一、前言现代技术水平的市售毛细管粘度计采用光纤传感器测量流动时间,绝对准确度可达±0.01s。由于这一计时准确度的限制,通常的做法是先对粘度作为浓度函数进行测量,然后将比浓粘度外推到浓度为零,再求特性粘度(尽管有文献报道流动时间的准确度实际上高于±0.01s)。通过增加取值的点数、增长测 First, the foreword The modern technology level of the market capillary viscometer using optical fiber sensor to measure the flow of time, the absolute accuracy of up to ± 0.01s. Because of this timing accuracy, it is common practice to first measure the viscosity as a function of concentration and extrapolate the reduced viscosity to a concentration of zero before finding the intrinsic viscosity (although the accuracy of the reported flow time is actually reported Higher than ± 0.01s). Increase the value by increasing the number of points