The use of Circular Dammann Gratings (CDG) in angle measurement

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.

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Bibliographic Details
Published in2008 Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science pp. 1 - 2
Main Authors Fung, J.W., Po Sheun Chung
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.05.2008
Subjects
(040.1520) CCD
(050.1950) Diffraction and gratings
(120.1880) Detection
Charge coupled devices
charge-coupled device
Diffraction gratings
Displacement measurement
Distortion measurement
Goniometers
Optical diffraction
Optical distortion
Optical interferometry
Optical surface waves
Rotation measurement
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Summary: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.
ISBN:1557528594
9781557528599
DOI:10.1109/QELS.2008.4552873