A kind of electrical performance test device and test method of magnetic assembly of micro-nano particles
An electrical performance testing, micro-nano particle technology, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve the problem of inability to measure micro-nano particles, achieve the effect of economical testing process, reduce material waste, and reduce testing costs
Active Publication Date: 2018-12-18
SHANTOU UNIV
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Problems solved by technology
[0003] The purpose of the present invention is to provide a kind of electrical performance testing device and testing method of micro-nano particle magnetic assembly, conduct electrical performance test through the mixture of micro-nano conductive particles and temperature-sensitive insulating magnetic fluid, and use magnetic field to realize micro-nano conductive particles At the same time, the magnetic fluid has good sealing and heat dissipation functions, which greatly improves the accuracy, stability and reliability of the micro-nano particle material test, and solves the problem that the existing single and small amount of micro-nano particle electrical measurement cannot be measured The problem
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[0029] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0030] The overall structure of the device of the present invention is as figure 1 , figure 2 As shown, the internal structure is as image 3 shown. The device of the present invention comprises a base 1 , an insulating magnetic fluid mixture 2 , two conductive plates 3 , two adjustable baffles 4 and an adjustable electromagnetic coil 5 . The base 1 includes a base plate 11, a bracket 12, a guide rod 13 and a double-ended threaded rod 14, the bracket 12 is arranged on the base plate 11, the guide rod 13 and the double-ended threaded rod 14 pass through two adjustable baffles 4 and are arranged on the bracket 12 on. The insulating magnetic fluid mixture 2 is arranged between two conductive plates 3 . The two conductive plates 3 can be made of pure copper conductive plates, which are respectively arranged on the two adjustable baffles 4 and facing e...
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The present invention relates to an electric performance test device of a micro-nano particle magnetic assembly and a test method thereof. The test device comprises a pedestal, insulation magnetofluid mixed liquor, two current-conducting plates, two adjustable baffle plates and an adjustable solenoid. The test method comprises: selecting an insulation magnetofluid; mixing the micro-nano conductive particles into the insulation magnetofluid; dropping the insulation magnetofluid mixed liquor on a glass slide and adding a coverslip, measuring the length of a self-assembled line through a microscope; adjusting the distance between the adjustable baffle plates and the size of a magnetic field; and dropping the insulation magnetofluid mixed liquor into the middle portion of the adjustable baffle plates, and covering the current-conducting plates to measure the electric performance of the micro-nano conductive particles after magnetic assembly. The electric performance test device of micro-nano particle magnetic assembly and the test method thereof are compact in structure and short in waiting time, facilitate multiple tests, and only need a trace of particle solution or suspension liquid to perform electric performance measurement of the micro-nano conductive particles so as to reduce the material waste, greatly reduce the test cost and facilitate the development of the new materials and the electric performance test.
Description
technical field [0001] The invention relates to the field of high-precision electrical performance testing, in particular to an electrical performance testing device and a testing method for magnetic assembly of micro-nano particles. Background technique [0002] At present, the basic theoretical research of nanotechnology and the development of new materials and other applied research have been developed rapidly, and have been widely used in traditional materials, medical equipment, electronic equipment, coatings and other industries. In terms of industrial development, except for the initial scale production of nano-powder materials in a few countries such as the United States, Japan, and China, products such as nano-biological materials, nano-electronic device materials, and nano-medicine diagnostic materials are still in the development stage. In the current application of nanoelectronic device materials, many tests of electrical properties are often tests for finished p...
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IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 牛小东李翔陈木凤李游李桥忠
Owner SHANTOU UNIV