CN1815179A - Micro-sample gravity falling sphere viscosity measuring method and apparatus - Google Patents
Micro-sample gravity falling sphere viscosity measuring method and apparatus Download PDFInfo
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- CN1815179A CN1815179A CN 200510005282 CN200510005282A CN1815179A CN 1815179 A CN1815179 A CN 1815179A CN 200510005282 CN200510005282 CN 200510005282 CN 200510005282 A CN200510005282 A CN 200510005282A CN 1815179 A CN1815179 A CN 1815179A
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- 239000004952 Polyamide Substances 0.000 claims description 7
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- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 7
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Abstract
Said invented provides gravitation ball fall viscosity testing method for trace sample and unit, for measuring liquid viscosity with volume no greater than 3 ml. Said trace viscosity testing device includes one capillary, one gravitation ball fall, one detection unit and one signal processing unit, wherein the ratio of diameter of gravitation fall ball with said capillary calibre being between 1 :15 to 1:1.5. Comparing detection unit measured gravitation fall ball falling time with a group of corresponded reference data, to judge treated liquid viscosity. Said testing method and unit can measure numbers of group of chemicals viscosity under using minimum tested object condition in very short periods of time.
Description
Technical field
The invention relates to a kind of viscosity test method and device, particularly relevant for a kind of micro-sample gravity falling sphere viscosity measuring method and device.
Background technology
Viscosity (viscosity) is a very important physical property for general liquid chemicals or macromolecular compound, therefore many Fluid Computation method of viscosity that can be used for are proposed widely, and further commerce changes into the device that can measure viscosity, that is viscosity meter.Yet, traditional viscosity meter, measuring (volume) for the minimum of determinand has strict qualification, and in general the amount of determinand can not be lower than 10ml, otherwise just can't measure viscosity with general viscosity meter.Therefore, some comparatively valuable or synthetic difficult chemicals (for example solion) be often because of can't reaching the minimum measurement volumes of viscosity meter, and cause measuring its viscosity.
In view of this,, be necessary to develop a kind of viscosity test device that measures the microchemistry product in fact,, finish the measurement of chemicals viscosity in the hope of using under the minimum determinand condition for realizing the required viscosity analysis of chemicals exploitation.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method of testing of microviscosity, can be under the state of trace at determinand, finishes the measurement of testing liquid viscosity.
Another object of the present invention provides a kind of micro-sample gravity falling sphere viscosity proving installation, the volume of the determinand that it is required can be less than 3ml, and this microviscosity proving installation can be measured the viscosity of array determinand simultaneously fast, has the usefulness of rapid screening chemicals range of viscosities.
To achieve these goals, the invention provides a kind of micro-sample gravity falling sphere viscosity proving installation, be used for measuring the viscosity that a volume is not more than the liquid to be measured of 3ml, this device comprises: a kapillary, this kapillary have one first to be detectd territory, lateral areas and one second and detects the territory, lateral areas; One gravity falling sphere, this gravity falling sphere places in this kapillary, and the sphere diameter of this gravity falling sphere and this caliber capillaceous are than being between 1: 15 to 1: 1.5; One detecting unit; One signal processing unit, this liquid to be measured is filled in this kapillary, when this gravity falling sphere is passed through this capillaceous first when detecing the territory, lateral areas because of gravity, this detecting unit promptly transmits one first signal to this signal processing unit, pass through this capillaceous second when detecing the territory, lateral areas when this gravity falling sphere subsequently, and this detecting unit promptly transmits a secondary signal to this signal processing unit.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention also comprises: a platform, and this kapillary, this detecting unit configuration are thereon; One rotating shaft is disposed in this platform, and is fixed on the support, and this rotating shaft can make this platform overturn forward or backward.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention also comprises a temperature control system, and the liquid to be measured in this kapillary is maintained in the specific range of temperatures.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the sphere diameter of this gravity falling sphere are in the scope of 3m m to 100 μ m.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, this gravity falling sphere after shaping through a process of lapping.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the material of this gravity falling sphere be metal, alloy, metal oxide, metal carbide, contain oxygen silicide, nitrogenous silicide, macromolecular compound or the compound substance of above-mentioned material.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the material of this gravity falling sphere are gold, copper, silver, stainless steel, silicon nitride, monox, aluminium oxide, chromium oxide, zirconia, calcium oxide, tungsten carbide, polyamide, pi, polypropylene or teflon.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the viscosity of this determinand is not more than 1100Cp.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, this determinand are ionic liquid, printing ink, electrolytic solution or Polymer Solution.
