A non-contact method to measure surface strain by means of laser speckles

被引：0
|
作者：
Kothbauer, R. [1 ]
Zagar, B. G. [1 ]
机构：
[1] Johannes Kepler Univ Linz, Inst Elekt Messtech, Osterreich Altenbergerstr 69, A-4040 Linz, Austria
来源：
ELEKTROTECHNIK UND INFORMATIONSTECHNIK | 2008年 / 125卷 / 03期
关键词：
Laser-speckles; non-contact strain measurement; geometrical deviations;
D O I：
10.1007/s00502-008-0511-6
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This article provides an overview of a certain non-contact method to measure surface strain. The theoretical background of this method is based on the cross-correlation of laser-speckle patterns, which are changing in an deterministic way due to loading the specimen. The method is usually used to determine thermal or mechanical material parameters. As an application the result of a Young's modulus measurement is shown. Furthermore, two different measurement set-ups are introduced, whose geometries display both simplicity and robustness.
引用
收藏
页码：92 / 97
页数：6
相关论文
共 50 条
  • [1] Einsatz von Laser-Speckles zur berührungslosen Messung von OberflächendehnungenA non-contact method to measure surface strain by means of laser speckles
    R. Kothbauer
    B. G. Zagar
    e & i Elektrotechnik und Informationstechnik, 2008, 125 (3) : 92 - 97
  • [2] NON-CONTACT METHOD FOR MEASURING OF MECHANICAL OSCILLATIONS BY MEANS OF A LASER-BEAM
    SCHULZE, UW
    KATOMIN, N
    METALL, 1975, 29 (08): : 799 - 800
  • [3] NEW NON-CONTACT METHOD TO MEASURE TEMPERATURE OF THE SURFACE OF SEMICONDUCTOR WAFERS.
    Tomita, Takashi
    Kinosada, Toshiaki
    Yamashita, Tatuya
    Shiota, Masahiro
    Sakurai, Takeshi
    1600, (25):
  • [4] Improved measure of workpiece surface deterioration during turning using non-contact vision method
    Derani, M. N.
    Ratnam, M. M.
    Nasir, R. M.
    PRECISION ENGINEERING-JOURNAL OF THE INTERNATIONAL SOCIETIES FOR PRECISION ENGINEERING AND NANOTECHNOLOGY, 2021, 68 : 273 - 284
  • [5] Non-contact method for measurement of surface/interfacial liquid properties with laser manipulation technique
    Mitani, Shujiro
    Sakai, Keiji
    XVTH INTERNATIONAL CONGRESS ON RHEOLOGY - THE SOCIETY OF RHEOLOGY 80TH ANNUAL MEETING, PTS 1 AND 2, 2008, 1027 : 1153 - 1155
  • [6] Non-contact strain measurement using metal foil gauges with the application of the laser speckle method
    Kato, Akira
    Nekai, Hidetoshi
    Tanabe, Kiyoshi
    Nagase, Yasuo
    Strain, 1997, 33 (01): : 15 - 19
  • [7] Non-contact detection of explosives by means of a tunable diode laser spectroscopy
    A.I. Nadezhdinskii
    Ya.Ya. Ponurovskii
    D.B. Stavrovskii
    Applied Physics B, 2008, 90 : 361 - 364
  • [8] Non-contact detection of explosives by means of a tunable diode laser spectroscopy
    Nadezhdinskii, A. I.
    Ponurovskii, Ya. Ya.
    Stavrovskii, D. B.
    APPLIED PHYSICS B-LASERS AND OPTICS, 2008, 90 (02): : 361 - 364
  • [9] A new non-contact measurement method of surface roughness
    Hui, M
    Niu, HB
    ISTM/99: 3RD INTERNATIONAL SYMPOSIUM ON TEST AND MEASUREMENT, 1999, : 886 - 888
  • [10] Non-destructive and non-contact materials evaluation by means of the optodynamic method
    Hrovatin, R
    Mozina, J
    INSIGHT, 2000, 42 (12) : 801 - 804
12345