Mr. Feifan Cao Profile

Feifan Cao

at Tsinghua Univ Shenzhen International Graduate School

SPIE Involvement:

Author

Publications (8)

Proceedings Article | 23 November 2024 Paper

Absolute grating encoder with high-precision and large measurement range

Shengtong Wang, Sihan Lu, Feifan Cao, Linbin Luo, Yifeng Wang, Xinghui Li

Proceedings Volume 13240, 132401H (2024) https://doi.org/10.1117/12.3036290

KEYWORDS: Optical gratings, Sensors, Interferometers, Diffraction gratings, Precision measurement, Signal detection, Laser optics

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Proceedings Article | 23 November 2024 Paper

High-precision displacement measurement considering angular crosstalk for six-degree-of-freedom grating encoder

Feifan Cao, Linbin Luo, Shengtong Wang

Proceedings Volume 13240, 132401F (2024) https://doi.org/10.1117/12.3036274

KEYWORDS: Optical gratings, Diffraction gratings, Sensors, Diffraction, Crosstalk, Telescopes, Spatial resolution, Optical telescopes, Error analysis, Systems modeling

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Proceedings Article | 20 November 2024 Poster + Paper

Contactless 3D contour reconstruction method based on spectral confocal sensors

Jianjun Lai, Hao Wang, Feifan Cao, Xiaohao Wang, Xinghui Li

Proceedings Volume 13241, 132411W (2024) https://doi.org/10.1117/12.3036429

KEYWORDS: Confocal microscopy, Signal filtering, Sensors, Tunable filters, Inspection, Covariance matrices, Atomic force microscopy, Signal detection, Packaging, Manufacturing

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Proceedings Article | 20 November 2024 Poster + Paper

Machine vision-based automatic liquid dispensing metering technology and system for microfluids

Hao Wang, Feifan Cao, Wei Xiao, Xiang Qian, Xiaohao Wang, Xinghui Li

Proceedings Volume 13241, 132411V (2024) https://doi.org/10.1117/12.3036419

KEYWORDS: Liquids, Image segmentation, Calibration, Matrices, Image processing, Cameras, Image processing algorithms and systems, Interpolation, Feature extraction, Distortion

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Proceedings Article | 20 November 2024 Paper

Phase measurement method based on sub-sampling solution for high-precision high-speed distance measurement

Linbin Luo, Sihan Lu, Yifeng Wang, Shengtong Wang, Feifan Cao, Guochao Wang

Proceedings Volume 13241, 132410X (2024) https://doi.org/10.1117/12.3036415

KEYWORDS: Heterodyning, Signal processing, Phase measurement, Sampling rates, Interferometers, Laser frequency, Distance measurement, Diffraction gratings, Signal filtering, Pulse signals

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Proceedings Article | 20 November 2024 Paper

Displacement compensation algorithm for high-precision absolute six-degree-of-freedom grating encoder

Feifan Cao, Shengtong Wang, Linbin Luo, Xinghui Li

Proceedings Volume 13241, 132410B (2024) https://doi.org/10.1117/12.3036299

KEYWORDS: Optical gratings, Diffraction gratings, Phase shifts, Wave equations, Optical testing, Angle measurement, Motion models, Incident light, Doppler effect, Diffraction

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Proceedings Article | 20 November 2024 Paper

Laser source fluctuation compensation method and high-precision location algorithm for laser positioning technology based on quadrant photodetectors

Linbin Luo, Feifan Cao, Yifeng Wang, Shengtong Wang

Proceedings Volume 13241, 132410P (2024) https://doi.org/10.1117/12.3036270

KEYWORDS: Light sources, Laser applications, Sensors, Photodetectors, Laser stabilization, Laser sources, Photodiodes, Optical gratings, Computer simulations, Optical testing

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Proceedings Article | 4 November 2024 Poster

High working distance and six-degree-of-freedom grating encoder based on lens batch collimation

Linbin Luo, Feifan Cao, Yifeng Wang, Shengtong Wang

Proceedings Volume 13236, (2024) https://doi.org/10.1117/12.3036254

KEYWORDS: Optical gratings, Collimation, Diffraction gratings, Interferometers, Temperature metrology, Semiconductor manufacturing, Prisms, Optics manufacturing, Manufacturing, Lenses

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Showing 5 of 8 publications

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