Invention Grant
- Patent Title: Optical method for detecting displacements and strains at ultra-high temperatures during thermo-mechanical testing
- Patent Title (中): 用于在热机械测试期间检测超高温下的位移和应变的光学方法
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Application No.: US14215781Application Date: 2014-03-17
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Publication No.: US09400237B2Publication Date: 2016-07-26
- Inventor: Russell W. Smith , H. Kevin Rivers , Joseph G. Sikora , Mark C. Roth , William M. Johnston
- Applicant: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Applicant Address: US DC Washington
- Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
- Current Assignee Address: US DC Washington
- Agent Robin W. Edwards
- Main IPC: G01J5/02
- IPC: G01J5/02 ; G01N3/06 ; G01N3/60
Abstract:
An ultra-high temperature optical method incorporates speckle optics for sensing displacement and strain measurements well above conventional measurement techniques. High temperature pattern materials are used which can endure experimental high temperature environments while simultaneously having a minimum optical aberration. A purge medium is used to reduce or eliminate optical distortions and to reduce, and/or eliminate oxidation of the target specimen.
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