CN207336298U - Viscosity measurements sensor based on the coupling of double piezoelectricity - Google Patents
Viscosity measurements sensor based on the coupling of double piezoelectricity Download PDFInfo
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- CN207336298U CN207336298U CN201720126830.8U CN201720126830U CN207336298U CN 207336298 U CN207336298 U CN 207336298U CN 201720126830 U CN201720126830 U CN 201720126830U CN 207336298 U CN207336298 U CN 207336298U
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- quartz crystal
- piezoelectric quartz
- support positioning
- installation
- fastening
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Abstract
A kind of viscosity measurements sensor based on the coupling of double piezoelectricity, belongs to viscosity measurements technical field, it is characterized in that：Piezoelectric quartz crystal is fastened in support base screens, mechanical oscillation conductive post is glued between output unit and feedback unit, output unit is positioned in the insulation screens on piezoelectric quartz crystal fastening support seat with feedback unit, installation support positioning gland is equipped with the mounting hole passed through for screw with installation support positioning base, wherein installation support positioning base is equipped with the screens of installation elastic component, elastic component is pressed into installation support positioning base by installation support positioning gland, support positioning gland and support positioning base fastening.Beneficial effect is：To piezoelectric quartz crystal fastener rational deployment, be conducive to air guided flowing, reduce influence of the air-flow to inspection, and piezoelectric quartz crystal fastener has the function of to insulate and is electromagnetically shielded, and eliminates influence of the objective factor to test result；The utility model devises circular spring member, enhances the function of seismic resistance of system, farthest reduces mechanical oscillation, reduces the influence of outer bound pair test result.
Description
Technical field
The utility model belongs to viscosity measurements technical field, and in particular to biology, chemical industry, medical treatment, environment measuring equipment
Improve.
Background technology
In recent years, viscosity measurement is widely used in the fields such as oil, coating, food, biochemistry, medicine, material and chemical industry,
The assessment of performance of its quality control and final products to production link plays an important role, and improves the accuracy of viscosity measurement
The economic value and social value of higher can be created.
Traditional Viscosity Measurement Methods have developed relative maturity, mainly including falling ball method, rotary process, capillary tube method etc..Fall
Ball is mainly to measure viscosity by measuring falling bodies by the two fixed points time used, but due to using manual stopwatch timing,
And the visual persistence effect of people influences, and can bring timing error to experimental result；Rotary process is mainly made by measuring fluid
The viscosity of liquid is determined for the sticky torque of object or the rotating speed of object, but by the way of pointer reading, makes stabilization
Property and accuracy of reading are somewhat limited；Though capillary tube method is as a kind of very practical Viscosity Measurement Methods, because of it
The limitation of structure, is easily blocked by small particle, and is cleaned and dried very troublesome.Above method is respectively from different angles to quilt
This viscosity of test sample is measured, but can not provide accurate measurement data mostly, and Part Methods are non-to environmental condition requirement
Often harsh, distance field application also has very big distance.
Utility model content
The purpose of this utility model is：A kind of viscosity measurements sensor based on the coupling of double piezoelectricity is provided, it is by piezoelectricity stone
The direct piezoelectric effect of English crystal is combined with inverse piezoelectric effect, and using double piezoelectricity coupling techniques, measurand is directly converted
For electric signal output.
The technical solution of the utility model is：By miniature probe, piezoelectric quartz crystal fastening upper press cover, output unit, machine
Tool conduct vibrations column, piezoelectric quartz crystal fastening support seat, feedback unit, piezoelectric quartz crystal fastening lower cover, installation support
Positioning gland, elastic component, installation support positioning base composition.
Axial oscillation occurs for starting of oscillation unit under the action of external high-frequency pumping signal, utilizes two kinds of piezoelectric quartz crystal
The variable quantity of tested sample viscosity, is converted into the variable quantity of voltage by effect, by this method indirect detection detected sample body
The viscosity change law of system, this rule are ultimately converted to test required tested sample viscosity by by the reception of feedback unit
Data.
Piezoelectric quartz crystal is fastened in the screens for the installation piezo-electric crystal that support base is equipped with, in piezoelectric quartz crystal fastening
Gland, piezoelectric quartz crystal fastening support seat and piezoelectric quartz crystal fastening lower cover are equipped with the mounting hole passed through for screw,
Mechanical oscillation conductive post is glued between output unit and feedback unit, and output unit is positioned over piezoelectric quartz crystalline substance with feedback unit
In insulation screens on body fastening support seat, piezoelectric quartz crystal is fastened successively by upper press cover, output unit, machinery by screw and is shaken
Dynamic conductive post, piezoelectric quartz crystal fastening support seat, feedback unit, elastic component and piezoelectric quartz crystal fastening lower cover pass through
And fasten；Installation support positioning gland is equipped with the mounting hole passed through for screw with installation support positioning base, wherein installation support
Positioning base is equipped with the screens of installation elastic component, and elastic component is pressed into installation support positioning bottom by installation support positioning gland
In seat, support positioning gland and installation support positioning base fastening will be installed by screw.
