CN1070479A - Oil viscosity measuring method and device - Google Patents
Oil viscosity measuring method and device Download PDFInfo
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- CN1070479A CN1070479A CN 92110159 CN92110159A CN1070479A CN 1070479 A CN1070479 A CN 1070479A CN 92110159 CN92110159 CN 92110159 CN 92110159 A CN92110159 A CN 92110159A CN 1070479 A CN1070479 A CN 1070479A
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- spheroid
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- 238000000034 method Methods 0.000 title claims abstract description 31
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Abstract
The invention discloses a kind of by measure the method and apparatus of the velocity survey fluid kinematic viscosity that bead falls in fluid, when the upper and lower sensing point of spheroid process, sensor sends detectable signal respectively, and triggering automatic counting circuit, make it begin to count or stop counting, count value between two pulses of being carried by the automatic counting circuit meter converts the kinematic viscosity of fluid to through speed/viscosity change-over circuit and display circuit, and measured viscosity number is directly shown.Method of the present invention can directly show viscosity number, thereby can continuous coverage oil sample viscosity in enormous quantities, is convenient to the equipment operation operating mode is monitored automatically, has improved the degree of accuracy of measuring.
Description
The present invention relates to a kind of method of liquid viscosity and device of measuring with this method measured, relate in particular to a kind of by measuring the method and the device of the speed of fall measurement fluid kinematic viscosity of bead in fluid.
The method that is used to measure liquid viscosity up to now has a variety of, for example: 1) utilize fluid to flow in kapillary pipe and hole and try to achieve fluid viscosity, the viscosity juice made from this principle has: Oswald that moral (Ostwald) viscosity meter, Wu Bieluote (Ubbelohde) viscosity meter, Saybolt (Saybolt) viscosity meter, Redwood (Redwood) viscosity meter, Engler (Engler) viscosity meter, Ford cup (Ford Cup) viscosity meter, Zan En (Zahn) viscosity meter etc.; 2) utilize object in fluid, to rotate and measure fluid viscosity, as: Stormer (Stormer) viscosity meter Brookfield (Broodfield) viscosity meter; Be subjected to the viscous resistance effect when 3) object lands in fluid, measure the viscosity that spheroid whereabouts certain distance required time can be tried to achieve liquid, as falling-sphere viscometer; The vibration viscometer that utilizes object vibration survey viscosity in fluid, ultrasonic viscometer or the like are arranged in addition.
And be used to measure the most frequently used method of fluid kinematic viscosity is to measure with kapillary, adopts this method owing to be subjected to artificial factor, causes measuring error big, and measuring accuracy is not high, especially more restricted when measuring the contaminated fluid of dark fluid formula.In addition, the kapillary made from glass is " ∪ " shape, fracture easily, and be not easy to clean.When measuring the fluid of the unknown trade mark, often need test of many times to select suitable kapillary and just can measure qualified viscosity data, thereby increased the workload of measuring greatly, cause the very big waste of human and material resources.And the instrument volume is big, and specialized laboratories must be arranged, and can not directly measure at the scene.
British patent document GB1491865 discloses a kind of the utilization and has measured the falling ball viscometer that the speed of fall of bead in fluid measured fluid viscosity, it is made up of viscometer tube, the stainless steel ball that is loaded in the pipe, and the top and the bottom that center on the viscometer tube outer wall are equipped with inductive coil respectively.During measurement, charge into testing liquid in the viscometer tube and induce first detectable signal during by the upper induction coil position when stainless steel ball, first display device demonstrates this signal, time set picks up counting simultaneously, when stainless steel ball induces second detectable signal during by following inductive coil position, second display device demonstrates this signal, and timing simultaneously stops, thereby can obtain the viscosity of fluid to be measured.But this device directly disclosing solution is surveyed the viscosity number of liquid, so is not easy to continuous coverage oil sample viscosity in enormous quantities, also is not easy to equipment working condition is monitored automatically.
