CN1036613C - Rotary viscosity meter - Google Patents
Rotary viscosity meter Download PDFInfo
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- CN1036613C CN1036613C CN94110559A CN94110559A CN1036613C CN 1036613 C CN1036613 C CN 1036613C CN 94110559 A CN94110559 A CN 94110559A CN 94110559 A CN94110559 A CN 94110559A CN 1036613 C CN1036613 C CN 1036613C
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Abstract
The present invention relates to a rotation viscometer which is composed of a sensor, an electric furnace, a control system and a microcomputer processing system. The present invention is characterized in that the sensor is a torque sensor, and is used for measuring liquid viscosity, converting torsional non-electrical quantity signals into electric signals and outputting the electric signals; the electric furnace is a MoSi2 electric furnace, and heats measured liquid; the control system is used for monitoring the communication of all power supplies and the temperature of the liquid and amplifying viscosity signals and temperature signals transmitted by thermoelectric couples; the microcomputer processing system is used for processing the viscosity signals and the temperature signals and finally outputting viscosity curves and temperature curves. The instrument has the advantages of high measurement speed, good repeatability and high precision. The present invention is an ideal instrument for measuring liquid viscosity.
Description
The present invention relates to a kind of instrument of measuring liquid viscosity according to the rotation principle.
In commercial production such as glass, metallurgy, controlling liquid viscosity is extremely important to improving the quality of products automatically.At present, it is existing multiple that the instrument of viscosity is measured by China, and with regard to itself structure, what have can not the fast measuring liquid viscosity; The MICROCOMPUTER PROCESSING of utilizing that has realizes the viscosity fast measuring, but can not accurately measure the viscosity under certain temperature at random, as Chinese patent communique disclosed utility model patent on October 18th, 1989: the infant industry rotational viscosimeter, applicant: Chengdu Instruement Factory, the applying date: on March 5th, 88, application number: 88203782, form by rotor, measuring spring, last optical disc, following optical disc, photovalve and microprocessor, finding speed is fast, has realized the automatic control of liquid viscosity.But the main problem of this rotational viscosimeter is: go up optical disc and only depend on a finer wire to be connected with following optical disc, and poor stability, it is not accurate enough to measure little viscosity;
In the world, as United States Patent (USP): utilize the mediation of rotation to cut program and the instrument that tool is measured the semisolid rheological property, the patent No.: 4535621, utilize the electronic circuit pulse producer by certain certain gating pulse frequency of instruction output, the control step motor rotatablely moves, and then drive first round disc spins, first wheel disc links to each other by filament with second wheel disc, and be fixed with angular transducer on second wheel disc, so just drive angular transducer and produce sinusoidal motion, and then drive torque sensor and gauge head is done sinusoidal to-and-fro movement.When in gauge head inserts the liquid of semisolid (big viscosity), making sinusoidal to-and-fro movement and liquid and producing a kind of friction viscous force, torque sensor generation torsional deformation, receive the torque signal of torque sensor and the corner of the angular transducer of correspondence by signal processing apparatus, convert digital signal to and be transported to microcomputer and handle, be presented at the viscosity number of semisolid (big viscosity) liquid that records under certain certain angle.Defective is a complex structure, and the torque sensor structures shape that adopts the resolution of this instrument lower, can only measure big viscosity, the little viscosity of energy measurement not, can not measure the viscosity under a certain high temperature, and in commercial production such as glass, metallurgy, at high temperature in time measure control temperature and viscosity parameter, extremely important to improving the quality of products.
Purpose of the present invention just is to overcome the problem that prior art exists, and provides that a kind of finding speed is fast, good reproducibility, liquid viscosity determining instrument that precision is high.
In order to achieve the above object, the present invention includes:
A kind of rotational viscosimeter is made up of synchronous motor, rotating shaft, torque sensor, electric-heating container, control system, microprocessor system, wherein:
Torque sensor comprises torquemeter, transducer, measuring staff and gauge head, torquemeter comprises torquemeter shell, spring leaf, pendulum ring, goes up thimble, following thimble and locating piece, the spring leaf upper end is fixedly connected through torquemeter shell and rotating shaft, spring leaf lower end and last thimble are fixedly connected, the pendulum ring set is contained in the locating piece outside, upper and lower thimble is fixed in the pendulum ring and withstands on respectively in the hole up and down of locating piece, following thimble and measuring staff are fixedly connected, the measuring staff bottom is fixed with gauge head, transducer is fixed in the rotating shaft, receives the torque signal of spring leaf output;
The motor shaft of synchronous motor is fixedly connected through shaft joint and rotating shaft;
Electric-heating container is used to heat fluid to be measured, and its electric heating body adopts molybdenum disilicide material, temperature height, quick heating;
Control system is used to control each power supply UNICOM and fluid temperature, and viscosity signal and temperature signal are amplified, and is transported to microprocessor system;
Microprocessor system, the viscosity, the temperature signal that are used for receiving convert digital signal to and are handled, and export viscograph and temperature curve at last.
