Developmental Research of TV Camera for Non-contact and Real-time Measurement of Strain Distribution

非接触式实时测量应变分布电视摄像机的发展研究

• 批准号: 62850023
• 负责人: MORIMOTO Yoshiharu
• 金额: $ 3.01万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1987
• 资助国家: 日本
• 起止时间: 1987 至 1988
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-62850023/
• 关键词: Strain Measurement; Image Processing; Non-contact Measurement; Non-destructive Measurement; Scanning Moire Method; Moire Method; Shift Method; モアレ法; ホログラフィ干渉法

A TV camera system for non-contact and real-time measurement of displacement and strain distributions was developed. 1. In order to analyze the image obtained by taking a specimen with a grating on its surface by the system. a scanning moire method and a shift method were utilized. The theory of the measurement was established. 2. The hardware for performing the theory was made. The moire method. the shift method and the scanning moire method are easily selected by chosing one of menus on a personal computer. 3. A camera adapter which shows the same effect as a moire method using Hadamard transform was made. Clearer images were obtained. 4. A wide-use image processing program PIMPOM was developed. 5. Rubber grating sheets with adhesive and a rubber stamp of a grating were made. 6. The effectiveness of the system was confirmed by analyses to a simulation image. 7. Displacement and strain distributions in rubber plates were measured by the system. 8. By adopting the system to holographic images with carrier patterns, small-displacement distributions were analyzed. We will perform still more applications. Moreover. we will combine the system with a high speed video camera. We hope to send this system on the marker for public use.

研制了一种用于非接触实时测量位移和应变分布的电视摄像系统。1.为了分析该系统拍摄表面带有光栅的试样所获得的图像。利用扫描莫尔法和移位法。建立了测量理论。2.完成了实现该理论的硬件。Moire方法通过选择个人计算机上的菜单之一来容易地选择移位方法和扫描莫尔条纹方法。3.一个相机适配器，显示相同的效果作为一个莫尔法使用阿达玛变换。获得了更清晰的图像。4.开发了一个通用的图像处理程序PIMPOM。5.制作了带有粘合剂的橡胶格栅片和格栅橡皮图章。6.通过对仿真图像的分析，验证了系统的有效性. 7.利用该系统测量了橡胶板的位移和应变分布。8.将该系统应用于含载波图案的全息图像，分析了小位移分布。我们将进行更多的应用。而且。我们将联合收割机与高速摄像机相结合。我们希望把这套系统公开出售给公众使用。

项目成果

矢川元基 編 森本吉春 他: "計算力学の進展 モアレ法および格子法によるひずみ解析-画像処理とフーリエ交換の利用" 養賢堂, (1989)

Motoki Yakawa（编辑） Yoshiharu Morimoto 等人：“计算力学的进展：使用莫尔法和晶格法进行应变分析 - 图像处理和傅立叶交换的利用” Yokendo，（1989 年）

Yoshiharu,Morimoto;Yasuyuki,Seguchi;Hidekazu,Sakagami: "Strain Analysis by Moire Method and Grid Method - Use of Image Processing and Fourier Transform -" Science of Machine. 41-1. 224-230 (1989)

Yoshiharu，Morimoto；Yasuyuki，Seguchi；Hidekazu，Sakagami：“莫尔法和网格法的应变分析 - 图像处理和傅立叶变换的使用 -”机器科学。

Yoshiharu,Morimoto;Yasuyuki,Seguchi;Masao,Okada: "Screening and Moire Suppressing in Printing and Its Analysis by Fourier Transform" The Trans. of the Institute of Electronics Information and Communication Engineers. J72-D-I-3. (1989)

Yoshiharu，Morimoto；Yasuyuki，Seguchi；Masao，Okada：“印刷中的加网和莫尔条纹抑制及其傅里叶变换的分析”The Trans。

森本吉春、瀬口靖幸、東利彦: 日本機械学会論文集(A編). 54-504. 1546-1552 (1988)

Yoshiharu Morimoto、Yasuyuki Seguchi、Toshihiko Azuma：日本机械工程师学会会议记录（A 版）1546-1552（1988 年）。

Yoshiharu Morimoto;T.Hayashi;K.Wada: JSME International Journal, Series I. 32-1. 122-127 (1989)

Yoshiharu Morimoto；T.Hayashi；K.Wada：JSME 国际期刊，系列 I. 32-1。