纺织学报 ›› 2017, Vol. 38 ›› Issue (06): 106-110.doi: 10.13475/j.fzxb.20160703306

• 机械与器材 • 上一篇    下一篇

基于电容传感器的醋酸纤维含油率检测

  

  • 收稿日期:2016-07-13 修回日期:2017-02-21 出版日期:2017-06-15 发布日期:2017-06-16

Testing of oil content of cellulose acetate fibers using capacitance sensor

  • Received:2016-07-13 Revised:2017-02-21 Online:2017-06-15 Published:2017-06-16

摘要:

为低成本在线检测醋酸纤维含油率,设计了醋酸纤维含油率在线测试实验装置,利用2个电容传感器(0号传感器和1号传感器)分别检测上油前后的醋酸纤维丝束,再根据2个传感器的输出电压差值计算纤维含油率。试验分2进行:第1步为标定传感器;第2步为通过改变上油辊的转速改变醋酸纤维丝束所含的乳液量,并测试传感器输出电压的变化。结果表明:电容传感器的输出电压与无油纤维丝束的线密度成正比;对于一定浓度的乳液,1号电容传感器的输出电压与丝束携带的乳液量正相关。建立了含油率与2个电容传感器输出电压之间的二次函数关系式,应用该式估算的醋酸纤维含油率与烘干称重法得到的纤维含油率之差小于5.2%。

关键词: 醋酸纤维, 含油率, 电容传感器, 在线检测

Abstract:

A low-cost testing apparatus used for testing the oil content of cellulose acetate fibers online was designed. Cellulose acetate fibers before and after oiling were tested, respectively, using two capacitance sensors (NO.0 sensors and NO.1 sensors). Then the oil content of fibers was calculated according to the voltages difference of two sensors. The test was divided into two phases: firstly calibrated the sensors; changed the revolving speed of the oiling roller to change the content of emulsion on cellulose acetate fibers, then measured the change of the output voltage of the sensors. The results show that a significant linear correlation esists between the output voltage of the cacitance sensors and the linear density of oilless fibers. For the emulsion of a certain concentration, the output voltage of the NO.1 sensor is positively correlated with the emusion volume on the fibers. Aquadratic function about the oil content and the output voltage was established. The differences between the oil content calculated using the function and that calculated using oven drying method are less than 5.2%.

Key words: cellulose acetate fiber, oil content, capacitance sensor, online test

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