to be measured 7 flows out through the flow channel 3 and is distributed to the plurality of viscosity gauge slots 5 included in the analysis tank 4 in the plurality of fluid viscosity analysis modules 1, the fluid to be measured 7 is subject to the Coriolis Force generated when the fluid viscosity detection device 100 rotates, and generates a flow opposite to the direction of rotation of the motor. The Coriolis force is defined as follows: F _cor = -2 ρωv _r where ρ is to be Measure fluid density (cm ³ / g), ω is the motor speed (rpm), and v _r is the flow channel speed (cm / s) of the fluid to be measured.

It can be known from the Coriolis force formula that the faster the flow velocity of the fluid 7 to be measured is, the stronger the Coriolis force is. When the fluid to be measured 7 flows out of the flow channel 3, the viscosity of different fluids to be measured will have different initial velocities, and the Coriolis force on the fluid to be measured 7 will also be different. Therefore, the fluid to be measured 7 with different viscosities will flow into different viscosity gauges. In the tank 5, this principle can be used to quickly distinguish the fluids 7 to be measured with different viscosities in the viscometer slot 5. Furthermore, the viscosity detection range of the fluid to be measured 7 can be increased by changing the cross-sectional area of the outlet of the flow channel 3, the average radius position of the dish 8 or the motor speed of the centrifugal platform.

In step (S04), wait for a period of time, after all the fluids 7 to be measured flow from the injection tank 2 into the viscometer gage 5 in the analysis tank 4 through the flow channel 3, stop the motor, and then read the data. The scale 6 of the measuring fluid 7 on the viscometer slot 5 can easily know the viscosity of the fluid 7 to be measured.

According to the foregoing fluid viscosity detection device and its operation method, please refer to FIG. 3, which is a schematic diagram of different fluid viscosity detection fluid to be measured in the fluid viscosity detection device of the present invention. In this embodiment, the first fluid to be measured 71 is a liquid with a lower viscosity, and the second fluid to be measured 72 is a liquid with a higher viscosity. When the first and second fluids 71 and 72 are injected with the same fluid viscosity, respectively, The injection tank 2 of the device 100 and the rotation of the centrifugal platform motor are started; after waiting for a period of time, the centrifugal force will drive the first and second fluids to be measured 71 and 72 to flow out through the flow channel 3 and be distributed to the fluid viscosity analysis module 1 (this The example is the first fluid viscosity analysis module 11) In the viscometer slot 5 of the analysis tank 4, it can be clearly seen from the scale 6 on the viscometer slot 5 that the maximum scale a2 of the first module is larger than the first mold Group minimum scale a1, that is, the viscosity of the second fluid to be measured 72 is higher than the viscosity of the first fluid to be measured 71, thereby distinguishing the fluid viscosities of different fluids to be measured.

According to the aforementioned fluid viscosity detection device 100 and its operation method, please refer to FIG. 4, which is a schematic diagram of a preferred embodiment of the fluid viscosity detection device of the present invention. In this embodiment, a plurality of fluid viscosity analysis modules 4 are individually connected to the injection tank 2 in parallel. First, the fluid to be measured 7 (about 0.2 ml in this embodiment) is injected into the center of the disc body 8 of the fluid viscosity detection device 100 Into the injection tank 2; then start the motor of the centrifugal platform to a specific speed ω (about 3000 rpm in this embodiment) and rotate the plate 8 of the fluid viscosity detection device 100, so that the fluid to be measured is separated into four flow channels 3 by centrifugal force Viscosity analysis module 1 with different cross-sectional areas.

The cross-sectional area of the flow channel (that is, the fourth flow channel 34) of the fourth fluid viscosity analysis module 14 is the largest; the cross-sectional area of the flow channel (that is, the third flow channel 33) in the third fluid viscosity analysis module 13 Only smaller than the cross-sectional area of the flow channel (ie, the fourth flow channel 34) in the fourth fluid viscosity analysis module 14; the cross-sectional area of the flow channel (ie, the second flow channel 32) in the second fluid viscosity analysis module 12 The area is only smaller than the cross-sectional area of the flow passage (ie, the third flow passage 33) in the third fluid viscosity analysis module 13, and is larger than the flow passage (ie, the first flow passage 31) in the first fluid viscosity analysis module 11. ); The cross-sectional area of the flow channel (ie, the first flow channel 31) in the first fluid viscosity analysis module 11 is the smallest.