In view of the above, the present invention is intended to propose a kind of automatic measurement method of viscosity, and this method is rolled in tested fluid by spheroid and fallen, and measures the movement velocity of spheroid in fluid automatically, then this rate conversion is become corresponding viscosity, and measured viscosity number is directly shown.
Another task of the present invention is that a kind of device of realizing said method will be provided, this device can with the movement velocity of measured spheroid in tested fluid as calculated conversion equipment be directly changed into viscosity and show.
The step that realizes the above-mentioned measuring method of the present invention is:
1, fluid to be measured is packed into one inclines in material (or the vertical) container, be provided with two sensing points up and down in the outside of this container, proportion is put into container greater than the spheroid of fluid proportion to be measured, under the acting in conjunction of the viscous resistance of the gravity of spheroid and fluid, spheroid tumbles or free-falling to the bottom from the top nature along (or vertical) container that tilts;
2, when the last sensing point of spheroid process, send first detectable signal by sensor (4), will produce the first full sized pules signal in this signal input pulse signaling conversion circuit, and trigger automatic counting circuit, automatic counting circuit begins counting;
3, when spheroid during through the below sensing point, second sensor (B) sends second detectable signal, will form the second full sized pules signal in this signal input pulse signaling conversion circuit, and triggers automatic counting circuit and make automatic counting circuit stop counting;
4, footpath speed/viscosity change-over circuit of the count value between two pulses that the automatic counting circuit road is put down in writing and display circuit convert the kinematic viscosity of fluid to, and measured viscosity number is directly shown.
The device of implementing the method for the invention comprises: an inclination (or vertical) is provided with and is filled with the container of fluid to be measured, be loaded on the proportion of the proportion of spheroid in the container, spheroid, measure spheroid for two and tumble sensor, receive the automatic counting circuit and speed/viscosity conversion and the display circuit that trigger by the pulse signal change-over circuit of the detectable signal of sensor output, by the full sized pules of pulse signal change-over circuit output to the fixed position greater than fluid to be measured.
Method of the present invention, when the container of above-mentioned splendid attire fluid to be measured vertically was provided with, described spheroid form also can be non-spheroid.
Method of the present invention can directly show viscosity number, thereby can continuous coverage oil sample viscosity in enormous quantities, is convenient to the operating condition of equipment is monitored automatically, and has avoided the influence of human factor to measured value, has improved measuring accuracy.
Describe the present invention below in conjunction with accompanying drawing, wherein:
Fig. 1 is oil viscosity measuring principle figure of the present invention;
Fig. 2 is an oil viscosity measurement mechanism block diagram of the present invention;
Fig. 3 carries out the device circuit figure of viscosity measurement for power demand sensor;
Fig. 4 is Magnetic Sensor A
2Circuit theory diagrams, sensor B
2Circuit part and sensors A
2Identical;
Fig. 5 is the circuit theory diagrams of optical sensor;
Fig. 6 is speed/viscosity converter circuit figure.
Referring to Fig. 1 and Fig. 2, at material such as glass by the oil resistant erosion, the oil sample 2 to be measured of packing in the container 1 that plastics etc. are made, the shape of said vesse can be right cylinder, rectangular parallelepiped or multiple edge body, put into spheroid 3 in the container 1, this spheroid is by the material such as the glass of oil resistant erosion, steel or other metal are made, the proportion of spheroid is greater than the proportion of fluid to be measured, container lean is provided with, the big I of its longitudinal axis and horizontal angle α changes in 1 ° of-90 ° of scope, container upper end is covered by end cap 4, in a certain position (sensing point) of inclination or vertical container top and the bottom sensors A is housed respectively, B.When the last sensing point of spheroid 3 processes, export first detectable signal by first sensor A, this signal is sent in the pulse signal change-over circuit 5, produces the first full sized pules signal and triggers counting automatically.When spheroid 3 passed through sensing point, the second sensor B sent second detectable signal, and this signal is input in the pulse signal change-over circuit 5, produces the second full sized pules signal, and triggered automatic counting circuit 6, and counting stops.Automatically convert the kinematic viscosity value of tested fluid by the count value between first, second full sized pules of automatic counting circuit 6 records to through speed/viscosity conversion and display circuit 7, and show.
