Study of ruled surface interpolation method for nonlinear multiple dimensional sensing system on human sensory measurement

1)直纹面插值法提出了一种基于标定点的非线性多维传感系统解析逆变换方法。基于直纹面的N维递归插补用N个插补比来描述。该理论将应用于人体感觉系统中。2）织物手感值的测量设计了一种弹性触觉传感器和一种光纤触须传感器作为织物手感值信息的采集手段。当传感器在织物表面上扫描时，弹性传感器检测单个织物片的弹性和折叠织物片的柔性。另一方面，纤维须对扫描运动产生振动。利用位置敏感器件对调制激光发射的光纤针尖的粘滑运动进行光学检测。纤维晶须不仅收集了织物的表面轮廓和摩擦力信息，而且还收集了织物的回弹性和延伸性信息。传感器输出以对称点模式显示，以区分棉、麻、丝、毛。需要进一步的工作来扩展纤维晶须阵列与纤维条件的变化，并改善人类感官评价和纤维晶须测量之间的映射。3）薄膜热阻空间滤波流量计介绍了一种基于空间滤波法的流量计的构造技术。窄带空间滤波流量计通过检测热频率来指示流速。加权二次微分空间滤波流量计检测热脉冲的机械行程时间。这些空间滤波结构的分析结果和实验结果。

1) Ruled surface interpolation methodAn analytical inverse transformation method based on calibration points for nonlinear multiple dimensional sensing system has been proposed. N-dimensional recursive interpolation based on ruled surface is described by N interpolation ratios. Interpolation equation is linear to every interpolation ratio, but the order for all interpolation ratios is N.This theory will be applied to human sensory system as follows.2) Measurement of fabric hand valueAn elastic touch sensor and an optical fiber whisker sensor have been constructed as a means for gathering fabric hand value information. When sensor was scanned over fabric surface, elastic sensor detects the resilience of single fabric sheet and flexibility of fold up fabric sheets. On the other hand fiber whisker vibrates to the scanning motion. The stick slip motion of fiber tip from which modulated laser light emits is detected optically by Positional Sensitive Device. Fiber whisker gathers much fabric hand value information, not only surface contour and surface friction, but also fabric resilience and extensibility. Sensor outputs are displayd by Symmetrized Dot Patterns to distinguish cotton, linen, silk and wool from each other. Further work is required to extend fiber whisker array with fiber condition's variations, and improve the mapping between human sensory evaluation and fiber whisker measurement. Then the ruled surface interpolation method will be applicable.3) Spatial filtering flow-meter with thin film thermal resistorsA technique to construct a flow-meter based on spatial filtering method is described Narrow-band-pass spatial filtering flow-meter indicates the flow velocity by detecting thermal frequency. Weighting quadratic differential spatial filtering flow-meter detects the mechanical travel time of thermal pulse. Analytical results and experimental results for these spatial filtering constructions are shown.