Due to the different cross-sectional areas of the flow channel 3 of the four viscosity analysis modules 1, the flow velocity of the fluid 7 to be measured out of the flow channel 3 is also different (the smaller the cross-sectional area of the flow channel, the faster the flow velocity of the fluid to be measured), making the fluid 7 to be measured Coriolis forces of different magnitudes then flow into the viscometer slot 5 of the four viscosity analysis modules 1; after all the fluid 7 to be measured flows into the viscometer slot 5 in each analysis tank 4 (about 1 in this embodiment) Minutes), stop the motor rotation, and obtain the fluid viscosity of the fluid 7 to be measured according to the scale 6 in the viscometer slot 5 where the fluid 7 to be measured is located. In this embodiment, the minimum scale of the first module a1 is 1cP, the maximum scale of the first module a2 is 15cP; the minimum scale of the second module b1 is 20cP, and the maximum scale of the second module b2 is 130cP; the third module The minimum scale c1 is 200cP, and the maximum scale c2 of the third module is 800cP; the minimum scale d1 of the fourth module is 1000cP, and the maximum scale d2 of the fourth module is 2000cP. According to the figure, the fluid viscosity of the fluid 7 to be measured is about 50 to 60cP.

Please refer to FIG. 5, which is a schematic diagram of another preferred embodiment of the fluid viscosity detection device of the present invention. The fluid viscosity detection device 100 'includes: a dish (not shown); at least one injection tank 2 disposed in the dish; a first fluid viscosity analysis module 11 including: a first flow channel 31 and the at least An injection tank 2 is connected; and a first analysis tank 41 is connected to the first flow channel 31; and a second fluid viscosity analysis module 12 includes: a second flow channel 32 and the first fluid viscosity analysis module The group 12 (first analysis tank 41) is connected; and a second analysis tank 42 is connected to the second flow channel 32. The first analysis slot 41 and the second analysis slot 42 each include a plurality of viscometer position slots 5, and the plurality of viscometer position slots 5 are provided with a plurality of scales 6.

In this embodiment, the number of the fluid viscosity analysis modules 1 is two, which are connected to the injection tank 2 in a serial manner, and the serial manner is that the first analysis tank 41 of the first fluid viscosity analysis module 11 passes through the first flow channel. 31 is connected to the injection tank 2, and the second analysis tank 42 of the second fluid viscosity analysis module 12 is connected to the first fluid viscosity analysis module 11 (the first analysis tank 41) through the second flow channel 32. In other possible embodiments, the number of the plurality of fluid viscosity analysis modules 1 may be greater than or less than two, and the number may be adjusted freely by a technician, and the present invention should not be limited to this.

In this embodiment, the cross-sectional area of the flow passage (ie, the second flow passage 32) of the second fluid viscosity analysis module 12 is the largest, and the flow passage (ie, the first flow passage 31) in the first fluid viscosity analysis module 11 ) Has the smallest cross-sectional area. Because the cross-sectional area of the flow channel 3 of the viscosity analysis module 1 is different, the flow velocity of the fluid 7 to be measured out of the flow channel 3 is also different (the smaller the cross-sectional area of the flow channel, the faster the flow velocity of the fluid to be measured). This increases the measurement range of the fluid 7 to be measured. In other possible embodiments, if the number of fluid viscosity analysis modules 1 is increased in series, and the flow channel 3 of the fluid viscosity analysis module 1 is increased to be greater than the second flow channel 32, depending on By analogy, the present invention should not be limited to this.

In this embodiment, the steps of the fluid viscosity detection method are as follows: first, the fluid 7 to be measured is injected into the central injection tank 2 of the fluid viscosity detection device 100 '; then the motor of the centrifugal platform is started to rotate the fluid viscosity detection device 100' to a specific rotation speed ω The plate body makes the fluid 7 to be measured flow to the first flow path 31 by centrifugal force, and flows into the first analysis tank 41 along the first flow path 31. At this time, when the viscosity of the fluid to be measured 7 is small, the fluid to be measured 7 is driven by the Coriolis force and flows into the viscometer groove 5 of the first analysis tank 41. The rotation of the motor is stopped, and the scale 6 is read to know Measure the viscosity of the fluid 7; if the viscosity of the fluid 7 to be measured is large, the fluid 7 to be measured may flow to the second flow channel 32 connected to the first fluid viscosity analysis module 11 (the first analysis tank 41), It flows into the second analysis tank 42 along the second flow channel 32, and is driven by the Coriolis force and flows into the viscometer slot 5 of the second analysis tank 42. Stop the motor rotation, read the scale 6 to know the test Fluid viscosity of fluid 7. When the fluid to be measured 7 flows in the first analysis tank 41 or the second analysis tank 42, the fluid 7 to be measured must be in contact with one of the first analysis tank 41 or the second analysis tank 42 or simultaneously with the first analysis tank 41 One analysis tank 41 and the second analysis tank 42 are in contact simultaneously.

