Application of Non-Destructive Portable Firmness Tester to Pears
Application of Non-Destructive Portable Firmness Tester to Pears
复制标题
无损便携式硬度计在梨上的应用
DOI：
10.3136/fstr.7.161
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发表时间：
2001
影响因子：
0.6
通讯作者：
J. Sugiyama
中科院分区：
文献类型：
--
作者：
J. Sugiyama
对原用于甜瓜的硬度测定仪进行了改进，使之适用于梨的成熟度测定。提高了采样频率以测量梨，并改进了数据采集程序的用户界面。此外，两个麦克风和一个稳定杆被布置成一个三脚架，用于在水果的弯曲表面上进行稳定的测量。对96个法国梨和85个乐捷梨进行了传递速度、破坏硬度测定和感官评价。从两个声学信号的互相关计算的传输速度显示出高水平的相关性（R0.94）与破坏性试验中测得的表观弹性。硬度测定仪可用于梨成熟过程中的生理变化监测。
The firmness tester originally developed for melons was improved to measure the ripeness of pears. Sampling frequency was increased to measure pears and user interface on a data acquisition program was also improved. In addition, two microphones and a stabilizer rod were arranged to form a tripod for stable measurement on the curved surface of the fruit. The transmission velocity, destructive firmness measurement and sensory evaluation were carried out for 96 La France pears and 85 Le Lectier pears. The transmission velocity calculated from the cross correlation of two acoustic signals showed a high level of correlation (R0.94) with apparent elasticity measured in destructive tests. Measurements with the firmness tester could be used to monitor physiological changes in ripening pears.