In order to realize purpose of the present invention, the invention provides a kind of micro-sample gravity falling sphere viscosity proving installation, be used for measuring simultaneously the viscosity that the array volume all is not more than the liquid to be measured of 3ml, this device comprises: a platform, dispose a detecting unit on this platform; One rotating shaft is disposed in this platform, and is fixed on the support, and this rotating shaft can make this platform overturn forward or backward; Several kapillaries are parallel to each other and be disposed on the first surface of this platform, and each kapillary has one first to be detectd territory, lateral areas and one second and detect the territory, lateral areas; Several gravity falling spheres, each gravity falling sphere place in its corresponding kapillary, and the sphere diameter of this gravity falling sphere and this caliber capillaceous are than being between 1: 15 to 1: 1.5; One signal processing unit, this liquid to be measured is filled in this kapillary, when these several gravity falling spheres are passed through this capillaceous first when detecing the territory, lateral areas because of gravity, this detecting unit promptly transmits one first group of signal to this signal processing unit, pass through this capillaceous second when detecing the territory, lateral areas when this gravity falling sphere subsequently, and this detecting unit promptly transmits one second group of signal to this signal processing unit.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention also comprises a temperature control system, and the liquid to be measured in this kapillary is maintained in the specific range of temperatures.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the sphere diameter of this gravity falling sphere are in the scope of 3mm to 100 μ m.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, this gravity falling sphere after shaping through a process of lapping.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the material of this gravity falling sphere be metal, alloy, metal oxide, metal carbide, contain oxygen silicide, nitrogenous silicide, macromolecular compound or the compound substance of above-mentioned material.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the material of this gravity falling sphere are gold, copper, silver, stainless steel, silicon nitride, monox, aluminium oxide, chromium oxide, zirconia, calcium oxide, tungsten carbide, polyamide, pi, polypropylene or teflon.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, the viscosity of this determinand is not more than 1100Cp.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, this determinand are ionic liquid, printing ink, electrolytic solution or Polymer Solution.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention, this platform comprise that also a second surface is positioned at the opposition side of this first surface, also dispose several kapillaries on this second surface.
In order to realize purpose of the present invention, the invention provides a kind of method of testing of viscosity, be used for measuring the viscosity that a volume is not more than the liquid to be measured of 3ml, may further comprise the steps: a kapillary is provided, and this kapillary has one first to be detectd territory, lateral areas and one second and detects the territory, lateral areas; Fill up this kapillary with this liquid to be measured; Dispose a gravity falling sphere in this top capillaceous, it is freely fallen in kapillary because of gravity, the sphere diameter of this gravity falling sphere and this caliber capillaceous are than being between 1: 15 to 1: 1.5; Pass through this capillaceous first when detecing the territory, lateral areas when this gravity falling sphere because of gravity, transmit one first signal to a signal processing unit with a detecting unit; Pass through this capillaceous second when detecing the territory, lateral areas when this gravity falling sphere because of gravity, transmit a secondary signal to this signal processing unit with this detecting unit; This first signal and this secondary signal and one group of corresponding reference data are compared, to differentiate the viscosity of liquid to be measured.
Micro-sample gravity falling sphere viscosity proving installation provided by the invention and method, only need the sample of minimum volume, the very short time can be finished the measurement of array sample viscosity simultaneously, and can be by the sphere diameter of caliber capillaceous and gravity falling sphere and the change of proportion, measure the sample of very broad range of viscosities, therefore be fit to the fast big amount measurement of various microchemistry product viscosity.
Below by several embodiment and conjunction with figs., illustrating further method of the present invention, feature and advantage, but be not to be used for limiting the scope of the invention, scope of the present invention should be as the criterion with appended claim.
Description of drawings
Fig. 1 is the synoptic diagram of the described microviscosity proving installation of a preferred embodiment of the present invention.
Fig. 2 is the stereographic map of the described microviscosity proving installation of another preferred embodiment of the present invention.
Fig. 3 is the graph of a relation that its viscosity of the described standard viscosity liquid of table 2 and gravity ball fall required time.
Fig. 4 is the graph of a relation that its viscosity of the described standard viscosity liquid of table 3 and gravity ball fall required time.