Described rotational viscosimeter, transducer is by transformer B
1, current rectifying and wave filtering circuit, mu balanced circuit, pressure regulation filtering circuit and electric bridge form, wherein current rectifying and wave filtering circuit is by commutation diode D
1, D
2With electrochemical capacitor C
1Form transformer B
1Output signal supply with mu balanced circuit through current rectifying and wave filtering circuit, mu balanced circuit is by metalfilmresistor R
1-3With voltage stabilizing diode D
3-5Form resistance R
1One termination commutation diode D
1～2Output terminal, its other end is successively through resistance R
2, R
3Connect the pressure regulation filtering circuit, in resistance R
1With resistance R
2The connection place is connected to voltage stabilizing diode D successively
3-4, in resistance R
2With resistance R
3The connection place be connected to voltage stabilizing diode D
5, the pressure regulation filtering circuit is by reometer CB
3, electrochemical capacitor C
2With WW POT W
1Form reometer CB
3With electrochemical capacitor C
2One terminating resistor R
3Output terminal, and reometer CB
3The other end through wire-wound potentiometer W
1Connect electric bridge, electric bridge is by wire-wound resistor R
5～8, zero-regulator resistor R
0With WW POT W
2Form, wherein R
6Be sensitive resistance, link WW POT W with spring leaf
2Adjustable end through K switch
5The control connected control system.
Described rotational viscosimeter, control system is made up of synchronous motor control circuit, electric appliance control box, dry-type transformer, temperature controller, temperature indicator and thermopair, and wherein the synchronous motor control circuit is by K switch
6, voltage table CB
2, paper dielectric capacitor C
3Form, dry-type transformer connects electric-heating container, and links to each other with temperature indicator by temperature controller.
Described rotational viscosimeter, electric-heating container are fixed on the certain position under the measuring staff, make measuring staff can insert liquid certain depth in the electric-heating container.
Described rotational viscosimeter, electric control box is by amplifier, power transformer B
2With one group be used for monitoring the pilot lamp ZD whether general supply, synchronous motor power supply, electric-heating container power supply, inverter power supply are communicated with
1-4And K switch
1-4Form, amplifier is formed with thermopair and transducer respectively, is used to receive temperature signal and torque signal.
Described rotational viscosimeter, microprocessor system is made up of A D converter, main frame, display, printer, and main frame connects amplifier by A D converter.
Principle of work is: electric-heating container is fixed on the certain position of torque sensor below, makes measuring staff can insert liquid certain depth in the stove.When energized, synchronous motor drives measuring staff, gauge head rotates, and under the effect of fluid to be measured viscous force, gauge head and liquid rub, and the spring leaf that makes produces moment of torsion, and this is the Design of Torque Sensor principle.Torque sensor outputs to transducer with the mechanical elasticity modulus of liquid viscosity, converts ultra-weak electronic signal to by transducer, after control system is amplified signal, is sent to microprocessor system; The fluid temperature signal that the while thermopair records is input to microprocessor system after control system is amplified; Microprocessor system converts viscosity, the temperature signal that receives digital signal to and handles, last output temperature curve and viscograph.
Rotational viscosimeter of the present invention compared with prior art has following advantage: can at high temperature measure the temperature and the viscosity of liquid simultaneously, in measuring process, speed is fast, good reproducibility, precision height, has realized the automated randomized mensuration of liquid viscosity, and simple in structure.Because sensor itself almost do not have friction, therefore very accurate for the measurement of little viscosity, the viscosity measurement error only is＜± 4%; Measurement range is wide, 900 ℃～1800 ℃ of temperature surveys, and viscosity measurement scope 0.1～500Pa.S can be used for measuring liquid viscosity continuously or at random, is current comparatively perfect liquid viscosity determining instrument.
