3D deformation measurement in small areas based on grating method and photogrammetry

Dirk Bergmann; Reinhold Ritter

doi:10.1117/12.250747

18 September 1996 3D deformation measurement in small areas based on grating method and photogrammetry

Dirk Bergmann, Reinhold Ritter

Proceedings Volume 2782, Optical Inspection and Micromeasurements; (1996) https://doi.org/10.1117/12.250747
Event: Lasers, Optics, and Vision for Productivity in Manufacturing I, 1996, Besancon, France

Abstract

Material testing, quality control, and dimensioning of structures is related to deformation analysis of the considered objects. An important task is the 3D deformation measurement of an object surface. Optical field methods are suitable for solving this task. Due to the full field information, the results can be compared with finite element analysis. In this paper, an approach is described for measuring the 3D-displacement field of an object surface. It is an optical field method based on photogrammetry in combination with the object grating method. An important feature is that the measured objects can be small (in the range of a few mm²). In this paper, the main aspects (arrangement, calibration, measurement, displacement evaluation, strain calculation) are discussed and special problems measuring small areas are mentioned.

Citation Download Citation

Dirk Bergmann and Reinhold Ritter "3D deformation measurement in small areas based on grating method and photogrammetry", Proc. SPIE 2782, Optical Inspection and Micromeasurements, (18 September 1996); https://doi.org/10.1117/12.250747

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available