Improvement of precision of self-mixing displacement sensor based on region tracking for large displacement

Kim, Chol-Hyon; Hong, Hui-Song; Yun, Tu-Hon; Kim, Kwang‐Ho; An, Jongho; Ju, Won-Song

doi:10.1016/j.optcom.2021.127807

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Cited by 4 publications

(2 citation statements)

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“…In the self-mixing effect the speckle is important and therefore there have been made many studies related to it [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

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Requirements and designing method of optics for self-mixing sensor in presence of speckle

Sin,

Kim,

Kim

et al. 2024

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Since the surface of the target which the self-mixing interferometric displacement sensor encounters generally is rough, the sensor is always affected by speckle effect. Although the speckle has an effect on the quality of the self-mixing signal, we have found for the first time that the speckle puts forward an important requirement for the optical system of the sensor. In the paper we have also presented a design method of the optical system for the self-mixing displacement sensor which can provide variable measurement distance. The methods and results reported will give deeper understanding of self-mixing phenomenon and be of great help to improving the performance of the self-mixing sensor.

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“…In the self-mixing effect the speckle is important and therefore there have been made many studies related to it [2][3][4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

“…There was an attempt to build a model for the self-mixing interferometric system taking account of speckle [3]. There studied many methods to extract information such as displacement and velocity from speckle-affected SMSs [2][3][4]6,8,9]. There analyzed the errors in displacement measurement due to speckle [5,7].…”

Section: Introductionmentioning

confidence: 99%