Development of ESPI camera for diagnosis of material degradation

开发用于材料降解诊断的 ESPI 相机

• 批准号: 13555193
• 负责人: TOYOOKA Satoru
• 金额: $ 4.48万
• 依托单位: Saitama University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2001
• 资助国家: 日本
• 起止时间: 2001 至 2003
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-13555193/
• 关键词: Speckle interferometry; Dynamic ESPI; Tensile experiments; Strain localized band; Physical meso-mechanics; Speckle phase; Hilbert transformation; MEMS; 電子スペックル干渉法(DESPI); ヒルベルト変換法による位相解析; 塑性変形の波動的伝播現象; 変形の時空間解析; 植物の変形; ESPI; 位相解析; 塑性変形; ひず

Electronic Speckle Pattern Interferometry (ESPI) is a promising experimental technique whole-field deformation analysis. The technique has been developed to make possible to observe dynamic feature of deformation which we call dynamic ESPI (DESPI). In this report, at first, (1)development of dynamic ESPI (DESPI) for diagnosis of material degradation is present. (2)To evaluate degradation, field theoretical interpretation based on physical meso-mechanics is introduced. It is important to investigate dynamic behavior of plastic deformation process. (3)Newly proposed DESPI makes possible to investigate entire process of whole field deformation. (4)In tensile experiments of aluminum alloy samples and stainless steal samples, we found characteristics strain localization which propagate on the samples. (5)Quantitative analysis of speckle fringes are also presented. (6)A compact DESPI camera was designed and produced and fatigue process were investigated. (7)The proposed method, which is non-contact method, was applied to investigate moving feature of bio-objects such like growing state of a plant. (8)Further more the proposed method was progressed to investigate deformation of microscopic object. Micro-DESPI was applied to diagnose moving feature of MEMS. (9)Finally future expectation will be presented.

电子散斑干涉测量（ESPI）是一种很有前景的全场变形分析实验技术。该技术的开发使得观察变形的动态特征成为可能，我们称之为动态 ESPI (DESPI)。在本报告中，首先介绍了（1）用于材料降解诊断的动态ESPI（DESPI）的开发。 (2)为了评估退化，引入了基于物理细观力学的场理论解释。研究塑性变形过程的动态行为具有重要意义。 (3)新提出的DESPI使得研究全场变形的整个过程成为可能。 (4)在铝合金样品和不锈钢样品的拉伸实验中，我们发现了在样品上传播的特征应变局域化。 (5)还给出了散斑条纹的定量分析。 (6)设计制作了紧凑型DESPI相机并研究了疲劳过程。 (7)所提出的方法是非接触方法，用于研究生物对象的运动特征，例如植物的生长状态。 (8)进一步将所提出的方法发展到研究微观物体的变形。 Micro-DESPI用于诊断MEMS的运动特性。 (9)最后提出未来的期望。

项目成果

V.Madjarova, S.Toyooka, H.Nagasawa, H.Kadono: "Dynamic out-of-plane ESPI for quantitative evalusation of displacement field of flowers"Proc.of Asian Symposium on Biomedical Optics and Photonics. 266-267 (2003)

V.Madjarova、S.Toyooka、H.Nagasawa、H.Kadono：“动态平面外 ESPI 用于定量评估花的位移场”亚洲生物医学光学和光子学研讨会论文集。

M.Tominaga, H.Taniyama, S.Toyooka: "Dynamic DSPI Observation of Non-uniform Deformation in Tensile Experiments on SUS304 Austenitie Stainless"Proc.APCFS & ATEM'01. 821-825 (2001)

M.Tominaga、H.Taniyama、S.Toyooka：“SUS304 奥氏体不锈钢拉伸实验中不均匀变形的动态 DSPI 观察”Proc.APCFS

V.Madjarova, S.Toyooka, H.Nagasawa, H.Kadono: "Blooming Processes in Flowers Studied By Dynamic ESPI (DESPI)"Optical Review. 10. 370-374 (2003)

V.Madjarova、S.Toyooka、H.Nagasawa、H.Kadono：“动态 ESPI (DESPI) 研究的花朵开花过程”光学评论。

V.Madjarova, H.Kadono, S.Toyooka: "Dynamic electronic speckle pattern interferometry (DESPI) phase analyses with temporal Hilbert transform"Optics Express. 11-6. 617-623 (2003)

V.Madjarova、H.Kadono、S.Toyooka：“利用时间希尔伯特变换进行动态电子散斑干涉测量 (DESPI) 相位分析”Optics Express。

V.Madjarova, S.Toyooka, R.Widiastuti, H.Kadono: "Dynamic electronic speckle pattern interferometry (DESPI) phase analyses with temporal Hilbert transformation"Optics Express. 11-6. 617-623 (2003)

V.Madjarova、S.Toyooka、R.Widiastuti、H.Kadono：“动态电子散斑干涉测量 (DESPI) 相位分析与时间希尔伯特变换”Optics Express。