COURSE DESCRIPTION:

OPTICAL METHODS FOR

ENGINEERING MEASUREMENTS

Taught by Fr. Matthys, Professor of Physics and EECE.
Aimed at Engineering students, especially those in MEEN and INEN.
Course is listed in different departments: PHYS 198, MEEN 159, INEN 159.
Course can be taken for graduate credit (project involved).
Offered in Spring 1997 semester with Lectures on MW at 4:20-5:35pm
Pre-requisites: Optics as covered in Phys 4, Math at level of Fourier Analysis
Textbook: G. Cloud, "Optical Methods of Engineering Analysis," Cambridge Press, 1995.

Methods for Full Field, Non-Contact, High Precision Measurement

1. Photoelasticity

Measurement of stress using birefringence

2. Moire fringes

In-plane displacements

Surface contouring by shadow and projection moire

3. Holographic Interferometry

In-plane and out-of-plane measurements

The Sign problem - spatial and temporal carrier patterns

Phase unwrapping

4. Speckle Pattern Measurements

Speckle photography : Data reduction using Young's fringes, Fourier filtering, correlation methods

Speckle interferometry (Electronic Speckle Pattern Interferometry, ESPI)

Lab Work

Because of limited hardware, the lab component will consist of in-class optical setups and digital image acquisition. Students will then be given a set of the acquired images and will have to perform independent numerical analyses.