The invention is a method and device for measuring
fiber compression flexural performance, refers to the measurement for cotton, fur, silk, hemp and chemical
fiber, and other high performance
fiber or
fiber type material. The invention includes a force-shift measuring mechanism made up of high precision micro
force sensor, multifunctional upper grip holder and the subjacent holder which can move in parallel and vertically, it can acquire the head end stress of fiber and fiber
axial deformation data and simulate the puncture effect of
human skin. The invention uses optical
system to realize the synchronization, changes the deformation under pressure of fiber axial into
digital image to be processed, acquires the fiber
fineness, holding length, flexibility and curvature of each point and shift, and controls the measured parameter through the computer real-time collected data, measures the real-
time pressure, flexibility, fiber bending shape and so on deformation curve and relative character parameter through
theory model and
algorithm software. It especially applies to axial compressing and bending performance measurement of convex fiber with
diameter of 5-200ª–m and length of 1-25mm, and the stretching measurement of fiber with length of 0-150mm.