ME925 (Formerly MSM905)
Optical Methods of
3 semester credits
Fall semester 2004
Scheduled meeting times and location:
2:40-4:00 Tue, Thur; but the time can be changed to accommodate
the needs of participants;
Approx. 10 experiments at average of 2 hours each; open lab basis.
Laboratory: Most of the experiments are done in 3500EB.
Note on enrollment process:
The computer enrollment process will probably tell you that the course is not
open or that it does not exist. Do not believe it.
Because this course is open to students from other fields, such as
physics, the enrollment process might involve an extra step.
Students will probably be required to obtain an "over-ride form"
from the student advisor, Gail Griffore, in the Department of Mechanical Engineering,
room 2418 Engineering Building. This form is to be
filled out and then your name will be entered into the computer. This is a nuisance, but it is
routine and it takes only a few minutes. I am working to fix this problem
Frequency of offering and level
According to the current arrangement, this course is given only every second
This course is taken primarily by MS and PhD students in engineering, although
students from other disciplines and at other levels also have taken it
Gary Cloud, Professor
Materials Science and Mechanics Department,
Michigan State University
Optical Methods of Engineering Analysis
by Gary Cloud
Cambridge University Press, 1995 (Hardback); 1998 (Softbound)
Note: The second-printing soft-bound edition of the textbook is readily
available and costs about $35.00. The hardbound version is sold out.
Note: The textbook will be available from the
instructor beginning July 2004
Grading basis will be roughly 50% exams, 50%
Overall average SIR score for past presentations of this course is about 3.9 out of 4.
Given recent advances in computer-based speckle and holographic
techniques, rapid whole-field optical methods of
displacement, shape, and strain measurement are replacing more
conventional sensing methods such as resistance strain gages and
transducers in many
applications involving measurement of deformation, strain, and motion, and also
for nondestructive inspection.
Optics and optronics has, for the past several years, been the
fastest growing field in science, engineering, and technology
(SPIE; Optics News.) Industrial demand for persons having
knowledge of optics is far exceeding supply.
This course should be of interest to persons who are interested in
experimental mechanics, physics, optical physics, machine vision,
motion measurement,engineering design, structural testing,
metrology, nondestructive inspection, contour measurement, and
Coverage and approach:
The syllabus will follow the textbook quite
closely, although it will be necessary to skip some topics owing to
The course begins with basics optics phenomena including interference
and general diffraction. Studies of methodology and applications
emphasize optical methods of measurement,
and holographic interferometry, laser speckle, electronic speckle
pattern interferometry (video holography), moire interferometry, Digital image
correlation, geometric and enhanced moire, photoelasticity, laser Doppler
velocimetry, and some classical interferometry. Topics in
elementary optics and interferometry are covered as needed.
General diffraction theory and applications in optical Fourier
processing are also studied.
The instructional paradigm interleaves study of the necessary
optics theory with study of the optical techniques. This approach
facilitates learning theory and laboratory applications in one
Laboratory experience with this technology is included in the
course. Laboratory experiments are listed below. The approach is
specifically designed to accommodate students of various
backgrounds, including but not limited to physics and
For most of the experiments, digital image acquisition is used, so the
students gain familiarity with these techniques including the hardware and
Supplies and materials for the course will be ordered during the
summer. It would be
most helpful to the instructor if persons interested in taking the
course indicate their interest to him soon.
Prof. Gary Cloud
Materials Science and Mechanics Dept.
College of Engineering
Michigan State University
East Lansing, MI 48824 USA
email Prof. Cloud
Note: Typically, the class meets periodically in the lab for
demonstrations related to the experiments. The experiment stations
are left set up, so that students can perform the experiments
singly or in pairs at any time.
Some flexibility in choice of experiments is provided to
accommodate students from areas other than solid mechanics.
- Calibration of polariscope and photoelastic material
- Complete photoelasticity analysis
- Photoelastic coatings (demonstration)
- Digital image acquisition (embedded in other experiments)
- Geometric moire
- Moire interferometry (might be demonstration only)
- Optical Fourier processing--spatial filtering
- Making a hologram
- Holographic interferometry
- Speckle photography
- Electronic speckle pattern interferometry (ESPI)
- Strain measurement using electronic speckle
- Laser doppler interferometry (optional)
- Laboratory project (optional)
Created: 21 March 1998 by Gary Cloud
Last Updated: 2 July 2004