Nondestructive Internal Defect Detection of Agricultural Products Using Ultrasonic Secondary Wave

利用超声波二次波无损检测农产品内部缺陷

• 批准号: 01560269
• 负责人: TANAKA Shun'ichiro
• 金额: $ 0.96万
• 依托单位: Kagoshima University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1990
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-01560269/
• 关键词: Nondestructive detection; Internal defects; Quality; Ultrasonic; Japanese Radish; Watermelon; Kiwi fruit; キゥイフル-ツ

The purpose of present work is to establish the fundamentals of a method of nondestructive defect detection of various agricultural products using ultrasonic secondary wave.It was experimented on the internal defect of Japanese radish (longish common type), Japanese radish (cv. Sakurajima) and watermelon, and on the quality of kiwi fruits. Results obtained wave as follows :(1) The amplitude of waveform with the axis of time for a pithiness of common type radish was smaller than that of a normal radish without pithiness, and there were some differences in power spectra of the both. As a result of above mentioned, it was able to evaluate a pithiness of Japanese radish.(2) It was able to evaluate a pithiness of cv. Sakurajima as well as common type radish.(3) In case of watermelon, the amplitude of waveform with the axis of time for a sample with defects was smaller than that of a normal sample, and it was able to evaluate by means of the standard of distinction. The optimum frequency to detect internal defects of watermelon was 2 kHz.(5) There were some correlation between the largest amplitude of waveform with the axis of time and hardness of kiwi fruit.

本工作的目的是建立一种利用超声波二次波对各种农产品进行无损缺陷检测的方法的基础。对日本萝卜（长普通型）、日本萝卜（cv. Sakurajima）和西瓜的内部缺陷以及猕猴桃的品质进行了实验。得到的波形结果如下：(1)普通型萝卜的以时间为轴的波形幅度小于普通型无髓萝卜，且两者的功率谱存在一定差异。根据上述结果，能够评价萝卜的髓质。 (2)能够评价cv.萝卜的髓质。 (3)在西瓜的情况下，有缺陷的样品的随时间轴的波形的幅度比正常样品小，并且能够通过区分标准来评价。检测西瓜内部缺陷的最佳频率为2 kHz。(5)波形最大振幅与时间轴和猕​​猴桃硬度之间存在一定的相关性。

项目成果

TANAKA Shun'ichiro, MORITA Kazuo, MINAMI Tadashi: "Nondestructive Quality Detection of Agricultural Products Using Ultrasonic Secondary Wave" IECE Technical Report. Vol. 89, No. 155. 17-22 (1989)

TANAKA Shunichiro、MORITA Kazuo、MINAMI Tadashi：“利用超声波二次波对农产品进行无损质量检测”IECE 技术报告。

田中 俊一郎: "横波超音波を利用した農産物の内部欠陥非破壊検査法" 超音波テクノ. 2. 74-78 (1990)

田中俊一郎：“利用横向超声波对农产品内部缺陷进行无损检测的方法”超声波技术2. 74-78 (1990)。

田中俊一郎,守田和夫,南忠司: "横波超音波を利用した農産物の内部品質非破壊判定法" 電子情報通信学会 超音波部会研究会誌. US89-18. 17-22 (1989)

Shunichiro Tanaka、Kazuo Morita、Tadashi Minami：“使用横向超声波确定农产品内部质量的非破坏性方法”IEICE 超声波小组委员会期刊 US89-18 (1989)。

田中 俊一郎,守田 和夫,南 忠司: "横波超音波を利用した農産物の内部品質欠陥非破壊判定法" 電子情報通信学会 超音波研究部会誌. US89ー18. 17-22 (1989)

Shunichiro Tanaka、Kazuo Morita、Tadashi Minami：“利用横向超声无损测定农产品内部质量缺陷的方法”电子信息通信工程师学会超声研究组杂志 US89-18。 (1989)

田中俊一郎: "横波超音波による青果物内部欠陥非破壊検査法" ニュ-フォ-カスセミナ-テキスト 食品における非破壊検査システムの現状と展望. 53-96 (1989)

Shunichiro Tanaka：“使用横波超声波对水果和蔬菜内部缺陷进行无损检测的方法”新焦点研讨会文本食品无损检测系统的现状和前景53-96（1989）。