Embodiment
Please refer to Fig. 1, Fig. 1 is the described microviscosity proving installation of a preferred embodiment of the present invention.This microviscosity proving installation 10 comprises a kapillary 12, and this kapillary has one first to be detectd territory, lateral areas 22 and one second and detect territory, lateral areas 24.Because this microviscosity proving installation mainly is to be used for the viscosity of chemicals of micrometer amount (volume is less than 3ml), so this caliber capillaceous generally is not more than 6mm, I to 200 μ m.Liquid 15 to be measured is filled in this kapillary, and has a gravity falling sphere 13 in this kapillary 12.The sphere diameter of this gravity falling sphere can be in the scope of 3mm to 100 μ m, its material can be metal, alloy, metal oxide, metal carbide, contains oxygen silicide, nitrogenous silicide, macromolecular compound, or the compound substance of above-mentioned material, for example: gold, copper, silver, stainless steel, cupronickel, silicon nitride, monox, aluminium oxide, chromium oxide, zirconia, calcium oxide, tungsten carbide/cobalt compound, polyamide/pi, polypropylene or teflon.Please refer to table 1, it enumerates the material and the sphere diameter thereof of employed gravity falling sphere 13 in some preferred embodiments of the present invention.
Table 1
| Material | Form (or chemical formula) | Sphere diameter (Φ: Xmm) | Proportion (g/cm 3) |
| Tungsten carbide/cobalt compound (Tungsten carbide/Cobalt) | WC∶Co＝94∶6 | 3.0，2.0，1.0 | 14.95 |
| Silicon nitride (Silicon nitride) | Si 3N 4 | 3.0，2.0 | 2.4 |
| Aluminium oxide (Aluminium oxide) | Al 2O 3 | 0.2，0.5，1.0，1.5 ，3.0 | 3.98 |
| Ruby (Ruby) | Al 2O 3/Cr 2O 3/Si 2O 3 | 0.1，0.15，0.5， 1.0，1.5，2.0，3.0 | 3.98 |
| Cupronickel (Copper/Nickel) | Cu∶Ni＝70∶30 | 2.0，3.0 | 8.55 |
| Silver (Silver) | Ag | 0.5 | 10.5 |
| Copper (Copper) | Cu | 1.0，3.0 | 8.96 |
| Polyamide/pi (Polyamide/imide) | -(NH) x-(N) y- | 3.18 | 1.42- 1.46 |
| Teflon (Polytetrafluoroeth ylene) | -(CF 2CF 2) x- | 1.59，3.18 | 2.2 |
| Polypropylene (Polypropylene) | -(CH 2CHCH 3) x- | 3.18 | 0.9 |
| Beaded glass (Glass beads) | SiO 2/Al 2O 3/CaO | 3.0 | 2.65 |
| Stainless steel (Stainless Steel) | Fe/Cr/Co/Mn | 2.0，3.0 | 7.96 |
This gravity falling sphere 13 is relatively good through a process of lapping before use, to form a perfect ball-type, and the sphere diameter of this gravity falling sphere and this caliber ratio capillaceous are between 1: 15 to 1: 1.5, and be preferable between 1: 12 to 1: 4, better between 1: 10 to 1: 5.
Still please refer to Fig. 1, this microviscosity proving installation 10 also comprises a detecting unit 30 and a signal processing unit 40.When measuring the viscosity of this liquid 15 to be measured, utilize gravity that this gravity falling sphere 13 is freely fallen in kapillary, in gravity falling sphere 13 is passed through this kapillary 12 first when detecing territory 22, lateral areas, this detecting unit 30 promptly transmits one first signal and reaches this signal processing unit 40 via data line 35.Then, when this gravity falling sphere 13 is passed through this capillaceous second when detecing territory 24, lateral areas, this detecting unit 30 promptly transmit a secondary signal via data line 35 to this signal processing unit 40.By this signal processing unit 40, the user can compare first signal and secondary signal (being generally the information of time) with one group of corresponding reference information, can differentiate the viscosity of liquid to be measured thus.
