文章基本信息

标题：A Piezoelectric Sensor-Based System for Objective Analyzing of the Preparation of Fluid Foods
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作者：Hajime Iwamori ; Ichiro Ashida ; Yozo Miyaoka 等
期刊名称：Journal of Sensor Technology
印刷版ISSN：2161-122X
电子版ISSN：2161-1238
出版年度：2014
卷号：04
期号：03
页码：148-153
DOI：10.4236/jst.2014.43014
语种：English
出版社：Scientific Research Publishing
摘要：A monitoring system using a piezoelectric sensor was developed for the quantitative analysis of the stirring process in which a mixture of a thickener with water was prepared. A thin piezoelectric sensor film was attached to the inside of a glass container in which the mixture was stirred and connected to a recorder. Seven healthy young participants were asked to conduct stirring for 90 s at three cycles per second (3 Hz). A triphasic wave with a large upward peak was recorded in each cycle of stirring. The average period across the seven participants was 0.337 s (n = 613 cycles), and statistical analysis revealed no significant difference between the average value and the expected value of 0.333 s. Video images captured during stirring were analyzed, and the analysis showed that the peak of the large upward wave appeared approximately 0.12 s (approximately 36% of the average period) after the time when the spoon head for stirring passed near the piezoelectric sensor. The monitoring system developed in this study allows the precise temporal analysis of stirring for the preparation of a mixture.
关键词：Thickener; Preparation; Stirring; Piezoelectric Sensor; Monitoring