论文部分内容阅读
引言 截面积是测定纤维及细丝拉伸强度、杨氏模量和电阻率等性能所必须的几何参数,但纤维、细丝,尤其不规则截面的纤维、细丝的截面积测量比较困难。 纤维、细丝表观直径和截面积的测量方法,一般用显微镜测量法、激光衍射法和共振法,国内有的单位建立了共振法,但所用一套激发和接收共振的装置较复杂。本文叙述一种简单的共振法测试装置,既可测碳纤维、细
Introduction The cross-sectional area is the geometric parameter necessary to determine the properties such as tensile strength, Young’s modulus and resistivity of fibers and filaments. However, it is difficult to measure the cross-sectional area of fibers, filaments, especially irregular cross-section fibers and filaments. Fiber, filament apparent diameter and cross-sectional area of the measurement method, the general microscopic measurement, laser diffraction and resonance method, some domestic units to establish the resonance method, but the use of a set of excitation and receive the resonance device is more complicated. This article describes a simple resonant method test device that can measure carbon fiber, fine