摘要
针对厚皮水果内部品质检测存在的问题,采用基本水果中密度与含糖量的函数关系,以质量和体积关系检测水果密度,结合偏最小二乘法对水果密度和含糖度进行曲线拟合得出水果含糖量,进而研制了一种以单片机为控制核心的厚皮水果糖度无损检测装置。实验(以蜜柚为例)表明,蜜柚的密度和含糖量相关系数高达0.9846,因此利用蜜柚密度来检测蜜柚的含糖量具有可行性。
Abstract
Aiming at the problems existing in the detection of internal quality of thick skin fruit , using functional relationship between density and sugar content in fruit, the fruit density was detected with relationship between quality and volume.Combining with least square method, fruit sugar content was obtained through curve fitting , a nondestructive testing device of thick skin fruit was designed with single chip microcomputer as the control core.The experiment showed that the correlation coefficient of density and sugar content of honey pomelo was up to 0.984 6, using density to detect sugar content in honey pomelo is feasible .
基金项目
福建省科技重大专项(2014NZ0002-1)
福建省高水平大学建设重点项目(612014017)