In addition, please refer to Fig. 2, Fig. 2 is the described microviscosity proving installation of another preferred embodiment of the present invention.This microviscosity proving installation 100 comprises a support 110, a platform 120 and a rotating shaft 130, and wherein this rotating shaft 130 is passed this platform 120 and is fixed on this support 110, and this platform 120 is overturn forward or backward.The first surface 121 of this platform 120 has several kapillaries 140, gravity falling sphere 145, detecting unit 150 and 151, and a signal processing unit 160.This microviscosity proving installation 100 can be by this rotating shaft 130 so that be positioned at the apical position that the gravity falling sphere 145 of this kapillary 140 is got back to this kapillary 140.In addition, this microviscosity proving installation 100 also can comprise a clamping device (not shown), so that this gravity falling sphere 145 maintains the apical position of this kapillary 140 before not carrying out viscosity measurement.For example if this gravity falling sphere 145 is that this clamping device can be an electro permanent magnetic clamping device when having the material of magnetic.When beginning to measure the viscosity of a liquid 170 to be measured, utilize gravity that this gravity falling sphere 145 is freely fallen in kapillary 140, in gravity falling sphere 145 is passed through this kapillary 140 first when detecing territory, lateral areas (detecting unit 150 positions), this detecting unit 150 promptly transmits one first signal and reaches this signal processing unit 160 via data line 155.Then, in this gravity falling sphere 145 is passed through this kapillary 140 second when detecing territory, lateral areas (detecting unit 151 positions), this detecting unit 151 promptly transmit a secondary signal via data line 155 to this signal processing unit 160.By this signal processing unit 160, the user can compare first signal and this secondary signal (being generally the information of time) REFERENCE INFORMATION corresponding with, can differentiate the viscosity of liquid to be measured thus.
In addition, it should be noted that, this microviscosity proving installation 100 can be a two-sided measuring equipment, promptly outside the second surface 122 of this platform 120 (opposing face of this first surface 121), also can have the viscosity test system identical simultaneously with first surface, thus, can make this microviscosity proving installation 100 have the function of a large amount of samples of screening.This microviscosity proving installation 100 can more comprise a temperature control system, and for example a deep fat temperature control system, a pneumatic control system or a constant-humidity constant-temperature system are so that the liquid to be measured in this kapillary maintains in the specific range of temperatures.
Microviscosity proving installation of the present invention is fit to measure the determinand that viscosity is not more than 1100Cp, especially is fit to be used for measuring the viscosity of ionic liquid, printing ink or electrolytic solution.
Please refer to table 2, table 2 is proofreaied and correct the result that employed standard viscosity liquid measures for utilizing a microviscosity proving installation according to the invention at general viscosity meter, and at this, the material of employed gravity falling sphere is a stainless shot, and its proportion is 7.96g/cm
3, sphere diameter is 1.5mm, caliber capillaceous is 3mm.Its viscosity and gravity ball fall required time relation figure and are shown among Fig. 3.
Please refer to table 3, table 3 is proofreaied and correct the result that employed standard viscosity liquid measures for utilizing a microviscosity proving installation according to the invention at general viscosity meter, and at this, the material of employed gravity falling sphere is a beaded glass, and its proportion is 2.65g/cm
3, sphere diameter is 1mm, caliber capillaceous is 3mm.Its viscosity and gravity ball fall required time relation figure and are shown among Fig. 4.
Table 2
| Sample | Viscosity | Test duration (sec) | Mean value | |||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
| S60 | 102 | 5.52 | 5.83 | 5.96 | 5.31 | 5.82 | 5.67 | 5.66 | 5.56 | 5.66 |
| N100 | 201 | 9.41 | 9.31 | 9.36 | 10.04 | 10.28 | 9.10 | 9.63 | 9.27 | 9.55 |
| N350 | 755 | 42.09 | 39.18 | 38.80 | 41.71 | 38.18 | 36.99 | 38.37 | 40.29 | 39.45 |
Table 3
| Sample | Viscosity | Test duration (see) | Mean value | |||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |||
| S60 | 102 | 20.17 | 19.24 | 18.49 | 18.45 | 19.47 | 19.35 | 18.77 | 19.45 | 19.17 |
| N100 | 201 | 41.16 | 39.19 | 36.20 | 39.59 | 67.07 | 38.70 | 39.76 | 38.01 | 38.71 |
| IL104P | 312 | 67.82 | 66.41 | 70.91 | 69.11 | 67.13 | 71.68 | 70.06 | 69.33 | 69.06 |
| N350 | 755 | 126.13 | 133.26 | 146.79 | 153.09 | 139.77 | 134.79 | 137.74 | 129.34 | 137.61 |
Please refer to table 4, the result of table 4 for utilizing a microviscosity proving installation according to the invention to measure respectively at standard viscosity liquid S20 and S60.At this, utilize 4 different kapillaries that S20 and S60 are measured.The material of employed gravity falling sphere is a stainless shot, and its proportion is 7.96g/cm
3, sphere diameter is 2mm, caliber capillaceous is 3mm.
