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Dive into the research topics where Lv Changrong is active.

Publication


Featured researches published by Lv Changrong.


Journal of The Optical Society of America A-optics Image Science and Vision | 2012

Fiber-optic interferometer fringe projection using integrating bucket modulation

Duan Fajie; Lv Changrong; Zhang Chao; Duan Xiaojie; Zhang Fukai

A new fiber-optic interferometer fringe projection with the integrating bucket method is presented. This method is based on the sinusoidal phase-modulating technique and makes use of Mach-Zehnder interferometer structure and Youngs double pinhole interference principle to achieve interference fringe projection. Here, we consider the modulated signal with the modulation intensity of laser (companion amplitude modulation) m in the calculation directly, adjust the optimal value of z to accommodate different m, and calculate the initial phase with phase generated carrier technology at the same time. Preliminary results from the optimum phase modulation z and initial phase φ(0) are discussed.


Archive | 2013

System and method for measuring vehicle outline dimensions based on machine vision and laser light curtain

Duan Fajie; Duan Xiaojie; Wu Wei; Xu Ying; Lv Changrong; Jiang Jiajia


Optical Fiber Technology | 2014

A surface profile reconstruction system using sinusoidal phase-modulating interferometry and fiber-optic fringe projection

Bo En; Duan Fajie; Lv Changrong; Feng Fan; Fu Xiao


Archive | 2014

System for measuring size of outer profile of vehicle based on machine vision and laser light screen

Duan Fajie; Duan Xiaojie; Wu Wei; Xu Ying; Lv Changrong; Jiang Jiajia


Archive | 2014

Phase-modulating synchronous-integral phase-shifting interference-measuring method and device

Duan Fajie; Zhang Chao; Hu Bo; Lv Changrong; He Zhigang


Optics and Laser Technology | 2013

Phase stabilizing method based on PTAC for fiber-optic interference fringe projection profilometry

Duan Xiaojie; Duan Fajie; Lv Changrong


Measurement | 2015

A Disturbance-free Surface Profile Measuring System with Sinusoidal Phase integrating-bucket Modulation

Feng Fan; Bo En; Lv Changrong; Deng Zhenyu; Fu Xiao; Huang Tingting; Duan Fajie


Archive | 2014

Controlling method for measuring initial phase and modulation degree in optical fiber interference fringe projection

Duan Fajie; Lv Changrong; Zhang Chao; Duan Xiaojie; Zhang Fukai


Archive | 2014

External modulation optical fiber interference fringe projection real-time three-dimensional shape measuring system

Duan Fajie; Lv Changrong; Bo En; Feng Fan; Duan Xiaojie; Zhang Fukai; Deng Zhenyu


Optics Communications | 2015

DFB laser diode interferometer with image capture timing control for surface profile reconstruction

Bo En; Duan Fajie; Feng Fan; Lv Changrong; Fu Xiao; Huang Tingting

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Bo En

Tianjin University

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