徐姗姗　阎玉秀

摘 要：为了探究织物手感和手指振动信号之间的关系，对手指滑动触摸织物所产生的手指振动信号进行测试，并采用因子分析的方法提取特征量。然后对振动信号特征量和织物手感评价因子进行了相关性分析。通过研究得到能够代表手指触摸织物所受到的振动刺激有6个特征量。特征量与手感评价因子的相关性为：舒适感、柔软感和光滑感与手指经向触摸织物时在80～500 Hz频段内的振动强度呈强负相关;舒适感和柔软感与手指纬向触摸织物时在90～300 Hz频段内的振动强度呈中度负相关。客观的手指振动信息可与主观评价统一起来应用于研究织物手感，为织物手感评价的准确性提供了一个客观手段。

关键词：手指振动;信号特征值;主观评价;手感;相关性

中图分类号：TB383  文献标志码：A

文章编号：1009-265X（2021）05-0088-07

Study on the Correlation Between the Fabric Feel and Vibration Signals of Fingers

XU Shanshan， YAN Yuxiu

（College of Fashion Design & Engineering， Zhejiang Sci-Tech University， Hangzhou 310018， China）

Abstract： In order to explore the relationship between the fabric feel and vibration signals of fingers， vibration signals produced by fingers sliding and touching fabrics were tested and the characteristic quantities were extracted by means of factor analysis. The relationship between the characteristic quantities of vibration signals and the evaluation factor of fabric feel was analyzed by correlation analysis. Through research， there were 6 characteristic quantities which can represent the vibration stimulation that the fingers were subject to when touching the fabric. The correlation between characteristic quantities and the evaluation factor of hand feel was： comfort， softness and smoothness were strongly negatively correlated with the vibration intensity in the frequency band of 80-500 Hz when the finger touched the fabric warp-wise; comfort and softness were significantly negatively correlated with the vibration intensity in the frequency band of 90-300 Hz when the finger touched the fabric weft-wise. Objective finger vibration information can be unified with the subjective evaluation to study the fabric feel， which can provide an objective means to evaluate fabric feel accurately.

Key words：finger vibration; signal eigenvalues; subjective evaluation; hand feel; correlation

皮膚震动是评价物体的触觉信息（如粗糙度和纹理）的重要参数之一[1]。为了评估和识别纹理，开发出了类人触觉传感器和触觉传感系统[2-4]。Kikuuwe等[5]把PVDF压电薄膜传感器固定在指尖的指甲表面，记录手指滑过面料组织结构或表面磨损程度不同的机织物表面所产生的以电压表示的震动信号，发现震动信号的FFT（Fast fourier transformation）分量可辨别出这些织物。Tanaka等开发出一套PVDF压电薄膜传感器系统，用于模拟人触摸感的评测，可记录传感器触头滑过织物表面时摩擦震动激发的电压信号，发现电压信号在时域的平均方差和在中、高频带范围内的功率谱密度能表征织物的不同触觉质感[6-8]。……