CN208171799U - A kind of efficient Pulling escape surface tension coefficient measurement device - Google Patents
A kind of efficient Pulling escape surface tension coefficient measurement device Download PDFInfo
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- CN208171799U CN208171799U CN201820842611.4U CN201820842611U CN208171799U CN 208171799 U CN208171799 U CN 208171799U CN 201820842611 U CN201820842611 U CN 201820842611U CN 208171799 U CN208171799 U CN 208171799U
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- surface tension
- culture dish
- liquid
- tension coefficient
- measurement device
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Abstract
The utility model belongs to technical field of experiment equipment, and in particular to a kind of efficient Pulling escape surface tension coefficient measurement device；Including pedestal, upright bar, installing frame, force-sensing sensor and metal shell, digital voltmeter, metal ring, first crossbeam, second cross beam, support rod, liquid containing cylinder, pallet, culture dish, fixed frame and Fresnel Lenses；Not only measurement efficiency is higher for the utility model, but also every detect does not need to pour out liquid therein by removing culture dish when detecting another liquid again after a kind of liquid, saves manpower；And four kinds of liquid can be once held in liquid containing cylinder, and it is convenient that four kinds of different liquids are detected, improve the efficiency of detection；Furthermore being applicable in for Fresnel Lenses can amplify region to be observed, can accurately capture the voltage value for that time that fluid column is pulled off, so that the voltage value read is inaccurate, to influence the accuracy of measuring surface tension coefficient.
Description
Technical field
The utility model belongs to technical field of experiment equipment, and in particular to a kind of efficient Pulling escape surface tension coefficient survey
Determine device.
Background technique
Surface tension is liquid surface layer due to molecular attraction is unbalanced and generate along surface action in any boundary line
Tension.The method of measurement liquid surface tension coefficient usually has：Pulling escape, Capillary rise method and drop check weighing method etc..And
Pulling escape is a kind of the most commonly used measuring method.Drum-shaped metal eye portion is immersed in liquid, observation hanging ring immerses
Physical process and phenomenon in liquid and from liquid when pull-up.When hanging ring breaks the pulling force peak value in a flash of liquid level, as should
The surface tension of liquid.So that hanging ring is broken the common method of liquid level is：During measuring liquid surface tension coefficient, observable
To liquid generate buoyancy and tension the case where and phenomenon, when rotating clockwise lifting platform big nut liquid levels rise, when
It when ring lower edge part is immersed in liquid, is changed to rotate counterclockwise the nut, at this moment liquid level is (past with respect to hanging ring in other words toward declining
Upper lifting), observation ring immerses in liquid and physical process and phenomenon from liquid when pull-up.Especially it should be noted that hanging ring will be drawn
Digital voltmeter reading value is U1 in a flash before disconnected fluid column, and moment digital voltage meter reading is U2 when breaking.Write down the two numbers
Value.Then pass through
F=α π (ten D2 of D1) (1)
In formula, F is breakaway force, and D1, D2 are respectively the outer diameter and inner diameter of annulus, and α is the surface tension coefficient of liquid
△ U=KF (2)
In formula, F is the size of external force, and K is the sensitivity of Si-resistance-strain gauge, and △ U is sensor output voltage
Size.
The surface tension coefficient of liquid can be found out by above two formula.
A kind of Pulling escape measurement surface tension of liquid is provided in the patent document application No. is CN201620670018.7
Coefficient experimental provision：Including stepper motor, gear drive, the lifting platform for placing fluid to be measured and for measuring quilt
The measuring unit of the surface tension coefficient of liquid is surveyed, the lift adjustment nut of lifting platform passes through gear drive and stepper motor
It is connected.The utility model controls lift adjustment nut using stepper motor and gear drive, goes up and down lifting platform at the uniform velocity,
Fluid to be measured liquid level can be made uniformly to decline, significantly reduce liquid fluctuating, increase measurement precision, reduce experimental error.
Although above-mentioned patent document can be such that lifting platform at the uniform velocity goes up and down, decline fluid to be measured liquid level uniformly, significantly reduces liquid
Surface wave is dynamic, increases measurement precision, reduces experimental error.But its there are still following shortcomings to need to improve：
1, measurement efficiency is lower, measures after a kind of liquid is put into surface tension, needs to remove in culture dish, and will be therein
Water is poured out.If necessary to need repeatedly to inject into culture dish different when detecting the surface tension of plurality of liquid
Liquid, and need continually to remove culture dish, liquid therein is poured out, labor intensive is compared, but also detection efficiency
It reduces.
It 2,, may when observation ring lower edge part is moved in the liquid in culture dish for the people having defective vision
Meeting is because the voltage value for that time that fluid column is pulled off cannot be captured accurately, so that the voltage value read is inaccurate, from
And influence the accuracy of measuring surface tension coefficient.
