Method for manufacturing electrodes with small electrode constants

A manufacturing method and technology of small electrodes, which are applied in manufacturing measuring instruments, measuring resistance/reactance/impedance, measuring electrical variables, etc., can solve the problem of less sample usage, increase response value, reduce error, and facilitate transmission hot effect

Active Publication Date: 2015-01-14
PETROCHINA CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the process of scientific research, electrodes with small cell constants and less sample usage have not been seen yet.

Method used

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  • Method for manufacturing electrodes with small electrode constants
  • Method for manufacturing electrodes with small electrode constants
  • Method for manufacturing electrodes with small electrode constants

Examples

Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1: as figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 as shown,

[0022] On the edge of the cylindrical plate of the electrode, there are three small round holes with a diameter of about 1 mm, so that when the electrode is immersed in the solution, the gas between the two plates can flow out, otherwise, the existence of the gas will bring problems to the experiment. Large error; special design is made for the PTFE base to fix the cylindrical plate of the inner plate, so that the length of the inner plate is smaller than that of the outer plate, so that the inner electrode plate can be completely covered by the solution during the measurement process. Soaking; therefore, when the solution volume expands or contracts due to temperature changes during the measurement process, the corresponding area between the inner and outer electrode plates remains unchanged; a groove is made on the top of the inner electrode. The phenomenon of capillary rise occu...

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PUM

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Abstract

The invention belongs to the technical field of supporting facilities of electrical measurement devices, and provides a method for manufacturing electrodes with small electrode constants. Teflon is adopted by an electrode fixing material capacitance pool pole plate support and a sample pool in a capacitance pool body; a teflon base of the capacitance pool pole plate support enables the length of an inner electrode pole plate to be smaller than that of an outer electrode pole plate, and therefore the base and the cylindrical outer electrode pole plate also form a part of electrodes, in the measuring process, the inner electrode pole plate can be completely soaked in solution, and when the solution is affected by temperature changing to expand or contract in the measuring process, the corresponding area between the inner electrode pole plate and the outer electrode pole plate is not changed; three small round holes with the diameters being about 1 mm are formed in the upper edge of the cylindrical outer electrode pole plate, so that gas between the two pole plates conveniently flows out when the electrodes are soaked in the solution, and experiment errors caused by gas are reduced. The electrodes manufactured through the method are small in electrode constant, convenient to operate and use, small in error and suitable for measuring the conductivity, capacitance and dielectric constants of a heavy oil system.

Description

technical field [0001] The invention relates to a method for manufacturing an electrode with a small electrode constant, and belongs to the technical field of supporting facilities for electrical measuring devices. Background technique [0002] Heavy oil is a colloidal system with asphaltene as the core. Asphaltene is easy to coagulate out of the heavy oil system due to its strong polarity, which has brought many adverse effects on the production, storage, transportation, and processing of heavy oil. It is of great significance to study the polarity of such components. [0003] As an oil system, the electrical response of heavy oil asphaltene, such as electrical conductivity and dielectric constant, is relatively small, so it is difficult to accurately measure its electrical properties. In order to obtain better measurement results, it is often necessary to use a small cell constant electrode with a large surface area and small spacing to improve the response value of the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R3/00G01R27/26G01R27/22
Inventor 张龙力赵愉生杨朝合杨国华赵元生赵瑞玉于双林
Owner PETROCHINA CO LTD
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