Development of Precise Stress-strain Measurement System by Employing Electronic Speckle Pattern Interferometry

利用电子散斑干涉技术开发精密应力应变测量系统

• 批准号: 03554010
• 负责人: TAKEMOTO Shuzo
• 金额: $ 6.53万
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1991
• 资助国家: 日本
• 起止时间: 1991 至 1992
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-03554010/
• 关键词: LASER; CRUSTAL DEFORMATION; CRUSTAL STRESS; HOLOGRAPHY; IMAGE PROCESSING; VISUALIZATION; ESPI; 干渉法; レ-ザ-; スペックル・パタ-ン干渉計

The aim of research is to develop a new type of crustal-strain and -stress measurement system by employing the technique of Electronic Speckle Pattern Interferometry (ESPI), which enables, as well as holographic interferometry, two or three dimensional deformation of object to be measured quantitatively in terms of the wavelength of laser light without any contacting the object. Moreover, the ESPI technique has some attractive feature compared with holographic interferometry, i.e, short exposure time and no need for wet photographic processing, because this technique does not use a holographic plate instead a video camera to record interference fringe patterns.In 1991, we developed a borehole module of the ESPI stress measurement system. The module is designed to be very compact (10cm in diameter and about 50cm in length) and to be used in a small borehole.In January, 1992, The first field experiment using the ESPI borehole stressmeter was carried out in a tunnel at the Hiraki mine, Hyogo Prefecture.

研究的目的是利用电子散斑干涉（ESPI）技术，研制一种新型的地壳应变和应力测量系统，该系统与全息干涉技术一样，可以在不接触物体的情况下，根据激光波长定量测量物体的二维或三维变形。与全息干涉术相比，电子散斑干涉术还具有曝光时间短、不需湿照相等优点，因为它不用全息干板，而用摄像机记录干涉条纹图。1992年1月，在日本兵库县平木矿的坑道中，首次进行了ESPI钻孔应力计的现场试验。

项目成果

竹本 修三,平林 順,鈎卯 三郎,田中 豊,天神林 孝二: "電子式スペックル・パターン干渉法を用いた地殻応力測定装置の開発" 「地震」. Vol.46. (1993)

Shuzo Takemoto、Jun Hirabayashi、Saburo Kagami、Yutaka Tanaka、Koji Tenjinbayashi：“使用电子散斑干涉测量法开发地应力测量装置”“地震”第 46 卷。

TAKEMOTO,S.: "Laser Holography and Electronic Speckle Pattern Interferometry in Earthquake Prediction and Analysis." Proc. of OWLSII "Optics for Protection of Man and Environment against Natural and Technological Disasters" Oct. 4-9, 1992, Munster, German

TAKEMOTO,S.：“地震预测和分析中的激光全息术和电子散斑干涉测量法。”

TAKEMOTO,S.: "Applications of Holography and ESPI in Geophysical Sciences." Proc. of SPIE ; Inspection and Quality Control, Optical Inspection and Testing. Vol.CR46. (1993)

TAKEMOTO,S.：“全息术和 ESPI 在地球物理科学中的应用。”

TAKEMOTO,S.: "Geophysical Application of Holographic and ESPI Techniques" Proc.of SPIE;Laser Interferometry IV,. Vol.1553. 168-174 (1991)

TAKEMOTO,S.：“全息和 ESPI 技术的地球物理应用”Proc.of SPIE；激光干涉测量 IV，。

TAKEMOTO,S.: "Applications of Holography and ESPI in Geophysical Sciences" Proc.of SPIE;Inspection and Quality Control,Optical Inspection and Testing. Vol.CR46. (1993)

TAKEMOTO,S.：“全息术和 ESPI 在地球物理科学中的应用”Proc.of SPIE；检验和质量控制、光学检验和测试。