Chapter 13

Atomic Force Microscopy Digital Image Correlation Method

Terence K.S. Wong

Abstract

An in situ method of strain characterization based on image analysis of atomic force microscope images is presented. The sample topographic image is measured before and after deformation using an atomic force microscope with closed loop feedback control of position. By using a mapping function for each point in the image and performing a correlation using the height data, the displacement, strain and strain gradient can be deduced. The digital image correlation algorithm is most suitable for microelectromechanical materials and devices.

Total Pages: 102-111 (10)

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