To sum up, the fluid viscosity detection device of the present invention and its operation method, during the detection process, only a small amount of the fluid to be measured is injected into the injection tank of the dish, and then placed on the motor of the centrifugal platform to rotate, and the short-term The fluid viscosity of the fluid to be measured can be seen intuitively within time, and no artificial calculation is required. In addition, the power of the fluid viscosity detection device can be completed with a single motor, and the overall instrument cost does not need to be too high.

However, the above are only preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited in this way, that is, simple equivalent changes and modifications made according to the scope of the patent application and description of the present invention, such as changes Motor speed, runner diameter (cross-sectional area), and fluid analysis tank The method of changing the offset angle of the fluid with the radial position and applying it to the viscosity detection are still within the scope of the present invention.

Claims (15)

A fluid viscosity detection device includes: a dish body; at least one injection groove provided in the dish body; and a plurality of fluid viscosity analysis modules individually connected to the injection groove; wherein each fluid viscosity analysis module further includes: : A first-rate channel connected to the injection tank; and an analysis tank connected to the flow channel, the analysis tank including a plurality of viscometer position slots; wherein each viscometer position slot has at least one scale. The fluid viscosity detection device as described in claim 1, wherein the fluid viscosity detection device is further connected to a centrifugal platform. The fluid viscosity detecting device as described in claim 2, wherein the centrifugal platform is provided with a motor. The fluid viscosity detection device as described in claim 2, wherein the fluid viscosity detection device further includes a temperature control system. The fluid viscosity detecting device as described in claim 2, wherein the volume of the injection tank is between 0.001 and 100 ml. The fluid viscosity detection device as described in claim 2, wherein the number of the plurality of fluid viscosity analysis modules is four, including: a first fluid viscosity analysis module, a second fluid viscosity analysis module, and a first fluid viscosity analysis module. A three-fluid viscosity analysis module and a fourth fluid viscosity analysis module. The fluid viscosity detection device as described in claim 6, wherein the cross-sectional area of the flow channel in the fourth fluid viscosity analysis module is the largest, and the cross-sectional area of the flow channel in the third fluid viscosity analysis module is only smaller than the fourth The cross-sectional area of the flow channel in the fluid viscosity analysis module, the cross-sectional area of the flow channel in the second fluid viscosity analysis module is only larger than the cross-sectional area of the flow channel in the first fluid viscosity analysis module, and the first The cross-sectional area of the flow channel is the smallest in the fluid viscosity analysis module. A fluid viscosity detection device includes: a dish body; at least one injection groove provided in the dish body; a first fluid viscosity analysis module including: a first flow channel connected to the injection groove; and a first analysis And a second fluid viscosity analysis module, comprising: a second fluid channel connected to the first fluid viscosity analysis module; and a second analysis groove connected to the second fluid viscosity analysis module Road connection. The fluid viscosity detecting device as described in claim 8, wherein the first analysis tank and the second analysis tank each include a plurality of viscosity position measuring tanks. The fluid viscosity detection device as described in claim 9, wherein the plurality of viscosity position slots are provided with a plurality of scales. The fluid viscosity detection device as described in claim 10, wherein the fluid viscosity detection device is further connected to a centrifugal platform. The fluid viscosity detection device according to claim 11, wherein the centrifugal platform is provided with a motor. The fluid viscosity detection device as described in claim 11, wherein the fluid viscosity detection device further includes a temperature control system. The fluid viscosity detecting device according to claim 11, wherein the volume of the injection tank is between 0.001 and 100 ml. A method for operating a fluid viscosity detection device includes: placing a fluid to be measured into at least one injection tank of a fluid viscosity detection device; activating a centrifugal platform to rotate the fluid viscosity detection device; and the fluid to be measured being subjected to fluid viscosity detection After the Coriolis Force generated by the rotation of the device is actuated, the Coriolis Force is distributed to the plurality of viscometer slots in the plurality of analysis slots; and the scales of the fluid to be measured on the plurality of viscometer slots are read; When the fluid to be measured flows in the plurality of analysis tanks, it is in contact with one or both sides of the upper and lower sides of the plurality of analysis tanks.