Biaxial laser-based displacement transducer.
W N Sharpe1, T S Payne, M K Smith
1Michigan State University, East Lansing, Michigan 48824.
The Review of Scientific Instruments
|June 1, 1978
Summary
A novel laser instrument measures biaxial displacements with voltage output. This technology accurately quantifies orthogonal movements in sheet materials across various angles and widths.
Area of Science:
- * Materials Science and Engineering
- * Optics and Photonics
- * Mechanical Testing
Background:
- * Traditional methods for measuring material displacement can be limited in accuracy and scope.
- * Understanding biaxial stress and strain is crucial for material performance analysis.
- * The need for precise, non-contact measurement techniques in materials testing.
Purpose of the Study:
- * To introduce a simple laser-based instrument for measuring orthogonal displacements.
- * To demonstrate the instrument's capability in quantifying biaxial displacements.
- * To validate the experimental techniques associated with the instrument.
Main Methods:
- * Development of a laser-based instrument generating output voltages proportional to orthogonal displacements.
- * Application of the instrument to measure displacements across 400-micrometer (µm) slots.
- * Conducting experiments on sheet specimens of various widths and at different angles.
Main Results:
- * The laser instrument successfully produced output voltages directly proportional to biaxial displacements.
- * Accurate measurements of displacements were achieved across 400-µm slots.
- * The technique proved effective for specimens of varying widths and at multiple angles.
Conclusions:
- * The developed laser instrument offers a straightforward and effective method for measuring biaxial displacements.
- * The experimental approach is suitable for analyzing material behavior under biaxial stress conditions.
- * This technology provides a valuable tool for materials characterization and performance evaluation.
