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Functional polymer membrane conductivity testing methods


For. Ds can also be used within a computer or local area network between multiple applications in data exchange. Ds library contains the Open, read, writedoes and other functions,[link widoczny dla zalogowanych], DS technology in the C language, VB, and I_abVIEW other development environments. Each test point in the network as a test of different test tasks, in order to reduce duplication, share resources through the network. Should also reduce the server and data transmission in each node to improve network performance. Therefore, all nodes and servers and between the nodes to work together is very important. In the design based on Client / Server model for distributed computing, distributed processing system to resolve server and each node of data transfer. C / S model is an open collaborative processing model, which the system is divided into relatively independent modules,[link widoczny dla zalogowanych], assigned to individual computers, each computer to perform different functions, C / S mode to ensure data in the server room and machines , reliable transmission between clients. Based. C / S mode, the system functions compete solution to each node, each node organic complexes, in their own end-users can be observed on the data obtained from the server and processing the results. 5 Conclusion computer technology and virtual instrument technology development and integration, to further broaden the application of virtual instruments, so that the virtual instrument in test automation, test and other aspects of teaching a wide range of applications. Virtual Instrument and computer network equipment by combining the distance teaching, the teaching of design principles for visual experiments and demonstrations,[link widoczny dla zalogowanych], students learn through the network equipment,[link widoczny dla zalogowanych], operating equipment, improve the teaching effect, but also to the demands of building a university laboratory . Virtual Instrument in cost, flexibility and user of such areas have incomparable advantages of traditional instruments, it is the field of electronic test equipment development and emerging technologies, will be in more areas of broader application and popularization. References 1 NI companies with the U.S., Wang Minsheng and other translations. LabVIEW based tutorial. Superstar books. 2O02 edition on January 1 of the other two easily. Virtual instrument design and implementation. Xidian University. 20o2.33 Junhua and so on. Virtual Instruments graphical programming language Labvi ~ tutorial. Xidian University. 2O02,[link widoczny dla zalogowanych], 5 <<<<<<<\;\;<<'<<\<<<<<<<<<<<<<<<<<\conductivity of the membrane plane. The four-probe method, the test process is quite complicated and need to use the precious metal lines, increasing the cost of test. In the four-probe method, only one film a test, procedure cumbersome, time-consuming. 2) From the test results, two methods are the results obtained. With the literature values are close to, or less, can achieve the requirements of the test film. 3) parallel to the four-electrode method compared with the four-probe method, its limitations must be measured is the film thickness. Particularly for optical thin film, * 52 * thickness measurement is a more complicated process, but in most of the optical properties of the membrane, the film thickness is essential parameters, film thickness determination process essential Therefore, parallel to the four electrode method no additional workload. Parallel four-electrode conductivity measurement of polymer film is simple, wide application, which is the determination of ultra-thin flat electrical conductivity of great significance. References 1 Ma Jian standard. Functional polymer. Chemical Industry Press, 20OO2 Wang treasury, CHEN. Materials Science and Engineering. 20O2, 19 (1) 3 Wu Hong, Yu-Xin Wang, Shi-Chang Wang. Polymer Materials Science and Engineering. 2001,17 (4)

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