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

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。基于直纹曲面的N维递推插值用N个插值比率来描述。插值方程对每一个插值比都是线性的，但所有插值比的阶数都是n。这一理论将应用于人类的感觉系统如下。2)织物手值的测量构造了弹性触摸传感器和光纤须传感器作为织物手值信息的采集手段。当传感器在织物表面扫描时，弹性传感器检测单片织物的回弹性和折叠织物的柔韧性。另一方面，纤维须随着扫描运动而振动。利用位置敏感装置对调制激光发出的光纤尖端的粘滑运动进行光学检测。纤维须收集了大量织物的手值信息，不仅包括表面轮廓和表面摩擦，还包括织物的回弹性和延伸性。传感器输出由对称点图案显示，以区分棉、麻、丝和羊毛。随着纤维状态的变化，需要进一步扩展纤维须阵列，并改进人体感官评价与纤维须测量之间的映射。然后适用直纹曲面插值方法。本文介绍了一种基于空间滤波技术构建的基于薄膜热电阻的空间滤波流量计。窄带通空间滤波流量计通过检测热频率来指示流速。加权二次差分空间滤波流量计检测热脉冲的机械行程时间。给出了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.