The movement velocity of spheroid 3 in the container 1 that is filled with tested fluid 2 can be measured with electrometric method, magnetic measurement method or photo measure method.
Fig. 3 shows with electrometric method and carries out the circuit diagram that oil viscosity is measured.31 is the circuit part of sensor among the figure, and 32 is the clear circuit part, and 33 for the pulse generation part, and 34 are the pulse transmission control section, 35 for count, latch, driving, display part.When spheroid 3 began to tumble, counter was initial zero condition.As spheroid 3 process first sensor A
1(coil) L
1) time, oscillatory circuit failure of oscillation, T
2End V
0Be noble potential, the electronic switch conducting, timer picks up counting, when spheroid through the second sensor B
1(coil L
2) time, (CD4013) makes timer stop timing by double D trigger, and shows the time between two subpulses, and this time is directly proportional to the resistance that spheroid tumbles with fluid, can obtain the viscosity number of tested fluid through converting.
Fig. 4 used Magnetic Sensor A when measuring the movement velocity of spheroid 3 with the magnetic measurement method
2Circuit theory diagrams.Permanent magnet 41 is cemented in the back side of Hall element 42 as magnetic bias with epoxy resin, and the N utmost point of magnet 41 is facing to element 42.Select steel ball to be placed in the container 1, when steel ball rolls across sensors A as spheroid 3
2The top time, the magnetic flux density of Hall element 42 increases, the negative-going pulse output voltage that therefore to induce a peak value be 20mv, this negative pulse is carried out voltage amplification through arithmetical unit, promotes transistor and promptly obtains detection signal through shaping again.With two identical Magnetic Sensor (A
2, B
2) replacing the electrometric sensor circuit pack 31 among Fig. 3, then can realize measuring oil viscosity with the magnetic measurement method.
In the circuit diagram of solar sensor shown in Figure 5, measure spheroid and tumble the time with infrared photoelectric sensor, select pulsed driven for use in order to improve light emitting diode, constitute modulation pulse generator with NE556, half connects into free-running multivibrator, second half connects into monostalbe trigger, with the output of multivibrator as trigger pulse, therefore monostalbe trigger is periodically exported positive pulse, produce frequency and the adjustable modulation signal of pulse width, through the triode power amplification, the driven for emitting lights diode sends pulsed light wave, and the input phototriode is after amplify, shaping and obtain output waveform.By double D trigger filtering, output switching signal after the demodulation is realized the anti-interference filtration processing simultaneously.When light was not covered, each pulsed light wave was transported to phototriode, and received signal just changes once, each synchronizing signal (CP
1) in the rising edge, D
1End signal is always kept low level, in case phototriode is not received the pulsed light wave (light is covered) that diode sends, received signal then keeps then being high level, thereby is being right after CP
1Rising edge of a pulse Q
1End output high level leaves first CP of back up to spheroid
1Rising edge of a pulse just becomes low level again, d type flip flop demodulation principle that Here it is.Owing to utilize synchronizing signal as CP
1Pulse, so only when lumination of light emitting diode, the output of infrared photoelectric sensor just might change, thereby filtering do not launch the interference light wave that the light time receives, realize Filtering Processing.
Fig. 6 shows the circuit diagram of the used speed of the present invention/viscosity converter.Measure the movement velocity of spheroid earlier with the known reference fluid of viscosity number, with the ascending corresponding relation that marks it and viscosity in order of measured velocity amplitude, this corresponding relation is divided into some points (point is many more, precision is high more), weave into a form then, deposit electricity in and can compile read-only memory (EPROM, E
2PROM etc.), whenever measure a value, the viscosity number that just can take out a correspondence from memory shows.
