The aim of the research is to analyze the possibility of the development and realization of a common laser triangulation sensor arrangement-based probe for the measurement of slots and bore sides with the help of a mirror attachment. The analysis shows the feasibility and limits of the solution with respect to the maximum measurement depth and surface distance measurement working range. We propose two possible solutions: one for maximizing the ratio of the measurement depth to the measured bore size and the second for maximizing the total depth, intended for the measurement of slots and large bore sizes. We analyzed measurement error sources. We found that the errors related to the reflection mirror misalignment can be fully compensated. We proved the validity of the proposed solution with the realization of a commercial laser triangulation sensor-based probe and demonstrated a slot side and a bore side surface distance scanning measurement. The probe working range was assessed with regard to the obscuration effect of optical beams.
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http://dx.doi.org/10.3390/s21206911 | DOI Listing |
Sensors (Basel)
December 2024
Faculty of Mechanical Engineering, Czech Technical University in Prague, Technická 4, 166 07 Praha, Czech Republic.
We propose a new commercial laser triangulation sensor modification to enable the measurement of slots or bores side distance. The study showed the possibility of extending the sensor depth range for a slot or bore side distance measurement using a bypass of the illumination laser beam compared to a simple single mirror attachment to the sensor probe. We derived relations allowing for evaluation of the modified sensor side measurement range in desired depth based on the sensor parameters and the reflective mirror size and position.
View Article and Find Full Text PDFInt J Pharm X
December 2024
Heinrich Heine University Düsseldorf, Faculty of Mathematics and Natural Sciences, Institute of Pharmaceutics and Biopharmaceutics, Universitaetsstrasse 1, 40225 Düsseldorf, Germany.
Elastic recovery ( ) has been investigated and discussed extensively in the field of tableting. However, until now only limited data is available regarding in roll compaction. Therefore, a previously established in-line measurement technique was rolled out to further investigate the kinetics of in roll compaction and the effects of specific compaction force ( ) and roll speed ( ).
View Article and Find Full Text PDFAdvancements in remote sensing and autonomous vehicle technologies made lidars equally important for unmanned objects alongside cameras. Therefore, precise 3D lidar imaging and point cloud generation have become important subjects. Although existing coherent lidar technologies provide precise imaging results, the spectral linewidth of the laser sources becomes a key limitation over long distances as it defines the maximum detection range.
View Article and Find Full Text PDFSensors (Basel)
October 2024
Nevomo IoT, 03-828 Warsaw, Poland.
The automation of rail track inspection addresses key issues in railway transportation, notably reducing maintenance costs and improving safety. However, it presents numerous technical challenges, including sensor selection, calibration, data acquisition, defect detection, and storage. This paper introduces a compression method tailored for laser triangulation scanners, which are crucial for scanning the entire rail track, including the rails, rail fasteners, sleepers, and ballast, and capturing rail profiles for geometry measurement.
View Article and Find Full Text PDFJ Dent
December 2024
Department of Prosthodontics, School and Hospital of Stomatology, Jilin University, Changchun 130021, China. Electronic address:
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