scholarly journals Measuring Method of Radius of Curvature Based on Dual-Frequency Laser Interferometer

2016 ◽  
Vol 06 (08) ◽  
pp. 209-214 ◽  
Author(s):  
Wenlong Zhang ◽  
Liang Miao ◽  
Yu Liu
Keyword(s):  
Laser Interferometer ◽  
Measuring Method ◽  
Radius Of Curvature ◽  
Dual Frequency ◽  
Frequency Laser

Research on 3D Reconstruction of Flatness Error Measurement System

2013 ◽  
Vol 456 ◽  
pp. 203-206
Author(s):  
Chun Long Zou ◽  
Shen Huai Wang ◽  
Huang Hao ◽  
Yu Rong Chen
Keyword(s):  
3D Reconstruction ◽  
Laser Interferometer ◽  
Measuring Method ◽  
Reconstruction Method ◽  
Error Measurement ◽  
Dual Frequency ◽  
Frequency Laser ◽  
Function Module ◽  
Flatness Error ◽  
Instrument Accuracy

Basis on the analysis of the plate flatness detection, some problems of the traditional flatness measuring method is pointed out and the 3D reconstruction method of flatness is proposed. The digital flatness measuring instrument is designed, and the measured plane information is entered into the computer, then the data processing is completed by software, which solves the problem of amounts of data, complicated calculation and low accuracy of traditional measurement method. The 3D reconstruction of surface morphology is completed by OpenGL and BCB, to make the information of flatness more sufficient and intuitive. To verify the validity of the measurement, use the flatness function module of dual-frequency laser interferometer to evaluate the instrument accuracy, the results show that it reaches the expected precision index.

Precision measurement of microscopic module through dual-frequency laser interferometer

2015 ◽  
Vol 36 (2) ◽  
pp. 259-265 ◽  
Author(s):  
Xue Yuan ◽  
◽  
Chen Qing-shan ◽  
Liu Li-shuang ◽  
Lyu Yong
Keyword(s):  
Precision Measurement ◽  
Laser Interferometer ◽  
Dual Frequency ◽  
Frequency Laser

Environment Compensation Technologies in Dual-Frequency Laser Interferometer Measurement System

2014 ◽  
Vol 41 (4) ◽  
pp. 0408004
Author(s):  
池峰 Chi Feng ◽  
朱煜 Zhu Yu ◽  
张志平 Zhang Zhiping ◽  
高为宫 Gao Weigong
Keyword(s):  
Measurement System ◽  
Laser Interferometer ◽  
Dual Frequency ◽  
Frequency Laser

A Measuring Method of Track Irregularity for High-Speed Railway Based on Dual-Frequency Laser Interference Technique

2013 ◽  
Vol 552 ◽  
pp. 446-451
Author(s):  
Wen Jun He ◽  
Yue Gang Fu ◽  
Yang Zheng ◽  
Lei Zhang ◽  
Jia Ke Wang ◽  
...  
Keyword(s):  
High Speed ◽  
Reference Method ◽  
Measuring Method ◽  
Dual Frequency ◽  
Laser Interference ◽  
High Speed Railway ◽  
Laser Alignment ◽  
Track Irregularity ◽  
Frequency Laser ◽  
Ray Path

A new measuring method of track irregularity for high-speed railway is proposed by using dual-frequency laser interference technique. The linear deviation between the phase-locked gauging head and the center line of the railway route can be calculated by comparing the phase difference variation of the laser beat signal in the test ray path and the reference ray path when the portable track inspection car is moving forward along the track. While we use laser ranging technique to measure gauge, after processing data, the static irregularity of track will be acquired by changing straightness deviation of phase-locked gauging head into straightness deviation of left-right two tracks. The method is different from the existing techniques for detecting high-speed railway irregularity, such as the inertial reference method, the measuring method of chord and the method of laser alignment; it utilized the accuracy of the time to accomplish the high-precision measurement of the space and achieved innovation in theory.

Nonlinear error analysis and experimental measurement of Birefringence-Zeeman dual-frequency laser interferometer

2019 ◽  
Vol 436 ◽  
pp. 264-268
Author(s):  
Yuan Yang ◽  
Yong Deng ◽  
Yidong Tan ◽  
Zhenyu Huang ◽  
Yong Zhang ◽  
...  
Keyword(s):  
Error Analysis ◽  
Experimental Measurement ◽  
Laser Interferometer ◽  
Dual Frequency ◽  
Nonlinear Error ◽  
Frequency Laser
Sign in / Sign up

Export Citation Format

Share Document