Claims (19)
1, a kind of by measuring the method for the speed of fall measurement fluid kinematic viscosity of bead in fluid, the steps include:
1) fluid to be measured is packed into one to tilt or vertical container, be provided with two sensing points up and down in the outside of this container, proportion is put into container greater than the spheroid of fluid proportion to be measured, under the acting in conjunction of the viscous resistance of the gravity of spheroid and fluid, spheroid is along tilting or vertical container tumbles or free-falling to the bottom from the top nature;
2) when the last sensing point of spheroid process, (A) sends first detectable signal by sensor, will produce the first full sized pules signal in this signal input pulse signaling conversion circuit, and trigger automatic counting circuit, makes it begin counting;
3) when spheroid during through the below sensing point, (B) sends second detectable signal by sensor, will produce the second full sized pules signal in this signaling conversion circuit, and trigger automatic counting circuit, makes it stop counting;
4) count value between two pulses that automatic counting circuit is put down in writing converts the kinematic viscosity of fluid to through speed/viscosity change-over circuit and display circuit, and measured viscosity number is shown.
2, the method for claim 1, the container material that it is characterized in that above-mentioned splendid attire fluid to be measured are the material of oil resistant erosion, as glass or plastics.
3, method as claimed in claim 1 or 2 is characterized in that the longitudinal axis of container of the above-mentioned vertical or splendid attire fluid to be measured that is obliquely installed and the scope of horizontal angle α are 1 °-90 °.
4, the method described in claim 1 or 2 is characterized in that above-mentioned ball material is the material of oil resistant erosion, as steel or glass or other metal.
5, method as claimed in claim 3 is characterized in that above-mentioned ball material is noncorrosive materials such as steel or glass or other metal.
6, the method for claim 1 is characterized in that when the container of above-mentioned splendid attire fluid to be measured vertically is provided with, and described spherical form also can be non-spheroid.
7, a kind of device for measuring viscosity of method according to claim 1 of realizing, it comprises a container (1) that is obliquely installed and is filled with fluid to be measured (2), be loaded on the spheroid (3) in the container (1), the proportion of spheroid (3) is greater than the proportion of fluid to be measured, two measurement spheroids (3) tumble the sensor (A to certain fixed position, B), it is characterized in that this device also comprises the pulse signal change-over circuit (5) of reception by the detectable signal of sensor output, is changed and display circuit (7) by automatic counting circuit (6) and speed/viscosity that the standard arteries and veins of pulse signal change-over circuit (5) output triggers.
8, device for measuring viscosity as claimed in claim 6, it is characterized in that above-mentioned splendid attire fluid to be measured (2) container (1) be shaped as right cylinder or rectangular parallelepiped or multiple edge body.
9,, it is characterized in that said vesse (1) made by oil resistant corrosion material such as glass or plastics as claim 6 or 7 described device for measuring viscosity.
10,, it is characterized in that the longitudinal axis of said vesse (1) and the scope of horizontal angle α are 1 °-90 ° as claim 6 or 7 described device for measuring viscosity.
11, device for measuring viscosity as claimed in claim 8 is characterized in that the longitudinal axis of container (1) and the scope of horizontal angle are 1 °-90 °.
12,, it is characterized in that spheroid (3) made by the material of oil resistant erosion such as steel or glass or other metal as claim 6 or 7 described device for measuring viscosity.
13, device for measuring viscosity as claimed in claim 8 is characterized in that spheroid (3) made by the material of oil resistant erosion such as steel or glass or other metal.
14, device for measuring viscosity as claimed in claim 9 is characterized in that spheroid (3) made by the material of oil resistant erosion such as steel or glass or other metal.
15, device for measuring viscosity as claimed in claim 10 is characterized in that spheroid (3) made by the material of oil resistant erosion such as steel or glass or other metal.
16,, it is characterized in that (A B) is fax sense or Magnetic Sensor or optical sensor or sonac to the sensor, and (A, when B) being Magnetic Sensor, spheroid (3) is a steel ball when sensor as claim 6 or 7 described device for measuring viscosity.
