摘要
纱条细度的周期性不匀，用波谱线就可测得。本文着重对理论波长谱图振幅的公式：根据纺织专业的要求，采用工程数学中的积分变换，进行了严格的推导，并说明了该公式的实际意义。
The periodic irregularity in a yarn can be analyzed by means of the spectrum machine.In this paper,the formula of amplitude:was induced vigorously on the basis of the integrating change accordins to the textile technical requirement,and real meaning of the fomula were pointed out
