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Metrology
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Advances in Laser Interferometry for Precision Engineering
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Advances in Laser Interferometry for Precision Engineering

A special issue of Metrology (ISSN 2673-8244).

Deadline for manuscript submissions: closed (31 December 2023) | Viewed by 1953

Special Issue Editors

Dr. Ruitao Yang

E-Mail Website
Guest Editor
School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
Interests: laser interferometry; laser ranging; laser frequency stabilization; optical frequency comb generation; optical frequency comb stabilization; multi-DoF measurement
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Han Haitjema

E-Mail Website
Guest Editor
Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300, 3001 Leuven, Belgium
Interests: dimensional metrology; interferometry; surface roughness; surface filtering
Special Issues, Collections and Topics in MDPI journals
Prof. Dr. Pengcheng Hu

E-Mail Website
Guest Editor
School of Instrumentation Science and Engineering, Harbin Institute of Technology, Harbin 150080, China
Interests: laser interferometry; ultra-precision laser measurement; optoelectronic instruments
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

In recent decades, laser interferometry has found more and more applications in the field of precision engineering. With the advent of precision and even ultra-precision laser systems developed for the measurement of length, displacement, angle, and other key dimensional quantities, laser interferometry has become the standard technique for metrology. In the background of quantized metrology, laser interferometry is facing the second spring, along with the growth of meta-surfaces, the optical clock, optical frequency comb, vortex beam generation, etc. To further boost the impact of this exciting and rapidly evolving field, this Special Issue aims to bring together contributions from leading experts in the field, fostering effective solutions for future challenges in laser interferometry for precision engineering.

Topics of interest in this Special Issue include but are not limited to the following:

  • Key components or devices for laser interferometry;
  • Novel interferometric system for metrology;
  • Calibration and comparison system for interferometers;
  • New applications of laser interferometry;
  • Special geometrical parameter measurement with interferometers.

Dr. Ruitao Yang
Prof. Dr. Han Haitjema
Prof. Dr. Pengcheng Hu
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Metrology is an international peer-reviewed open access quarterly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1000 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • key components or devices for laser interferometry
  • novel interferometric system for metrology
  • calibration and comparison system for interferometers
  • new applications of laser interferometry
  • special geometrical parameter measurement with interferometers

Published Papers (3 papers)

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Research

22 pages, 4649 KiB  
Article
Comparison of Dimensional Accuracy between a Laser Scanner and a Laser Tracker with Handheld Scan in a Laboratory Setting
by Alex Krummenauer, Douglas Bergamo, Roberto Serpa Soares, Victor Emmanuel de Oliveira Gomes and Vitor Camargo Nardelli
Metrology 2024, 4(2), 205-226; https://doi.org/10.3390/metrology4020013 - 12 Apr 2024
Viewed by 371
Abstract
The dimensional accuracy of a laser scanner has been extensively evaluated using various measurement methods and diverse reference standards. This study specifically focuses on two key considerations. Firstly, it assesses the dimensional accuracy of the laser scanner by employing another laser scanner, a [...] Read more.
The dimensional accuracy of a laser scanner has been extensively evaluated using various measurement methods and diverse reference standards. This study specifically focuses on two key considerations. Firstly, it assesses the dimensional accuracy of the laser scanner by employing another laser scanner, a handheld scanner, as the reference measurement method. Secondly, the study involves the use of three spheres fixed on each wall in both coplanar and non-coplanar positions within a laboratory room at SENAI ISI-SIM. The primary objective is to determine the dimensional accuracy between the centers of the coplanar and non-coplanar spheres up to 10 m. The comparison includes measurement uncertainties, as per ISO GUM standards, obtained using the laser scanner in a laboratory setting with controlled temperature and humidity. Analyzing non-coplanar dimensional accuracy enhances our understanding of the metrological performance of the laser scanner, particularly when assessing the dimensions of objects positioned randomly within a scanning scene. Full article
(This article belongs to the Special Issue Advances in Laser Interferometry for Precision Engineering)
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10 pages, 3397 KiB  
Article
Error Analysis of an Economical On-Site Calibration System for Linear Optical Encoders
by Yatao Huang, Zihan Su, Di Chang, Yunke Sun and Jiubin Tan
Metrology 2024, 4(1), 131-140; https://doi.org/10.3390/metrology4010009 - 13 Mar 2024
Viewed by 457
Abstract
A calibration system was designed to evaluate the accuracy of linear optical encoders at the micron level in a fast and economical manner. The system uses a commercial interferometer and motor stage as the calibrator and moving platform. Error analysis is necessary to [...] Read more.
A calibration system was designed to evaluate the accuracy of linear optical encoders at the micron level in a fast and economical manner. The system uses a commercial interferometer and motor stage as the calibrator and moving platform. Error analysis is necessary to prove the effectiveness and identify areas for optimization. A fixture was designed for the scale and interferometer target to meet the Abbe principle. A five-degree-of-freedom manual stage was utilized to adjust the reading head in optimal or suboptimal working conditions, such as working distance, offset, and angular misalignment. The results indicate that the calibration system has an accuracy of ±2.2 μm. The geometric errors of the calibration system, including mounting errors and non-ideal motions, are analyzed in detail. The system could be an inexpensive solution for encoder manufacturers and customers to calibrate a linear optical encoder or test its performance. Full article
(This article belongs to the Special Issue Advances in Laser Interferometry for Precision Engineering)
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14 pages, 4742 KiB  
Article
Study of the Errors in Interpolated Fast Fourier Transform for Interferometric Applications
by Federico Cavedo, Parisa Esmaili and Michele Norgia
Metrology 2024, 4(1), 117-130; https://doi.org/10.3390/metrology4010008 - 08 Mar 2024
Viewed by 504
Abstract
Frequency estimation is often the basis of various measurement techniques, among which optical distance measurement stands out. One of the most used techniques is interpolated fast Fourier transform due to its simplicity, combined with good performance. In this work, we study the limits [...] Read more.
Frequency estimation is often the basis of various measurement techniques, among which optical distance measurement stands out. One of the most used techniques is interpolated fast Fourier transform due to its simplicity, combined with good performance. In this work, we study the limits of this technique in the case of real signals, with reference to a particular interferometric technique known as self-mixing interferometry. The aim of this research is the better understanding of frequency estimation performances in real applications, together with guidance on how to improve them in specific optical measurement techniques. An optical rangefinder, based on self-mixing interferometry, has been realized and characterized. The simulation results allow us to explain the limits of the interpolated fast Fourier transform applied to the realized instrument. Finally, a method for overcoming them is proposed by decorrelating the errors between the measurements, which can provide a guideline for the design of frequency-modulated interferometric distance meters. Full article
(This article belongs to the Special Issue Advances in Laser Interferometry for Precision Engineering)
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