CN102636417A - Leakage and pulling-out device for measuring liquid surface tension coefficient by pulling-off method - Google Patents
Leakage and pulling-out device for measuring liquid surface tension coefficient by pulling-off method Download PDFInfo
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- CN102636417A CN102636417A CN201210107461XA CN201210107461A CN102636417A CN 102636417 A CN102636417 A CN 102636417A CN 201210107461X A CN201210107461X A CN 201210107461XA CN 201210107461 A CN201210107461 A CN 201210107461A CN 102636417 A CN102636417 A CN 102636417A
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- leakage
- surface tension
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Abstract
The invention relates to the field of a physical experiment device and particularly relates to leakage and pulling-out device for measuring the liquid surface tension coefficient by the pulling-off method. When liquid in the existing instrument moves downwards, the liquid is easy to shake and the liquid slides off from a hanging ring in advance. According to the technical scheme, 10-15 liquid leakage holes with the diameter of 0.1 mm are arranged at the bottom of a liquid box; the hanging ring is placed in the middle of the box and a certain quantity of liquid is poured to immerse 2-3 mm of the hanging ring; then, the liquid level starts to descend, and an instrument reading needs to be carefully observed before the liquid level is pulled out and an instrument reading with a stable numerical value needs to be carefully observed after the liquid level is pulled out, a reading difference before and after the device is pulled out needs to be carefully observed and the perimeter of the hanging ring needs to be carefully observed, so as to calculate the surface tension of the liquid. The liquid is leaked so that the liquid level is slowly descended and the liquid level does not shake and the measured result is more accurate; and the device has simpler structure and lower cost, and is more convenient to maintain; and if a plastic box is used, the leakage and pulling-out device can be prevented from being broken by throwing.
Description
Technical field
The invention relates to the field of physics experimental apparatus, especially the pull-off measurement of liquid surface tension coefficient La off device.
Background technology
What pull the employing of method liquid surface tension coefficient is the table top at first ascending liquid box place; Make liquid touch suspension ring and submergence suspension ring certain altitude; Screw thread under the manual then rotary table top descends table top, because the part position of the non-uniform movement of hand and screw thread is rough, causes occurring easily in the liquid folding process rocking; Make liquid in advance from the suspension ring landing, it is less than normal to cause surface tension coefficient to measure numerical value.
Summary of the invention
The present invention overcomes the method that pulls to measure liquid surface tension coefficient and in the liquid folding process, produce the deficiency of rocking, and the present invention adopts the method for aperture leakage body that liquid level is steadily descended.
The present invention solves the technical scheme that its technical matters adopts: fluid cartridge diameter 15cm, high 2cm, and aperture 10-15 of diameter 0.1mm arranged at the bottom, and the container of a storage liquid is arranged under the fluid cartridge, and the container of storage liquid is diameter 15cm, high 4cm.The surface tension of the rings into the middle of the liquid cartridge, a certain amount of liquid into the liquid immersion rings 2-3mm, liquid starts to drain down the liquid level begins to drop, to observe the surface tension meter readings, especially La off before reading level, stable value after delinking La La off after recording readings, measuring devices, La off after reading poor and measuring the circumference of the rings can be calculated liquid surface tension coefficient.
The beneficial effects of the present invention are: leakage under the surface of the liquid decreases slowly shaking liquid does not appear to prevent premature La shaking causes the rings off, the measurement results more accurate; the La-off device moves up and down relative to thread lead countertops move method, the device easier, cheaper, easier to maintain, and if you can avoid using plastic box broke.
Description of drawings
Fig. 1 is that leakage pulls schematic representation of apparatus.
Wherein, 1, liquid storage box, 2, fluid cartridge, 3, liquid-leaking nozzle.
Embodiment
The liquid cartridge 2 is placed in the reservoir above the liquid container 1, the liquid cartridge adjusting rings in the middle, into a certain amount of liquid, the liquid immersion rings 2-3mm, and liquid leakage from the drain hole 3 starts, the meniscus slowly steady decline, began to increase the value of measuring instrument, careful attention to the value of change, especially in front of the rings La off values, La delinked from other numerical stability after a little off after recording La readings, according to the measuring instrument off before La instantaneous state reading and La off after a stable reading difference, as well as inner and outer rings, we can calculate the liquid surface tension coefficient.
Claims (1)
1. the leakage of measuring liquid surface tension coefficient of the present invention's method that pulls pulls device and is made up of a liquid storage box and the fluid cartridge by liquid-leaking nozzle, it is characterized in that: fluid cartridge diameter 15cm, high 2cm, and the bottom has the aperture 10-15 of diameter 0.1mm individual; The container that a storage liquid is arranged under the fluid cartridge, the container of storage liquid is diameter 15cm, high 4cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210107461XA CN102636417A (en) | 2012-04-13 | 2012-04-13 | Leakage and pulling-out device for measuring liquid surface tension coefficient by pulling-off method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210107461XA CN102636417A (en) | 2012-04-13 | 2012-04-13 | Leakage and pulling-out device for measuring liquid surface tension coefficient by pulling-off method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102636417A true CN102636417A (en) | 2012-08-15 |
Family
ID=46620896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210107461XA Pending CN102636417A (en) | 2012-04-13 | 2012-04-13 | Leakage and pulling-out device for measuring liquid surface tension coefficient by pulling-off method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102636417A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245594A (en) * | 2013-05-21 | 2013-08-14 | 四川大学 | Device for measuring liquid surface tension by pull-out method |
| CN104849179A (en) * | 2015-06-13 | 2015-08-19 | 山西医科大学 | Automatic leveling device for liquid surface tension coefficient measurement |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089635U (en) * | 1991-03-21 | 1991-11-27 | 北京大学 | Surface tension measuring device by volume |
| CN200950116Y (en) * | 2006-07-18 | 2007-09-19 | 文景 | Liquid surface tension coefficient measuring instrument |
| CN201946193U (en) * | 2011-01-04 | 2011-08-24 | 孟庆林 | Liquid surface tension coefficient measuring device for chemistry teaching |
-
2012
- 2012-04-13 CN CN201210107461XA patent/CN102636417A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2089635U (en) * | 1991-03-21 | 1991-11-27 | 北京大学 | Surface tension measuring device by volume |
| CN200950116Y (en) * | 2006-07-18 | 2007-09-19 | 文景 | Liquid surface tension coefficient measuring instrument |
| CN201946193U (en) * | 2011-01-04 | 2011-08-24 | 孟庆林 | Liquid surface tension coefficient measuring device for chemistry teaching |
Non-Patent Citations (1)
| Title |
|---|
| 宋维才，姚久民: "拉脱法测表面张力系数实验的改进", 《物理实验》, vol. 20, no. 8, 31 August 2000 (2000-08-31), pages 39 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103245594A (en) * | 2013-05-21 | 2013-08-14 | 四川大学 | Device for measuring liquid surface tension by pull-out method |
| CN104849179A (en) * | 2015-06-13 | 2015-08-19 | 山西医科大学 | Automatic leveling device for liquid surface tension coefficient measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120815 |