Study on High Precision Fabric Density Measuring Instrument and Measuring Method Based on Moire Fringe

With the continuous development of science and progress reform fabric knitting technology, all kinds fabrics continue to appear. Linear density is one most important physical geometric characteristics knitted fabrics, which affects mechanical properties, feel style textiles, bases for design manufacturing process parameters.In this paper, a device method developed, not affected by width lines, can accurately measure fabric. The invention puts forward measuring from new point view. Using phenomenon moire fringes, be measured calculated angle. has advantages simple structure, low production cost, cloth lines. it with high line or wide precision convenient operation. gratings different grating constants selected according fabric, very range application.