A small-angle self-mixing measurement system with improved detection resolution based on a rotatable pentagonal prism

A novel, to the best of our knowledge, method is proposed in this study to permit the controllable resolution of a micro-angle measurement by using a Michelson interferometer. The resolution of the proposed system can be adjusted by changing the distances between a pair of parallel mirrors. Through experiments, it was observed that as the distance was changed from 0 to 6 mm, the corresponding resolution was significantly altered from 22.88 to 14.02 µrad. Compared with other small angle measurement methods, the proposed method can realize the conversion of multiple measurement resolutions more easily and conveniently.

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A small-angle self-mixing measurement system with improved detection resolution based on a rotatable pentagonal prism

Cited by 4 publications

References 20 publications

Design and experimental study of the biorthogonal linkage laser self-mixing angle sensor

Design and experimental study of the biorthogonal linkage laser self-mixing angle sensor

Angle measurement method based on speckle affected laser self-mixing interference signal

Method of reaching a resolution-controllable micro-angle measurement by using a Michelson interferometer

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