All Polarization Maintaining Fiber Based Dual-Comb High Precision Absolute Distance Measurement System

We are developing a form measurement system for the surfaces of freeform optics and large conventional optics. The specifications of the optics are diameters up to 1.5 m and radii of curvature down to 10 m. This includes optics like telescope mirror segments and synchrotron optics. Using a Fizeau interferometer, we propose a subaperture stitching method that involves vertically aligning the interferometer’s optical axis to the local surface gradient and measuring the absolute distance from the interferometer’s reference flat to the specimen. Experimental results for the absolute distance measurement are shown.

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Design of Millimeter Range High Precision Ultrasonic Distance Measurement System

2017 International Conference on Computer Systems, Electronics and Control (ICCSEC) ◽

10.1109/iccsec.2017.8446880 ◽

2017 ◽

Author(s):

Rong Xiang ◽

Zhengui Shi

Keyword(s):

High Precision ◽

Measurement System ◽

Distance Measurement

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A novel multi-dimensional absolute distance measurement system using a basic frequency modulated continuous wave radar and an external cavity laser with trilateration metrology

2017 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems ◽

10.1117/12.2295183 ◽

2018 ◽

Author(s):

xingting xiong ◽

Xinghua Qu ◽

Fumin Zhang

Keyword(s):

Measurement System ◽

Continuous Wave ◽

External Cavity ◽

Distance Measurement ◽

Absolute Distance ◽

External Cavity Laser ◽

Basic Frequency ◽

Wave Radar ◽

Cavity Laser

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Absolute distance measurement system with micron-grade measurement uncertainty and 24 m range using frequency scanning interferometry with compensation of environmental vibration

Optics Express ◽

10.1364/oe.24.030215 ◽

2016 ◽

Vol 24 (26) ◽

pp. 30215 ◽

Cited By ~ 21

Author(s):

Cheng Lu ◽

Guodong Liu ◽

Bingguo Liu ◽

Fengdong Chen ◽

Yu Gan

Keyword(s):

Measurement Uncertainty ◽

Measurement System ◽

Distance Measurement ◽

Absolute Distance ◽

Frequency Scanning ◽

Environmental Vibration ◽

Frequency Scanning Interferometry

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High precision absolute distance measurement with the fiber femtosecond optical frequency comb

10.1117/12.2212626 ◽

2016 ◽

Cited By ~ 1

Author(s):

Jiashuai Guo ◽

Tengfei Wu ◽

Zhiguo Liang ◽

Yu Wang ◽

Jibo Han

Keyword(s):

High Precision ◽

Frequency Comb ◽

Distance Measurement ◽

Optical Frequency Comb ◽

Optical Frequency ◽

Absolute Distance

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A New System of High-Precision Absolute Laser Interferometer Distance Measurement

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.380-384.769 ◽

2013 ◽

Vol 380-384 ◽

pp. 769-772

Author(s):

Chen Yang Zhang ◽

Bing Li

Keyword(s):

High Precision ◽

Laser Scanning ◽

Laser Interferometer ◽

Laser Interferometry ◽

Distance Measurement ◽

Absolute Distance ◽

Distance Information ◽

New Methods ◽

Interference Fringes ◽

New System

With the improvement of precision in various fields, we present a new method for the measurement of the absolute distance of a remote target based on the laser interferometry technique. In this paper, we obtain the interference fringes change information (the distance information) with the help of laser scanning with different frequency. It does not require the target to move in the direction of measurement. We have done experiments to compare this new methods results with the results of RENISHAW interferometer. Its improved that the accuracy of distance measurement is 10-4~10-5 relatively.

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