Construction of method of distinguishing smell using color change and development of optical fiber sensor system

本研究利用染料分子的溶剂极性引起的颜色变化来开发气味传感器。将着色物质铺在光纤上，利用光强的变化研制了一种简单的装置。同时对中试机进行了改进，提高了灵敏度，并对标准气味进行了响应和多变量分析。利用茜素黄、酚酞两种着色剂和酒精的气味元素及标准气味等进行了实验。人们认为，变化的数量和反应的模式的差异是由气味元素明确的。为了在数值上表达和比较这种差异，对多变量分析进行了主成分分析。

The present study develops the smell sensor by using the color change by the solvent polarity of the dye molecule. The coloring matter was spread on the optical fiber and a simple device was developed by the change in the light intensity. Moreover, the pilot machine was improved at the same time for the improvement of sensitivity, and the response and the multivariate analysis in a standard smell were done. It experimented by using the smell elements of two kinds of coloring matters (Alizarin Yellow, Phenol Pthalein) and alcohol and standard smells, etc. It was thought that the difference of the pattern of the amount of the change and the response was clear by the smell element. To express numerically and to compare this difference, the principal component analysis on the multivariate analysis was done.