Fig. 1 is the block scheme of rotational viscosimeter of the present invention;
Fig. 2 is the structural representation that rotational viscosimeter torsion torque sensor of the present invention is implemented side;
Fig. 3 is the structural representation of rotational viscosimeter torquemeter of the present invention;
Fig. 4 is the circuit diagram of rotational viscosimeter of the present invention;
The invention will be further described below in conjunction with accompanying drawing:
Among Fig. 2, outer cover 1 is sleeved on and prevents on the shaft collar 7 that dust from entering, outer cover 1 inner synchronous machine 2 is fixed on the ring flange 3, be affixed on the shaft collar 7 by column 6, synchronous motor shaft 4 is fixedlyed connected with rotating shaft 10 upper ends through shaft joint 5, fixedly connected with torquemeter shell 12 upper ends through shaft joint 11 in rotating shaft 10 lower ends, torquemeter shell 12 lower ends are fixed on the lower fixed disk 15, are fixed with cooling jacket 8 between the upper and lower shaft collar.In the torquemeter shell 12, spring leaf 13 upper ends and rotating shaft 10 are fixedly connected, spring leaf 13 lower ends and last thimble 20 are fixedly connected, pendulum ring 14 is sleeved on locating piece 21 outsides, upper and lower thimble is fixed in the pendulum ring 14 and withstands on respectively in the hole up and down of locating piece 21, and following thimble 16 passes lower fixed disk 15 and is fixedly connected through square joint 17 and measuring staff 18, and measuring staff 18 bottoms are fixed with gauge head 19, transducer 9 is fixed in the rotating shaft 10, receives the torque signal of spring leaf 13 outputs.Torque sensor is fixed on aerial certain altitude by a cantilever, and electric-heating container is fixed on the certain position of torque sensor vertical lower, makes gauge head can insert fluid to be measured certain depth in the stove.Energized during mensuration, synchronous motor 2 rotates, and drives synchronous motor shaft 4, measuring staff 18, gauge head 19 commentaries on classics simultaneously.Measuring staff 18 inserts liquid and rotates, because fluid to be measured has certain viscosity, so gauge head produces resistance in liquid, and spring leaf 13 distortions are reacted on the sensor, and promptly torquemeter produces moment of torsion.This torque signal converts electric signal to by transducer 9, electric signal is after amplifier 27 amplifies, again through A D converter 28 convert digital signal to, being sent to main frame 29 handles: thermoelectricity is transferred to amplifier 27 every 25 with the fluid temperature signal simultaneously, signal input A after amplifying D converter 28 convert digital signal to, be transferred to main frame 29 then and handle, main frame 29 after with viscosity, processes temperature signal output temperature curve and viscograph on display 30, the printer 31.
Claims (6)
1, a kind of rotational viscosimeter is made up of synchronous motor, rotating shaft, torque sensor, electric-heating container, control system, microprocessor system, it is characterized in that:
Torque sensor comprises torquemeter, transducer, measuring staff and gauge head, wherein torquemeter comprises torquemeter shell, spring leaf, pendulum ring, goes up thimble, following thimble and locating piece, the spring leaf upper end is fixedly connected through torquemeter shell and rotating shaft, spring leaf lower end and last thimble are fixedly connected, the pendulum ring set is contained in the locating piece outside, upper and lower thimble is fixed in the pendulum ring and withstands on respectively in the hole up and down of locating piece, following thimble and measuring staff are fixedly connected, the measuring staff bottom is fixed with gauge head, transducer is fixed in the rotating shaft, receives the torque signal of spring leaf output;
The motor shaft of synchronous motor is fixedly connected through shaft joint and rotating shaft;
Electric-heating container is used to heat fluid to be measured, and its electric heating body adopts molybdenum disilicide material, temperature height, quick heating;
Control system is used to control each power supply UNICOM and fluid temperature, and with viscosity signal and temperature herdsman number amplification, is transported to microprocessor system;
Microprocessor system, the viscosity, the temperature signal that are used for receiving convert digital signal to and are handled, and export viscograph and temperature curve at last.
2, rotational viscosimeter as claimed in claim 1 is characterized in that: transducer is by transformer B
1, current rectifying and wave filtering circuit, mu balanced circuit, pressure regulation filtering circuit and electric bridge form, wherein current rectifying and wave filtering circuit is by commutation diode D
1, D
2With electrochemical capacitor C
1Form transformer B
1Output signal supply with mu balanced circuit through current rectifying and wave filtering circuit, mu balanced circuit is by metalfilmresistor R
1-3With voltage stabilizing diode D
3-5Form resistance R
1One termination commutation diode D
1-2Output terminal, its other end is successively through resistance R
2, R
3Connect the pressure regulation filtering circuit, in resistance R
1With resistance R
2The connection place is connected to voltage stabilizing diode D successively
3-4, in resistance R
2With resistance R
3The connection place be connected to voltage stabilizing diode D
5, the pressure regulation filtering circuit is by reometer CB
3, electrochemical capacitor C
2With WW POT W
1Form reometer CB
3With electrochemical capacitor C
2One terminating resistor R
3Output terminal, and reometer CB
3The other end through wire-wound potentiometer W
1Connect electric bridge, electric bridge is by wire-wound resistor R
5-8, zero-regulator resistor R
0With WW POT W
2Form, wherein R
8Be sensitive resistance, link WW POT W with spring leaf
2Adjustable end through K switch
5The control connected control system.
