Measurement of displacement using phase shifted wedge plate lateral shearing interferometry
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- 作者：Reena Disawal ; Shashi Prakash ; sprakash_davv@rediffmail.com" class="auth_mail" title="E-mail the corresponding author
- 关键词：Wedge plate lateral shearing interferometry ; Displacement ; Fringe analysis
- 刊名：Optics & Laser Technology
- 出版年：2016
- 出版时间：March 2016
- 年：2016
- 卷：77
- 期：Complete
- 页码：64-71
- 全文大小：3550 K
文摘
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Interferometric technique for measurement of displacement.
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Technique is based on Wedge plate Lateral Shearing Interferometry and Phase shifting technique.
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Simple experimental arrangement with minimum interferometric noise.
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The technique can be used for measurements of step height, profile, etc.