The beneficial effects of the utility model are：To piezoelectric quartz crystal fastener rational deployment, be conducive to directional air flow
It is dynamic, influence of the air-flow to inspection is reduced, and piezoelectric quartz crystal fastener has the function of to insulate and be electromagnetically shielded that it is objective to eliminate
Influence of the factor to test result；The utility model devises circular spring member, enhances the function of seismic resistance of system, maximum journey
The reduction mechanical oscillation of degree, reduce the influence of outer bound pair test result；The utility model is small, it is light-weight, be convenient for carrying, outside
It is generous to see design, facilitates later stage sensor to upgrade and for other test devices.
Brief description of the drawings
Fig. 1 is the utility model assembling assumption diagram.
Fig. 2 is the utility model axonometric drawing.
Fig. 3 is the utility model elastic component schematic diagram.
Embodiment
Embodiment 1
The utility model is described further below in conjunction with the accompanying drawings：
As shown in the figure, wherein, 1 it is miniature probe, 2 is piezoelectric quartz crystal fastening upper press cover, 3 is output unit, 4 is machine
Tool conduct vibrations column, 5 be piezoelectric quartz crystal fastening support seat, 6 be feedback unit, 7 be piezoelectric quartz crystal fastening lower cover,
8 be installation support positioning gland, 9 be elastic component, 10 be installation support positioning base.
The miniature probe 1 is glued in 3 surface of output unit, for transmitting and feeding back tested sample viscosity change law letter
Number；The piezoelectric quartz crystal fastening support seat 5 is equipped with the screens of installation piezo-electric crystal, and is pressed in piezoelectric quartz crystal fastening
Lid 2, piezoelectric quartz crystal fastening support seat 5 and piezoelectric quartz crystal fastening lower cover 7 are equipped with the mounting hole passed through for screw,
Mechanical oscillation conductive post 4 is glued between output unit 3 and feedback unit 6, and the output unit 3 is positioned over feedback unit 6
In insulation screens on piezoelectric quartz crystal fastening support seat 5, piezoelectric quartz crystal is fastened by upper press cover 2, defeated by screw successively
Go out unit 3, mechanical oscillation conductive post 4, piezoelectric quartz crystal fastening support seat 5, feedback unit 6, elastic component 9 and piezoelectric quartz
Crystal fastening lower cover 7 is passed through and fastened；The installation support positioning gland 8 is equipped with installation support positioning base 10 and supplies screw
The mounting hole passed through, wherein installation support positioning base 10 is equipped with the screens of installation elastic component 9, positioning gland is supported by installation
8 are pressed into elastic component 9 in installation support positioning base 10, and support positioning gland 8 and installation support positioning will be installed by screw
Base 10 fastens.
In this example, the sensor further includes some enameled wires, and one end of enameled wire is welded in output unit 3, feedback
On unit 6, the other end extends outer end.
In this example, above-mentioned miniature probe 1, piezo-electric crystal fastening upper press cover 2, mechanical oscillation conductive post 4, piezoelectric quartz are brilliant
Body fastening support seat 5, piezoelectric quartz crystal fastening 7 material of lower cover are resin material.
In this example, above-mentioned miniature probe 1 is glued to be glued in output in 3 surface of output unit and mechanical oscillation conductive post 4
Glue used is epoxide-resin glue between unit 3 and feedback unit 6.
In this example, the inner side of installation support positioning base 10 described above is equipped with an annular groove, the elastic component 9
Periphery be contained in the groove, while be mounted the support limitation of positioning gland 8 and move up, i.e., by the way of being fixed using periphery.
In this example, above-mentioned output unit 3 is piezoelectric quartz crystal with feedback unit 6, and face shaping is circle, and area is small
In 5 area of piezo-electric crystal fastening support seat.
In this example, above-mentioned elastic component 9 is shaped grooved elastic component.
In this example, a kind of blood viscosity detection sensor preparation method based on double piezoelectricity coupling techniques includes following step
Suddenly：
Step 1：The fixation end face of miniature probe 1 and an end face of output unit 3 are glued, then output
Unit 3 is positioned in the side annular groove of piezo-electric crystal fastening support seat 5, is internally provided with placing screens.