Utilize a microviscosity proving installation according to the invention, earlier 4 kinds of standard viscosity liquids are measured its gravity falling sphere and fall (through first detecting unit, 200 to second detecting units 300) required time (result is as shown in table 5), data as a comparison.
Table 4
| Standard viscosity liquid S20 | Standard viscosity liquid S60 | |||||||
| Experiment numbers | The kapillary numbering | |||||||
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| Time (sec) | ||||||||
| 1 | 5.27 | 7.14 | 5.42 | 5.57 | 15.9 | 18.99 | 18.12 | 15.94 |
| 2 | 5.52 | 6.38 | 5.29 | 5.29 | 18.79 | 15.84 | 17.27 | 16.76 |
| 3 | 5.46 | 6.58 | 5.32 | 5.40 | 17.70 | 18.58 | 16.88 | 17.52 |
| 4 | 5.27 | 6.38 | 5.30 | 5.42 | 15.33 | 17.03 | 15.96 | 17.84 |
| 5 | 5.39 | 6.52 | 5.33 | 5.35 | 16.79 | 18.45 | 18.15 | 18.50 |
| 6 | 5.32 | 6.33 | 5.41 | 5.50 | 15.38 | 16.43 | 16.97 | |
| 7 | 5.26 | 6.41 | 5.13 | 5.51 | 18.18 | 17.81 | 14.82 | |
| 8 | 5.42 | 6.35 | 5.18 | 5.56 | 17.83 | 16.40 | 18.74 | |
| 9 | 5.47 | 6.40 | 5.36 | 5.49 | 17.29 | 16.47 | 18.13 | |
| 10 | 5.48 | 6.50 | 5.20 | 5.32 | 17.95 | 17.25 | 16.78 | |
| 11 | 5.20 | 6.44 | 5.24 | 5.38 | 17.25 | 18.64 | ||
| 12 | 5.60 | 6.83 | 5.32 | 5.45 | 18.47 | 17.84 | ||
| 13 | 5.45 | 6.40 | 5.00 | 5.35 | 17.00 | 18.51 | ||
| 14 | 5.24 | 6.36 | 5.31 | 5.49 | 16.14 | 17.86 | ||
| 15 | 5.26 | 6.61 | 5.23 | 5.54 | ||||
| 16 | 5.24 | 6.89 | 5.15 | 5.42 | ||||
| 17 | 5.38 | 6.56 | 5.48 | 5.34 | ||||
| 18 | 5.32 | 6.34 | 5.41 | 5.42 | ||||
| 19 | 5.51 | 6.42 | 5.12 | 5.40 | ||||
| Add total value | 102.06 | 123.84 | 100.20 | 103.20 | 84.51 | 175.52 | 239.6 | 244.85 |
| Mean value | 5.371 | 6.517 | 5.273 | 5.431 | 16.902 | 17.552 | 17.114 | 17.489 |
| Standard deviation | 0.117 | 0.217 | 0.122 | 0.083 | 1.386 | 1.180 | 0.794 | 1.129 |
Table 5
| Experiment numbers | The standard viscosity liquid numbering | |||
| st1 | st2 | st3 | st4 | |
| Time (S) | ||||
| 1 | 2.08 | 1.18 | 2.97 | 1.64 |
| 2 | 2.07 | 1.16 | 3.02 | 1.65 |
| 3 | 2.03 | 1.16 | 3.00 | 1.62 |
| 4 | 2.09 | 1.15 | 2.97 | 1.63 |
| 5 | 2.07 | 1.15 | 3.00 | 1.64 |
| 6 | 2.08 | 1.18 | 2.97 | 1.63 |
| 7 | 2.07 | 1.16 | 3.02 | 1.62 |
| 8 | 2.04 | 1.18 | 3.10 | 1.62 |
| 9 | 2.05 | 1.16 | 3.04 | 1.62 |
| Add total value | 18.58 | 10.48 | 27.09 | 14.67 |
| Mean value | 2.064 | 1.164 | 3.01 | 1.63 |
| Standard deviation | 0.020 | 0.012 | 0.042 | 0.011 |
| Cp | 37.56 | 24.72 | 58.30 | 30.69 |
Then, utilize identical kapillary and gravity falling sphere that the liquid to be measured of 8 groups of unknown viscosity is carried out the measurement of gravity falling sphere lowering time, last, with measurement and the comparison of this offset information, obtain the viscosity of this liquid to be measured, its result is as shown in table 6.
