| Along with the rapid development of MEMS, more and more micro devices and micro system began to step into the practical level. Microscale fiber materials have been widely used due to some special natures such as light soft, corrosion resistance, high temperature resistant, long service life and high strength etc. Fiber materials show strong ’scale effect’under the circumstance that their sizes is developing into the micro/nano scale. The mechanical property parameters of these materials cannot be got from directly referencing the classical data of macroscopic materials. However, the basic mechanical property parameters of fiber materials are essential to improving the reliability of micro devices’construction design and estimating the lifetime of the devices. Therefore, the fiber materials’mechanical property parameters collection and analysis system which is designed based on micro tensile method is of great importance.In this article, a mechanical property parameters test method and system device for fiber materials in micro tensile effect is designed by using a optical non-contact measuring method based on LabVIEW virtual instrument development platform. The force-deformation curves of fiber materials in micro tensile effect are measured automatically, accurately and in real time, to obtain the values of fiber materials’ mechanical property parameters. This system device mainly consists of micro force sensor, laser displacement sensor, actuator, jig, mechanized platform and software for automatic control, data acquisition and analysis. This device has the characteristics of wide range, high sensitivity, high accuracy, high stability and robust anti-jamming.This article develops a measure and control software with a user-friend interface by using virtual instrument technology, and this software has been used in fiber materials’ micro tensile experiment successfully. At the same time, the reliability of this test system has been proved by precision analysis and data processing. |
PDF Full Text Request