3, lift adjustment nut, although lifting platform is at the uniform velocity gone up and down, energy are controlled using stepper motor and gear drive
Decline fluid to be measured liquid level uniformly, but its fluctuation that inevitably will increase liquid in culture dish, to increase reality
The error tested reduces the accuracy of experiment.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of efficient Pulling escape surface tension coefficient measurement dress
It sets, not only measurement efficiency is higher, but also every detect does not need when detecting another liquid again after a kind of liquid by removing culture
Ware pours out liquid therein, saves manpower；And four kinds of liquid can be once held in liquid containing cylinder, it is convenient to four kinds of differences
Liquid is detected, and the efficiency of detection is improved；Furthermore being applicable in for Fresnel Lenses can amplify region to be observed,
The voltage value for that time that fluid column is pulled off can be accurately captured, so that the voltage value read is inaccurate, to influence reality
The accuracy of surface tension coefficient is determined in test；In addition, adjusting the cross bar of bolt and lift adjustment bolt head by manually adjusting
It can to adjust more convenient and quick when bolt, and the vibration amplitude manually adjusted is relatively small, reduces experimental error.
The utility model is achieved by the following technical programs：
A kind of efficient Pulling escape surface tension coefficient measurement device, including pedestal, upright bar, installing frame, force-sensing sensor
And metal shell, digital voltmeter, metal ring, first crossbeam, second cross beam, support rod, liquid containing cylinder, pallet, culture
Ware, fixed frame and Fresnel Lenses；The end of the pedestal upper surface, which is run through to be equipped with, adjusts bolt, the head for adjusting bolt
Portion is circumferentially transversely provided with several cross bars；Upright bar is fixedly connected in the middle part of the pedestal upper surface, the upright bar is from top to bottom
It is successively arranged installing frame, first crossbeam and second cross beam；Force-sensing sensor and metal shell, the number are equipped in the installing frame
Word voltmeter and force-sensing sensor are electrically connected, and the right part of the force-sensing sensor bottom is equipped with suspension line, the suspension line
The metal ring for being connected with hook with top is connected；The first crossbeam and second cross beam pass through the fixation spiral shell of its left part
Silk is slidably arranged in upright bar；The middle part of the first crossbeam upper surface is equipped with support rod, is rotatably connected to liquid on support rod
Cylinder is held, the inside of the liquid containing cylinder is divided into four sector-shaped compartments, and the bottom of each sector-shaped compartments by cross partition
Portion is equipped with drainpipe；The first crossbeam and the right part of second cross beam upper surface, which longitudinally run through, offers circular through hole, institute
Pallet to be stated to be plugged in circular through hole by the column of its bottom, the top of the pallet is contained with culture dish, and culture dish
Bottom is incline structure, and the edge of culture dish bottom offers drainpipe；The right part of the first crossbeam is fixed with
Determine frame, Fresnel Lenses is plugged in the fixed frame, the circular through hole internal screw thread of the second cross beam right part is connected with lifting
Bolt is adjusted, the head of the lift adjustment bolt is circumferentially transversely provided with several cross bars.
Preferably, the metal ring is connected with the hook at the top of it by three wires.
Preferably, the volume of sector-shaped compartments is less than the volume of culture dish.
Preferably, the bottom thread of the drainpipe is connected with pipe cap.
Preferably, the culture dish is by sticking double faced adhesive tape in the bottom of pallet.
Preferably, the metal ring is located at the surface of culture dish.
Preferably, the top of the support rod is fixed with rounded tabs, and the side of the liquid containing cylinder is equipped with and branch
The top of the rounded tabs is arranged in by lantern ring for the lantern ring that strut matches, the liquid containing cylinder.
Preferably, effective adjustment length value of the lift adjustment bolt is greater than the depth value of the culture dish.
The beneficial effects of the utility model are：
1, measurement efficiency is higher, measures after a kind of liquid is put into surface tension, does not need to remove in culture dish, by removing
The pipe cap for draining bottom of the tube, just pours out water therein.If necessary to only need when being detected to the surface tension of plurality of liquid
First four kinds of different liquid to be detected is poured into four sector-shaped compartments of liquid containing cylinder, then rotates liquid containing cylinder extremely
Suitable position can detect different liquids surface tension coefficient.It does not need repeatedly to inject different liquid into culture dish,
And do not need frequently to remove culture dish when replacing liquid after detecting, compare saving manpower, but also detection efficiency obtains
It improves.
2, the use of Fresnel Lenses can amplify region to be observed, and experimenter can be helped accurately to capture fluid column quilt
The instantaneous voltage value broken, so as to improve reading voltage value accuracy, thus guarantee measure surface tension coefficient standard
Exactness and authenticity.