In sum, the present invention has following advantage:
Microviscosity proving installation provided by the invention and method, only the sample of the minimum volume of need (minimum needs 0.2ml) can be measured its viscosity, needs tens of milliliters measurement amount to compare easily with known technology, is fit to very much the viscosity measurement of microchemistry product.
In addition, required measurement time of microviscosity proving installation of the present invention and method very short (several seconds to one minute), and can finish the measurement of array (for example 24 groups) sample simultaneously, needing therefore be very suitable for the chemicals of detecting fast and a large amount of screenings to measure.
Moreover, this characteristics are under the prerequisite of spheroid as the gravity falling sphere with very small dimensions, utilize the special ratio of kapillary caliber and sphere diameter, reach the measurement of chemicals viscosity, therefore, can change by the sphere diameter and the proportion of caliber capillaceous and gravity falling sphere, do the measurement of viscosity, thus, the range of viscosities that can the survey unusual broadness (can survey and be not more than 1100 chemicals to Cp) that promptly becomes is fit to the viscosity measurement of various chemicals.
Table 6
| Liquid 1 to be measured | Liquid 2 to be measured | Liquid 3 to be measured | Liquid 4 to be measured | Liquid 5 to be measured | Liquid 6 to be measured | Liquid 7 to be measured | Liquid 8 to be measured | ||||
| Experiment numbers | Time (sec) | ||||||||||
| 1 | 1.33 | 2.03 | 1.17 | 1.53 | 1.1 | 3.38 | 1.17 | 1.18 | |||
| 2 | 1.33 | 2.05 | 1.17 | 1.54 | 1.11 | 3.34 | 1.17 | 1.17 | |||
| 3 | 1.33 | 2.06 | 1.17 | 1.52 | 1.1 | 3.49 | 1.17 | 1.16 | |||
| 4 | 1.32 | 2.02 | 1.16 | 1.52 | 1.11 | 3.41 | 1.17 | 1.16 | |||
| 5 | 1.32 | 2.06 | 1.16 | 1.52 | 1.11 | 3.41 | 1.19 | 1.18 | |||
| 6 | 1.33 | 2.04 | 1.16 | 1.51 | 1.11 | 3.38 | 1.17 | 1.18 | |||
| 7 | 1.32 | 2.02 | 1.16 | 1.51 | 1.09 | 3.57 | 1.18 | 1.17 | |||
| 8 | 1.33 | 2.01 | 1.16 | 1.5 | 1.11 | 3.33 | 1.17 | 1.16 | |||
| 9 | 1.32 | 2.02 | 1.18 | 1.53 | 1.11 | 3.34 | 1.19 | 1.16 | |||
| Add total value | 11.93 | 18.31 | 10.49 | 13.68 | 9.95 | 30.65 | 10.58 | 10.52 | |||
| Mean value | 1.325556 | 2.034444 | 1.165556 | 1.52 | 1.105556 | 3.405556 | 1.175556 | 1.168889 | |||
| Standard deviation | 0.00527 | 0.018782 | 0.007265 | 0.012247 | 0.007265 | 0.078916 | 0.008819 | 0.00928 | |||
| Calculate the Cp of gained | 26.64 | 37.04 | 24.73 | 29.16 | 24.05 | 70.07 | 24.85 | 24.77 | |||
Though the present invention by the preferred embodiment explanation as above, this preferred embodiment is not in order to limit the present invention.Those skilled in the art without departing from the spirit and scope of the present invention, should have the ability this preferred embodiment is made various changes and replenished, so protection scope of the present invention is as the criterion with the scope of claims.