17, device for measuring viscosity as claimed in claim 8 is characterized in that (A B) is electric transducer or Magnetic Sensor or optical sensor or sonac to the sensor, and (A, when B) being Magnetic Sensor, spheroid (3) is a steel ball when sensor.
18, device for measuring viscosity as claimed in claim 9 is characterized in that (A B) is electric transducer or Magnetic Sensor or optical sensor or sonac to the sensor, and (A, spheroid when B) being Magnetic Sensor (3) is a steel ball when sensor.
19, device for measuring viscosity as claimed in claim 10 is characterized in that (A B) is electric transducer or Magnetic Sensor or optical sensor or sonac to the sensor, and (A, when B) being Magnetic Sensor, spheroid (3) is a steel ball when sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110159 CN1070479A (en) | 1992-09-04 | 1992-09-04 | Oil viscosity measuring method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92110159 CN1070479A (en) | 1992-09-04 | 1992-09-04 | Oil viscosity measuring method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1070479A true CN1070479A (en) | 1993-03-31 |
Family
ID=4944645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92110159 Pending CN1070479A (en) | 1992-09-04 | 1992-09-04 | Oil viscosity measuring method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1070479A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529724C (en) * | 2005-02-04 | 2009-08-19 | 财团法人工业技术研究院 | Micro-sample gravity falling sphere viscosity measuring method and apparatus |
| CN101339184B (en) * | 2008-08-20 | 2012-02-08 | 燕山大学 | Self-compacting mortar working performance tester and test method |
| CN102854090A (en) * | 2012-07-18 | 2013-01-02 | 北京工业大学 | Detection device and method of liquid viscosity coefficient based on ultrasonic guided wave |
| CN104359796A (en) * | 2014-11-21 | 2015-02-18 | 无锡悟莘科技有限公司 | System for measuring liquid viscosity |
| CN106596339A (en) * | 2016-12-21 | 2017-04-26 | 清华大学 | Highly precise V-shaped funnel measurement apparatus of cement paste |
| CN106769680A (en) * | 2016-11-24 | 2017-05-31 | 吕忠华 | A kind of oil viscosity measurement apparatus |
| CN106990021A (en) * | 2017-05-27 | 2017-07-28 | 苏州工业职业技术学院 | A kind of roll-down type viscosity self-operated measuring unit and method |
| 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 |
-
1992
- 1992-09-04 CN CN 92110159 patent/CN1070479A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100529724C (en) * | 2005-02-04 | 2009-08-19 | 财团法人工业技术研究院 | Micro-sample gravity falling sphere viscosity measuring method and apparatus |
| CN101339184B (en) * | 2008-08-20 | 2012-02-08 | 燕山大学 | Self-compacting mortar working performance tester and test method |
| CN102854090A (en) * | 2012-07-18 | 2013-01-02 | 北京工业大学 | Detection device and method of liquid viscosity coefficient based on ultrasonic guided wave |
| CN102854090B (en) * | 2012-07-18 | 2015-03-04 | 北京工业大学 | Detection device and method of liquid viscosity coefficient based on ultrasonic guided wave |
| CN104359796A (en) * | 2014-11-21 | 2015-02-18 | 无锡悟莘科技有限公司 | System for measuring liquid viscosity |
| CN106769680A (en) * | 2016-11-24 | 2017-05-31 | 吕忠华 | A kind of oil viscosity measurement apparatus |
| CN106769680B (en) * | 2016-11-24 | 2019-06-14 | 烟台坤正密封制品有限公司 | A kind of oil viscosity measuring device |
| CN106596339A (en) * | 2016-12-21 | 2017-04-26 | 清华大学 | Highly precise V-shaped funnel measurement apparatus of cement paste |
| CN106990021A (en) * | 2017-05-27 | 2017-07-28 | 苏州工业职业技术学院 | A kind of roll-down type viscosity self-operated measuring unit and method |
| CN106990021B (en) * | 2017-05-27 | 2024-03-12 | 苏州工业职业技术学院 | Roll-off type viscosity automatic measurement device and method |
| 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 |
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