3, to adjust the liquid level in culture dish by can be manually rotated the cross bar of adjusting bolt and lift adjustment bolt head
It is more convenient and quick when height, and manually adjust relatively small to the liquid level vibration amplitude in culture dish, reduce experiment
Error.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial vertical sectional structural schematic diagram of culture dish in the utility model；
Fig. 3 is the partial structural diagram of the utility model.
In figure：1- pedestal, 2- upright bar, 3- installing frame, 4- force-sensing sensor and metal shell, 5- digital voltmeter, 6- gold
Belong to annulus, 7- first crossbeam, 8- second cross beam, 9- support rod, 10- liquid containing cylinder, 11- pallet, 12- culture dish, 13- to fix
Frame, 14- Fresnel Lenses, 15- adjust bolt, 16- cross bar, 17- drainpipe, 18- lift adjustment bolt, 19- wire, 20-
Pipe cap, 21- rounded tabs, 22- lantern ring, 23- column.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
A kind of efficient Pulling escape surface tension coefficient measurement device, including pedestal 1, upright bar 2, installing frame 3, the quick sensing of power
Device and metal shell 4, digital voltmeter 5, metal ring 6, first crossbeam 7, second cross beam 8, support rod 9, liquid containing cylinder 10,
Pallet 11, culture dish 12, fixed frame 13 and Fresnel Lenses 14；The end of 1 upper surface of pedestal, which is run through to be equipped with, adjusts bolt 15,
The head for adjusting bolt 15 is circumferentially transversely provided with several cross bars 16；Pedestal is fixedly connected with upright bar 2 in the middle part of 1 upper surface, stands
Bar 2 is successively arranged installing frame 3, first crossbeam 7 and second cross beam 8 from top to bottom；Force-sensing sensor and metal are equipped in installing frame 3
Shell 4, digital voltmeter 5 and force-sensing sensor are electrically connected, and the right part of force-sensing sensor bottom is equipped with suspension line, suspension line
The metal ring 6 for being connected with hook with top is connected；First crossbeam 7 and second cross beam 8 pass through the fixation spiral shell of its left part
Silk is slidably arranged in upright bar 2；The middle part of 7 upper surface of first crossbeam is equipped with support rod 9, is rotatably connected to liquid on support rod 9
Cylinder 10 is held, the inside of liquid containing cylinder 10 is divided into four sector-shaped compartments, and the bottom of each sector-shaped compartments by cross partition
Portion is equipped with drainpipe 17；The right part of 8 upper surface of first crossbeam 7 and second cross beam longitudinally through circular through hole is offered, is held in the palm
Disk 11 is plugged in circular through hole by the column 23 of its bottom, and the top of pallet 11 is contained with culture dish 12, and culture dish 12
Bottom be incline structure, the edge of 12 bottom of culture dish offers drainpipe 17；The right part of first crossbeam 7 is fixed with
Fixed frame 13 is plugged with Fresnel Lenses 14 in fixed frame 13, and the circular through hole internal screw thread of 8 right part of second cross beam is connected with lifting
Bolt 18 is adjusted, the head of lift adjustment bolt 18 is circumferentially transversely provided with several cross bars 16.
Specifically, metal ring 6 is connected with the hook at the top of it by three wires 19；The volume of sector-shaped compartments is small
In the volume of culture dish 12；The bottom thread of drainpipe 17 is connected with pipe cap 20；Culture dish 12 is by sticking double faced adhesive tape in pallet
11 bottom；Metal ring 6 is located at the surface of culture dish 12；The top of support rod 9 is fixed with rounded tabs 21, and liquid is contained
The side for putting cylinder 10 is equipped with the lantern ring 22 matched with support rod 9, and liquid containing cylinder 10 is arranged by lantern ring 22 in rounded tabs
21 top；Effective adjustment length value of lift adjustment bolt 18 is greater than the depth value of culture dish 12.
For the utility model when measuring the surface tension coefficient of multiple groups liquid, measurement efficiency is higher, measures a kind of liquid and puts
It after entering surface tension, does not need to remove in culture dish 12, by removing the pipe cap 20 of 17 bottom of drainpipe, just fall water therein
Out.If necessary to when detecting the surface tension of plurality of liquid, only need first to pour into four kinds of different liquid to be detected
In four sector-shaped compartments of liquid containing cylinder 10, different liquids can be detected by then rotating liquid containing cylinder 10 to suitable position
Surface tension coefficient.It detects with distilled water that the residual liquid in culture dish 12 is clear when the surface tension coefficient of different liquids sample
Wash clean, and be discharged from drainpipe 17.The bottom of culture dish 12 is incline structure, facilitates and liquid therein is sufficiently discharged,
Reduce experimental error caused by when measuring next fluid sample.It does not need repeatedly to inject different liquid into culture dish 12
Body, and do not need frequently to remove culture dish 12 when replacement liquid after detection, compare saving manpower, but also detection efficiency
It is improved.The use of Fresnel Lenses 14 can amplify region to be observed, experimenter can be helped accurately to capture fluid column
The instantaneous voltage value that is pulled off, so as to improve reading voltage value accuracy, to guarantee to measure surface tension coefficient
Accuracy and authenticity.Cross bar 16 by can be manually rotated adjusting bolt 15,18 head of lift adjustment bolt makes whole device
In horizontality, adjust the liquid level in culture dish 12 when it is more convenient and quick, and manually adjust to culture dish 12
Interior liquid level vibration amplitude is relatively small, reduces experimental error.In addition, the installation of the Fresnel Lenses 14 in the utility model
It is also more convenient with dismantling.
Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality
Example is applied the utility model is described in detail, those skilled in the art should understand that：It still can be to preceding
Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these
It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution
It encloses.
Claims (8)
1. a kind of efficient Pulling escape surface tension coefficient measurement device, including pedestal, upright bar, installing frame, force-sensing sensor and
Metal shell, digital voltmeter, metal ring, first crossbeam, second cross beam, support rod, liquid containing cylinder, pallet, culture dish,
Fixed frame and Fresnel Lenses；It is characterized in that：The end of the pedestal upper surface, which is run through to be equipped with, adjusts bolt, the adjusting
The head of bolt is circumferentially transversely provided with several cross bars；Upright bar, the upright bar are fixedly connected in the middle part of the pedestal upper surface
It is successively arranged installing frame, first crossbeam and second cross beam from top to bottom；It is equipped with outside force-sensing sensor and metal in the installing frame
Shell, the digital voltmeter and force-sensing sensor are electrically connected, and the right part of the force-sensing sensor bottom is equipped with suspension line, institute
It states suspension line and is connected with the metal ring that top is connected with hook；The first crossbeam and second cross beam pass through its left part
Fixed screw be slidably arranged in upright bar；The middle part of the first crossbeam upper surface is equipped with support rod, the company of rotation on support rod
It is connected to liquid containing cylinder, the inside of the liquid containing cylinder is divided into four sector-shaped compartments, and each sector by cross partition
The bottom of chamber is equipped with drainpipe；The first crossbeam and the right part of second cross beam upper surface, which longitudinally run through, offers circle
Through-hole, the pallet are plugged in circular through hole by the column of its bottom, and the top of the pallet is contained with culture dish, and trains
The bottom for supporting ware is incline structure, and the edge of culture dish bottom offers drainpipe；The right part of the first crossbeam is fixed
Equipped with fixed frame, Fresnel Lenses, the circular through hole internal screw thread connection of the second cross beam right part are plugged in the fixed frame
There is lift adjustment bolt, the head of the lift adjustment bolt is circumferentially transversely provided with several cross bars.
2. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is described
Metal ring is connected with the hook at the top of it by three wires.
3. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is fan-shaped
The volume of chamber is less than the volume of culture dish.
4. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is described
The bottom thread of drainpipe is connected with pipe cap.
5. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is described
Culture dish is by sticking double faced adhesive tape in the bottom of pallet.
6. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is described
Metal ring is located at the surface of culture dish.
7. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is described
The top of support rod is fixed with rounded tabs, and the side of the liquid containing cylinder is equipped with the lantern ring matched with support rod, institute
State the top that the rounded tabs are arranged in by lantern ring for liquid containing cylinder.
8. a kind of efficient Pulling escape surface tension coefficient measurement device according to claim 1, it is characterised in that：It is described
Effective adjustment length value of lift adjustment bolt is greater than the depth value of the culture dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820842611.4U CN208171799U (en) | 2018-05-31 | 2018-05-31 | A kind of efficient Pulling escape surface tension coefficient measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820842611.4U CN208171799U (en) | 2018-05-31 | 2018-05-31 | A kind of efficient Pulling escape surface tension coefficient measurement device |
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| Publication Number | Publication Date |
|---|---|
| CN208171799U true CN208171799U (en) | 2018-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820842611.4U Expired - Fee Related CN208171799U (en) | 2018-05-31 | 2018-05-31 | A kind of efficient Pulling escape surface tension coefficient measurement device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208171799U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594023A (en) * | 2022-05-10 | 2022-06-07 | 南京相科数码有限公司 | Ink detection surface tension measuring device for digital printing |
-
2018
- 2018-05-31 CN CN201820842611.4U patent/CN208171799U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114594023A (en) * | 2022-05-10 | 2022-06-07 | 南京相科数码有限公司 | Ink detection surface tension measuring device for digital printing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181130 Termination date: 20210531 |