Being simply described as follows of symbol in the accompanying drawing:
10: microviscosity testing arrangement 121: first surface
12: capillary 122: second surface
13: gravity falling sphere 130: rotating shaft
15: liquid 140 to be measured: capillary
Detect territory, lateral areas 145 at 22: the first: the gravity falling sphere
Detect territory, lateral areas 150,151 at 24: the second: detecting unit
30: detecting unit 155: data line
35: data line 160: signal processing unit
40: signal processing unit 170: liquid to be measured
100: 200: the first detecting units of microviscosity proving installation
110: 300: the second detecting units of support
120: platform
Claims (19)
1, a kind of micro-sample gravity falling sphere viscosity proving installation is used for measuring the viscosity that a volume is not more than the liquid to be measured of 3ml, it is characterized in that this device comprises:
One kapillary, this kapillary have one first to be detectd territory, lateral areas and one second and detects the territory, lateral areas;
One gravity falling sphere, this gravity falling sphere places in this kapillary, and the sphere diameter of this gravity falling sphere and this caliber capillaceous are than being between 1: 15 to 1: 1.5;
One detecting unit;
One signal processing unit,
Wherein, this liquid to be measured is filled in this kapillary, when this gravity falling sphere is passed through this capillaceous first when detecing the territory, lateral areas because of gravity, this detecting unit promptly transmits one first signal to this signal processing unit, pass through this capillaceous second when detecing the territory, lateral areas when this gravity falling sphere subsequently, and this detecting unit promptly transmits a secondary signal to this signal processing unit.
2, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that also comprising:
One platform, this kapillary, this detecting unit configuration are thereon;
One rotating shaft is disposed in this platform, and is fixed on the support, and this rotating shaft can make this platform overturn forward or backward.
3, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that: also comprise a temperature control system, the liquid to be measured in this kapillary is maintained in the specific range of temperatures.
4, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that: the sphere diameter of this gravity falling sphere is in the scope of 3mm to 100 μ m.
5, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that: this gravity falling sphere after shaping through a process of lapping.
6, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that: the material of this gravity falling sphere is metal, alloy, metal oxide, metal carbide, contain oxygen silicide, nitrogenous silicide, macromolecular compound or the compound substance of above-mentioned material.
7, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that: the material of this gravity falling sphere is gold, copper, silver, stainless steel, silicon nitride, monox, aluminium oxide, chromium oxide, zirconia, calcium oxide, tungsten carbide, polyamide, pi, polypropylene or teflon.
8, micro-sample gravity falling sphere viscosity proving installation according to claim 1, it is characterized in that: the viscosity of this determinand is not more than 1100Cp.
9, micro-sample gravity falling sphere viscosity proving installation according to claim 1 is characterized in that: this determinand is ionic liquid, printing ink, electrolytic solution or Polymer Solution.
10, a kind of micro-sample gravity falling sphere viscosity proving installation is used for measuring the viscosity that the array volume all is not more than the liquid to be measured of 3ml simultaneously, it is characterized in that this device comprises:
One platform disposes a detecting unit on this platform;
One rotating shaft is disposed in this platform, and is fixed on the support, and this rotating shaft can make this platform overturn forward or backward;
Several kapillaries are parallel to each other and be disposed on the first surface of this platform, and these kapillaries have one first to be detectd territory, lateral areas and one second and detect the territory, lateral areas;
Several gravity falling spheres, each gravity falling sphere place in its corresponding kapillary, and the sphere diameter of this gravity falling sphere and this caliber capillaceous are than being between 1: 15 to 1: 1.5;
One signal processing unit,
Wherein, this liquid to be measured is filled in this kapillary, when these several gravity falling spheres are passed through this capillaceous first when detecing the territory, lateral areas because of gravity, this detecting unit promptly transmits one first group of signal to this signal processing unit, pass through this capillaceous second when detecing the territory, lateral areas when this gravity falling sphere subsequently, and this detecting unit promptly transmits one second group of signal to this signal processing unit.
11, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: also comprise a temperature control system, the liquid to be measured in this kapillary is maintained in the specific range of temperatures.
12, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: the sphere diameter of this gravity falling sphere is in the scope of 3mm to 100 μ m.
13, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: this gravity falling sphere after shaping through a process of lapping.
14, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: the material of this gravity falling sphere is metal, alloy, metal oxide, metal carbide, contain oxygen silicide, nitrogenous silicide, macromolecular compound or the compound substance of above-mentioned material.
15, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: the material of this gravity falling sphere is gold, copper, silver, stainless steel, silicon nitride, monox, aluminium oxide, chromium oxide, zirconia, calcium oxide, tungsten carbide, polyamide, pi, polypropylene or teflon.
