振动式片针组合表面粗糙度触觉再现研究  

Surface Roughness Representation Using Combined-Type Vibrotactile Display with Fin Actuator Array and Pin Actuator Array

作　　者：李朝东[1] 武素星[1] 

机构地区：[1]上海大学上海市机械自动化及机器人重点实验室,上海200072

出　　处：《振动．测试与诊断》2013年第5期845-850,914-915,共6页Journal of Vibration,Measurement & Diagnosis

基　　金：国家自然科学基金资助项目(50675127)

摘　　要：振动式片针组合触觉显示器是在切向和法向上分别对片阵和针阵施加非耦合的压电和电磁激振驱动,使振子振动的方位、振幅、频率都可以组合和控制,从而实现多种表面纹理触摸感的再现。笔者利用该触觉显示器开展了表面粗糙度的再现研究,引入不同阶灰度色彩的原理,横向振动采用片阵激发光滑触感,纵向振动采用针阵激发粗糙触感,并交织在一起同时刺激指尖皮肤,产生某种特定粗糙度触感。机械量测试和人心理实验结果都证实了这种片阵针阵组合振动激发对于不同粗糙度纹理再现是有效的。A combined-type vibrotactile displayed with a horizontal fin actuator array and a vertical pin actuator array is stimulated.The former uses piezoelectric element to stimulate transverse vibration and the latter uses electromagnetic vibration exciter to stimulate longitudinal vibration,respectively.These two stimulation methods are uncoupled.This display can realize the representation of touch sense of various surface textures through the combination and control of vibration direction,amplitude and frequency of the vibrators.Surface roughness representation is researched by using this display,and the theory of grey color theory is introduced.The transverse vibration in the fin array is applied to stimulate the sense of smooth,and the longitudinal vibration in the pin array is used to stimulate the sense of roughness.These two types of vibration are interweaved together to produce some specific tactile sensations of surface roughness.The mechanical parameters quantification experiment test and the mental experiment both verify that this combination of various vibration modes of slices and needles is effective to the representation of various roughness textures.

关 键 词：触觉显示器 振动触觉 压电致动器 电磁激振器 表面粗糙度 

分 类 号：TP242.6[自动化与计算机技术—检测技术与自动化装置]