Step 2：One end face of mechanical oscillation conductive post 4 and an end face of output unit 3 are glued, it is another
A end face and an end face of feedback unit 6 are glued, and feedback unit 6 is positioned over piezo-electric crystal fastening support seat 5
It is again provided with placing screens in opposite side annular groove, inside it.
Step 3：Piezoelectric quartz crystal is fastened into upper press cover 2 and the side of piezoelectric quartz crystal fastening support seat 5 is pacified
Dress, piezoelectric quartz crystal fastening upper press cover 2 is equipped with installation positioning surface, by elastic component 9 and piezoelectric quartz crystal fastening support seat 5
Opposite side installed, and by piezoelectric quartz crystal fasten lower cover 7 installation positioning surface compressed.
Step 4：Piezoelectric quartz crystal is fastened by upper press cover 2, piezoelectric quartz crystal fastening support seat 5 and pressure by rotation
Electric quartz crystal fastening lower cover 7 aligns with the fixing screw hole on elastic component 9, is carried out above-mentioned four workpiece tightly with screw
Gu limit it to vertically move.
Step 5：The outer ring of elastic component 9 is positioned in the outer annular groove of installation support positioning base 10, it is internal
Equipped with installation screens, compressed with installation support positioning gland 8, installation support positioning gland 8 is equipped with installation end face.
Step 6：By rotating the fixing screw hole pair on installation support positioning gland 8, support positioning base 10
Together, above-mentioned two workpiece is fastened with screw, limits it and vertically move.
In this example, elastic component 9 described in above-mentioned steps is shaped grooved elastic component.
In this example, the inner side of installation support positioning base 10 is equipped with an annular groove, the elasticity described in above-mentioned steps
The periphery of component 9 is contained in the groove, while mounted support positioning gland 8 limits it and moves up.
In this example, elastic component 9 described in above-mentioned steps is equipped with the mounting hole passed through for screw to be interior.
In this example, the inner side of piezo-electric crystal fastening support seat 5 described in above-mentioned steps is equipped with second ring groove, the output
The periphery of unit 3 and feedback unit 6 is contained in the groove, while brilliant by piezoelectric quartz crystal fastening upper press cover 2 and piezoelectric quartz
Body fastening lower cover 7 limits the movement of its vertical direction.
Claims (1)
1. a kind of viscosity measurements sensor based on the coupling of double piezoelectricity, it is characterized in that：Piezoelectric quartz crystal is fastened on piezoelectric quartz
In the screens for the installation piezoelectric quartz crystal that crystal fastening support seat is equipped with, piezoelectric quartz crystal fastening upper press cover, piezoelectric quartz
Crystal fastening support seat is equipped with the mounting hole passed through for screw, mechanical oscillation conductive post with piezoelectric quartz crystal fastening lower cover
It is glued between output unit and feedback unit, output unit is positioned on piezoelectric quartz crystal fastening support seat with feedback unit
Insulation screens in, by screw successively by piezoelectric quartz crystal fasten upper press cover, output unit, mechanical oscillation conductive post, piezoelectricity
Quartz crystal fastening support seat, feedback unit, elastic component and piezoelectric quartz crystal fastening lower cover are passed through and fastened；Installation branch
Support positioning gland is equipped with the mounting hole passed through for screw with installation support positioning base, wherein installation support positioning base is equipped with peace
The screens of elastic component is filled, elastic component is pressed into installation support positioning base by installation support positioning gland, will by screw
Installation support positioning gland and installation support positioning base fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126830.8U CN207336298U (en) | 2017-02-13 | 2017-02-13 | Viscosity measurements sensor based on the coupling of double piezoelectricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720126830.8U CN207336298U (en) | 2017-02-13 | 2017-02-13 | Viscosity measurements sensor based on the coupling of double piezoelectricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207336298U true CN207336298U (en) | 2018-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720126830.8U Expired - Fee Related CN207336298U (en) | 2017-02-13 | 2017-02-13 | Viscosity measurements sensor based on the coupling of double piezoelectricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207336298U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644832A (en) * | 2017-02-13 | 2017-05-10 | 长春理工大学 | Viscosity detection sensor based on double piezoelectric coupling |
-
2017
- 2017-02-13 CN CN201720126830.8U patent/CN207336298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106644832A (en) * | 2017-02-13 | 2017-05-10 | 长春理工大学 | Viscosity detection sensor based on double piezoelectric coupling |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180508 Termination date: 20210213 |
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| CF01 | Termination of patent right due to non-payment of annual fee |