16, micro-sample gravity falling sphere viscosity proving installation according to claim 10, it is characterized in that: the viscosity of this determinand is not more than 1100Cp.
17, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: this determinand is ionic liquid, printing ink, electrolytic solution or Polymer Solution.
18, micro-sample gravity falling sphere viscosity proving installation according to claim 10 is characterized in that: this platform comprises that also a second surface is positioned at the opposition side of this first surface, and also disposes several kapillaries on this second surface.
19, a kind of method of testing of viscosity is used for measuring the viscosity that a volume is not more than the liquid to be measured of 3ml, it is characterized in that may further comprise the steps:
One kapillary is provided, and this kapillary has one first to be detectd territory, lateral areas and one second and detects the territory, lateral areas;
Fill up this kapillary with this liquid to be measured;
Dispose a gravity falling sphere in this top capillaceous, it is freely fallen in kapillary because of gravity, the sphere diameter of this gravity falling sphere and this caliber capillaceous are than being between 1: 15 to 1: 1.5;
Pass through this capillaceous first when detecing the territory, lateral areas when this gravity falling sphere because of gravity, transmit one first signal to a signal processing unit with a detecting unit;
Pass through this capillaceous second when detecing the territory, lateral areas when this gravity falling sphere because of gravity, transmit a secondary signal to this signal processing unit with this detecting unit;
This first signal and this secondary signal and one group of corresponding reference data are compared, to differentiate the viscosity of liquid to be measured.
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| CNB2005100052825A CN100529724C (en) | 2005-02-04 | 2005-02-04 | Micro-sample gravity falling sphere viscosity measuring method and apparatus |
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| CNB2005100052825A CN100529724C (en) | 2005-02-04 | 2005-02-04 | Micro-sample gravity falling sphere viscosity measuring method and apparatus |
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| CN100529724C CN100529724C (en) | 2009-08-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160223448A1 (en) * | 2015-02-03 | 2016-08-04 | Electronics And Telecommunications Research Institute | Portable viscometer and method of manufacturing capillary tube for measuring viscosity |
| CN107884313A (en) * | 2017-12-16 | 2018-04-06 | 钦州矿务局中学 | A kind of viscosity detecting device for being used to detect building coating viscosity |
| CN113959906A (en) * | 2021-11-23 | 2022-01-21 | 北方化学工业股份有限公司 | Viscosity testing method for nitrocotton for coating |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3898871A (en) * | 1974-06-10 | 1975-08-12 | Gerin Corp | Viscosity comparator |
| DE3219706A1 (en) * | 1982-05-26 | 1983-12-01 | Jürgen Prof. 7302 Ostfildern Mauch | Device for the comparative observation of the viscosities of different liquids |
| CN1070479A (en) * | 1992-09-04 | 1993-03-31 | 中国矿业大学 | Oil viscosity measuring method and device |
| CN2207577Y (en) * | 1992-09-08 | 1995-09-13 | 梁国光 | Constant pressure, speed variable, trace and photoelectric capillary viscometer |
| CN2185435Y (en) * | 1994-01-14 | 1994-12-14 | 四川大学 | Photoelectric falling sphere viscometer |
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2005
- 2005-02-04 CN CNB2005100052825A patent/CN100529724C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160223448A1 (en) * | 2015-02-03 | 2016-08-04 | Electronics And Telecommunications Research Institute | Portable viscometer and method of manufacturing capillary tube for measuring viscosity |
| KR20160095679A (en) * | 2015-02-03 | 2016-08-12 | 한국전자통신연구원 | Potable viscometer and manufacturing method for viscosity measuring capillary tube |
| US10168266B2 (en) * | 2015-02-03 | 2019-01-01 | Electronics And Telecommunications Research Institute | Portable viscometer and method of manufacturing capillary tube for measuring viscosity |
| KR102251084B1 (en) * | 2015-02-03 | 2021-05-14 | 한국전자통신연구원 | Potable viscometer and manufacturing method for viscosity measuring capillary tube |
| CN107884313A (en) * | 2017-12-16 | 2018-04-06 | 钦州矿务局中学 | A kind of viscosity detecting device for being used to detect building coating viscosity |
| CN113959906A (en) * | 2021-11-23 | 2022-01-21 | 北方化学工业股份有限公司 | Viscosity testing method for nitrocotton for coating |
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| CN100529724C (en) | 2009-08-19 |
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