3, rotational viscosimeter as claimed in claim 1 is characterized in that: control system is made up of synchronous motor control circuit, electric appliance control box, dry-type transformer, temperature controller, temperature indicator and thermopair, and wherein the synchronous motor control circuit is by K switch
6, voltage table CB
2, paper dielectric capacitor C
3Form, dry-type transformer connects electric-heating container, and links to each other with temperature indicator by temperature controller.
4, rotational viscosimeter as claimed in claim 1 is characterized in that: electric-heating container is fixed on the certain position under the measuring staff, makes measuring staff can insert liquid certain depth in the electric-heating container.
5, as claim 1 or 4 described rotational viscosimeters, it is characterized in that: electric control box is by amplifier, power transformer B
2With one group be used for monitoring the pilot lamp ZD whether general supply, synchronous motor power supply, electric-heating container power supply, inverter power supply are communicated with
1-4And K switch
1-4Form, amplifier is formed with thermopair and transducer respectively, is used to receive temperature signal and torque signal.
6, rotational viscosimeter as claimed in claim 1 is characterized in that: microprocessor system is made up of A D converter, main frame, display, printer, and main frame connects amplifier by A D converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110559A CN1036613C (en) | 1994-04-23 | 1994-04-23 | Rotary viscosity meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110559A CN1036613C (en) | 1994-04-23 | 1994-04-23 | Rotary viscosity meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1118437A CN1118437A (en) | 1996-03-13 |
| CN1036613C true CN1036613C (en) | 1997-12-03 |
Family
ID=5034515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94110559A Expired - Fee Related CN1036613C (en) | 1994-04-23 | 1994-04-23 | Rotary viscosity meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1036613C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590272A (en) * | 2012-02-18 | 2012-07-18 | 殷子炫 | Shear stress-based swill-cooked dirty oil temperature change detection method and instrument |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1987413B (en) * | 2005-12-22 | 2011-02-16 | 煤炭科学研究总院 | Method and device for detecting high temperature high pressure oil coal slurry rheological characteristic |
| CN102128769A (en) * | 2010-12-21 | 2011-07-20 | 北京赛科希德科技发展有限公司 | Blood viscosity acquiring method and system |
| CN102247914B (en) * | 2011-04-20 | 2013-03-20 | 山东理工大学 | Ball grinding mill mud concentration detection method |
| WO2013002175A1 (en) * | 2011-06-30 | 2013-01-03 | Dic株式会社 | Reaction solution viscosity detection method, reaction solution viscosity detection device, method for obtaining reaction product, and manufacturing device for obtaining reaction product |
| CN103728211B (en) * | 2013-11-16 | 2016-02-03 | 平湖市永光机械配件有限公司 | A kind of head protector of viscosity meter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4334424A (en) * | 1979-02-22 | 1982-06-15 | Andre Kepes | Process for determining the rheometric properties of materials and apparatus carrying out said process |
| US4535621A (en) * | 1982-10-25 | 1985-08-20 | Institut National De La Recherche Agronomique | Process and apparatus for measuring rheological properties of semi-solid bodies by harmonic shear in rotation |
| WO1987001450A1 (en) * | 1985-09-03 | 1987-03-12 | Viscometers (U.K.) Limited | Viscometer |
| EP0264236A2 (en) * | 1986-10-10 | 1988-04-20 | Haake-Buchler Instruments, Inc. | Method for testing repeatability of a rheologic system |
-
1994
- 1994-04-23 CN CN94110559A patent/CN1036613C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4334424A (en) * | 1979-02-22 | 1982-06-15 | Andre Kepes | Process for determining the rheometric properties of materials and apparatus carrying out said process |
| US4535621A (en) * | 1982-10-25 | 1985-08-20 | Institut National De La Recherche Agronomique | Process and apparatus for measuring rheological properties of semi-solid bodies by harmonic shear in rotation |
| WO1987001450A1 (en) * | 1985-09-03 | 1987-03-12 | Viscometers (U.K.) Limited | Viscometer |
| EP0264236A2 (en) * | 1986-10-10 | 1988-04-20 | Haake-Buchler Instruments, Inc. | Method for testing repeatability of a rheologic system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102590272A (en) * | 2012-02-18 | 2012-07-18 | 殷子炫 | Shear stress-based swill-cooked dirty oil temperature change detection method and instrument |
| CN102590272B (en) * | 2012-02-18 | 2014-03-26 | 殷子炫 | Shear stress-based swill-cooked dirty oil temperature change detection method and instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1118437A (en) | 1996-03-13 |
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