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Surface tension tester and method

A surface tension and tester technology, used in scientific research institutions and university laboratories, can solve problems such as the difficulty of controlling the single largest bubble in the capillary, affecting the test speed and work efficiency, and the troublesome pressure reading of the manometer, so as to improve the test speed and Work efficiency, reading pressure is convenient and accurate, easy to grasp the effect

Inactive Publication Date: 2009-03-25
JIANGSU KEDI PETROLEUM INSTR
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Problems solved by technology

[0002] Due to the inability of the old-fashioned instruments to maintain a constant temperature, the error in the test results is large. The reading pressure of the graduated "U" shaped manometer is troublesome and not accurate enough. It is difficult to adjust the tangency between the tip of the capillary and the liquid surface to be tested. A series of problems have affected the test speed and work efficiency, and greatly affected the accuracy of the test results

Method used

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Embodiment Construction

[0024] A preferred embodiment of the present invention is described in detail with reference to the accompanying drawings as follows:

[0025] See figure 2 , The surface tension tester includes a liquid measuring container 2 for storing the solution to be tested 1, a capillary tube 4 with the tip tangent to the liquid surface to be tested, a decompression device 11, and a capillary tube 4 vertically inserted into the liquid measuring device 2 The rubber tube 5 is connected to the pressure gauge 7 of the liquid measuring container 2 and the pressure reducing device 11, and the liquid measuring container 2 is equipped with a thermostat.

[0026] The structure of the thermostatic device is: the liquid measuring container 2 is used as an inner tube, and an outer tube 13 is sheathed. The outer tube 13 is filled with circulating water 17, and the upper part of the outer tube 13 has a water outlet connected to a water inlet 16 of a constant temperature water tank 14. The lower part of th...

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Abstract

The invention relates to a surface tension tester and a surface tension test method. The tester comprises a measured solution container for holding a solution to be tested, a capillary tube which is vertically inserted into the measured solution container and the tip of which is tangent with the liquid level to be tested, a decompressor, and a pressure gauge which is communicated with the measured solution container and the decompressor through rubber tubes, wherein the measured solution container is provided with a constant-temperature device. The method adopts the surface tension tester for testing. The tester has a reasonable structure, is convenient to operate, can improve the accuracy of the test result and improve the test speed and the work efficiency, and is suitable for scientific research institutions and laboratories of colleges and universities.

Description

Technical field [0001] The invention relates to a surface tension tester and method for measuring the surface tension of a solution by a maximum bubble pressure method, which is applied to scientific research institutions and university laboratories. Background technique [0002] Due to the inability of the old-fashioned instrument to maintain a constant temperature, the test results have a large error. The graduated "U"-shaped pressure gauge is troublesome and not accurate enough. It is difficult to adjust the tip of the capillary tube and the liquid level to be measured. A series of problems affected the test speed and work efficiency, and also greatly affected the accuracy of the test results. Summary of the invention [0003] The purpose of the present invention is to provide a surface tension tester and method aiming at the defects existing in the prior art, to improve the accuracy of the test, and to increase the test speed and work efficiency. [0004] In order to achieve...

Claims

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Application Information

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IPC IPC(8): G01N13/02
Inventor 张小平
Owner JIANGSU KEDI PETROLEUM INSTR
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