Product Description
The ever-increasing requirements of product quality and reliability demand more efficient measuring and testing methods. Developed in the past decade, shearography--also called speckle pattern shearing interferometry--is a coherent-optical measuring and testing method, similar to holographic interferometry. This book describes the development of second-generation digital shearography, which is especially effective in nondestructive testing, strain measurement, and vibration analysis due to its relative insensitivity to environmental disturbances. Contents - Introduction and approach to problem - Shearographic metrology - Simple digital shearography - Phase-shifting shearography - Evaluation of the interferogram - Nondestructive testing of materials - Strain measurement - Vibration analysis using continuous wave lasers - Digital shearography for quantifying heat flow rate - Analysis of deviations - Assessment of digital speckle pattern shearing interferometry
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