Title :
The use of Circular Dammann Gratings (CDG) in angle measurement
Author :
Fung, J.W. ; Chung, Po Sheun
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon
Abstract :
We describe a robust method of inclined angle measurement based on the projection of the CDG image. An accuracy of 5% can easily be achieved and this application can be employed in many different areas.
Keywords :
angular measurement; diffraction gratings; CDG image; angle measurement; circular dammann gratings; Charge coupled devices; Diffraction gratings; Displacement measurement; Distortion measurement; Goniometers; Optical diffraction; Optical distortion; Optical interferometry; Optical surface waves; Rotation measurement; (040.1520) CCD, charge-coupled device; (050.1950) Diffraction and gratings; (120.1880) Detection;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
