【摘要】 通过密度法和自行研制的水心病检测仪器对苹果样品进行检测 ,结果表明 :密度无法分离该样品水心病 ;而 1～ 4级水心病的透光强度之间存在显著差异 ,可以进行水心病判断。把近红外 810 nm的计算透光强度2 5 0 0 0作为界限值可以将好果 (1级 )与 3、4级果完全分离 ,2级果有 2 9%分离更多还原

【Abstract】 The two methods for nondestructive detection of apple watercore in “Xiushui Guoguang” were investigated. The first method detects apple watercore by its density;and the second by measuring the intensity of apple transparency by a self developed instrument. The detecting results indicate that the self made instrument can classify apple watercores clearly by their distinct difference among the four classes of watercore apples. We defined the transparency intensity 25 000 in 810 nm as a threshold value to classify watercore apples,by which all the first class apples could be classified from those of the class 3 and 4,and 29% from the class 2.更多还原