Assessment of selected metrological properties of laser triangulation sensors

Swojak, Natalia; Wieczorowski, Michał; Jakubowicz, Michał

doi:10.1016/j.measurement.2021.109190

Cited by 37 publications

(12 citation statements)

References 46 publications

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“…This is often the case in the production line, where such systems enable in-line verification, i.e. where the detection of possible defects is most desirable [10]. An example configuration of a station based on laser line sensors is presented in Fig.…”

Section: Measurement Technologies For Metrology 40mentioning

confidence: 99%

Towards Metrology 4.0 in Dimensional Measurements

Wieczorowski¹,

Trojanowska²

2023

Journal of Machine Engineering

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The paper presents the transformations taking place in length and angle metrology related to Metrology 4.0, a measurement strategy resulting from Industry 4.0. Metrology in an industrial conditions is gradually focusing more and more on advanced measurement systems. The coming reality will see the development of communication between systems and their components, as well as the individual sensors belonging to them. The Internet of Things and artificial intelligence as well as the possibility of using augmented or virtual reality will play a momentous role. The demand for these technologies results in the development of new specialized software and hardware solutions, the use and availability of which are diametrically different compared to the past. Also, the use of AI and cybersecurity in metrology is a topic that is receiving increasing attention. Metrology 4.0 is therefore becoming a very important part of the functioning of industry, changing the philosophy and organization of measurements carried out on the basis of new measurement techniques.

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Section: Measurement Technologies For Metrology 40mentioning

confidence: 99%

Towards Metrology 4.0 in Dimensional Measurements

Wieczorowski¹,

Trojanowska²

2023

Journal of Machine Engineering

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“…In order to verify the validity of the above-mentioned visual measurement system, the maximum permissible error for length measurement (MPEE) and the measurement uncertainty of the measurement system are given. In this paper, the following verification scheme was designed with reference to the MPEE calculation process of CMM and the uncertainty of length measurement in the literature [ 25 ]. In this paper, three standard length gauge blocks and three angle gauge blocks were selected to realize the calculation of MPEE of this vision system.…”

Section: System Setupmentioning

confidence: 99%

Automatic Measurement of External Thread at the End of Sucker Rod Based on Machine Vision

Wang

2022

Sensors

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Aiming at the low efficiency of manual measurement of threads and the lack of practicability in machine vision measurement before, online size measurement of threads at the end of sucker rods based on machine vision was studied. A robotic arm is used to carry an optical device to achieve high-quality image acquisition of threads. Based on the prior knowledge of the thread profile angle, the directional edge detection operator is customized to achieve the accurate detection of the left and right edges of the thread. Noise filtering, sorting, and left and right edge-matching algorithms based on connected domains are developed to eliminate the interference effects of electrostatic dust and oil pollution in online measurement, and the dimension of thread profile angles, pitches, major diameters, and minor diameters can be precisely calculated. The experimental results show that the screw thread parameter measurement time is about 0.13 s; the maximum and minimum average errors of the thread angles are 0.011° and 0.632°, respectively; and the total average deviation is less than 0.08°. For the screw thread pitch, major diameter, minor diameter, and pitch diameter parameter measurement, the deviation of the measurement results between the proposed method and the universal tool microscope (UTM) method is less than 10 μm. It fully proves the effectiveness and accuracy of the method in this paper and, at the same time, shows that the method has good real-time performance and high application significance, which lays a good foundation for the subsequent online thread measurement.

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“…The other technology applicable to the inspection issue being described is laser technology. The simplest way is by implementing laser scanners working on the laser triangulation principle [25]. The background of the line laser sensors in the system, where the scanned object is scanned by the camera vision supported by line laser beam and the z-value is computed by triangulation.…”

Section: The Laser Sensorsmentioning

confidence: 99%

Analysis of Laser Sensors and Camera Vision in the Shoe Position Inspection System

Klarák

Kuric

Zajačko

et al. 2021

Sensors

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Inspection systems are currently an evolving field in the industry. The main goal is to provide a picture of the quality of intermediates and products in the production process. The most widespread sensory system is camera equipment. This article describes the implementation of camera devices for checking the location of the upper on the shoe last. The next part of the article deals with the analysis of the application of laser sensors in this task. The results point to the clear advantages of laser sensors in the inspection task of placing the uppers on the shoe’s last. The proposed method defined the resolution of laser scanners according to the type of scanned surface, where the resolution of point cloud ranged from 0.16 to 0.5 mm per point based on equations representing specific points approximated to polynomial regression in specific places, which are defined in this article. Next, two inspection systems were described, where one included further development in the field of automation and Industry 4.0 and with a high perspective of development into the future. The main aim of this work is to conduct analyses of sensory systems for inspection systems and their possibilities for further work mainly based on the resolution and quality of obtained data. For instance, dependency on scanning complex surfaces and the achieved resolution of scanned surfaces.

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Assessment of selected metrological properties of laser triangulation sensors

Cited by 37 publications

References 46 publications

Towards Metrology 4.0 in Dimensional Measurements

Towards Metrology 4.0 in Dimensional Measurements

Automatic Measurement of External Thread at the End of Sucker Rod Based on Machine Vision

Analysis of Laser Sensors and Camera Vision in the Shoe Position Inspection System

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