Faculty of Systems Engineering,
Dept. of Opto-Mechatronics,
930, Sakaedani, Wakayama
The Photomechanics Laboratory is mainly working on the study for highly accurate and high-speed measurement of shape, deformation, strain, and stress by image processing.
We are also developing the shape measurement method using the DMD（Digital Micro-mirror Device）, which is the new type of the optical devices. For the recent research, we are working on the measurement method of sub-nanometer displacement using phase shifting digital holography and we have realized sub-nanometer displacement measurement.
In addition, we perform optical experiments by image processing. The methods we developed in this laboratory are applicable to the various fields that require measurement and analysis of shape, deformation, stress and strain.
High accuracy, speed measurement of shape and deform
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This research theme is focusing on the method to measure the shape and deformation of an object or a human body with high accuracy and in high speed. For the object shape measurement, we have the technique to measure the object in micron order. For the human body, we can perform the shape measurement in real time. Also, we are working on the research to improve accuracy and speed for the measurement.
High accuracy, speed measurement of stress and strain
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This research theme is focusing on the development to measure stress and strain of the inside of the object. Recently we have developed the method to measure the deformation distribution in the resolution of sub-nanometer using digital holography. This is the highest resolution that has been developed ever. By developing this method, we are now working on the development of the practical measurement system to measure the strain distribution in high speed.
This research theme is focusing on the method to model the object by using the measured results or to model the shape that are designed by processing the measured results on the computer. At present, we are working on the development of the system where a user can easily edit the shape, 3D printer, and the system that easily measures the shape and color information of the object.
We also works on the related researches as shown below.
・High-speed shape measurement using the Digital Micro Device
・Displacement and strain distribution measurement using moire interferometry
・Full-field shape measurement, large object shape measurement, and mobile shape measurement
・Development of e-learning software for optics education ・Stereoscopic vision using digital holography