Industrial Metrology最新文献_第2页

Creepage Distance Estimation of Hairpin Stators Using 3D Feature Extraction 基于三维特征提取的发夹定子爬电距离估算

Industrial Metrology Pub Date : 2023-05-08 DOI: 10.3390/metrology3020010

Niklas Grambow, L. Hinz, C. Bonk, J. Krüger, E. Reithmeier

{"title":"Creepage Distance Estimation of Hairpin Stators Using 3D Feature Extraction","authors":"Niklas Grambow, L. Hinz, C. Bonk, J. Krüger, E. Reithmeier","doi":"10.3390/metrology3020010","DOIUrl":"https://doi.org/10.3390/metrology3020010","url":null,"abstract":"The increasing demand for electric drives challenges conventional powertrain designs and requires new technologies to increase production efficiency. Hairpin stator manufacturing technology enables full automation, and quality control within the process is particularly important for increasing the process capacity, avoiding rejects and for safety-related aspects. Due to the complex, free-form geometries of hairpin stators and the required short inspection times, inline reconstruction and accurate quantification of relevant features is of particular importance. In this study, we propose a novel method to estimate the creepage distance, a feature that is crucial regarding the safety standards of hairpin stators and that could be determined neither automatically nor accurately until now. The data acquisition is based on fringe projection profilometry and a robot positioning system for a highly complete surface reconstruction. After alignment, the wire pairs are density-based clustered so that computations can be parallelized for each cluster, and an analysis of partial geometries is enabled. In several further steps, stripping edges are segmented automatically using a novel approach of spatially asymmetric windowed local surface normal variation, and the creepage distances are subsequently estimated using a geodesic path algorithm. Finally, the approach is examined and discussed for an entire stator, and a methodology is presented that enables the identification of implausible estimated creepage distances.","PeriodicalId":100666,"journal":{"name":"Industrial Metrology","volume":"26 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83577096","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Measurement Techniques for Three-Dimensional Metrology of High Aspect Ratio Internal Features—A Review 高纵横比内部特征三维测量技术综述

Industrial Metrology Pub Date : 2023-04-17 DOI: 10.3390/metrology3020009

T. Hovell, J. Petzing, Weng Guo, Connor Gill, L. Justham, N. Lohse, P. Kinnell

引用次数: 0

Metrological Evaluation of the Compatibility of Two Different Digital Density Meter Adjustment Methods 两种数字密度计调整方法兼容性的计量评价

Industrial Metrology Pub Date : 2023-04-10 DOI: 10.3390/metrology3020008

Eugênio Benevides dos Santos, E. C. Oliveira

引用次数: 0

Estimation of Measurement Uncertainty of the Real-Time Location System (RTLS) with Ultra-Wideband (UWB) Technology 基于超宽带技术的实时定位系统测量不确定度估计

Industrial Metrology Pub Date : 2023-03-24 DOI: 10.3390/metrology3020007

A. Krummenauer, V. Gomes, V. C. Nardelli

{"title":"Estimation of Measurement Uncertainty of the Real-Time Location System (RTLS) with Ultra-Wideband (UWB) Technology","authors":"A. Krummenauer, V. Gomes, V. C. Nardelli","doi":"10.3390/metrology3020007","DOIUrl":"https://doi.org/10.3390/metrology3020007","url":null,"abstract":"The need to control the real-time location of assets is increasingly relevant worldwide. The Ultra-wideband (UWB) technology is an IoT solution for real-time locating systems (RTLS). The location of the asset is obtained by the signal exchange between a wireless tag (asset) and fixed anchors. The tag interacts with the fixed anchors, defining its position through the distances obtained by trilateration. This data is sent to the server through the gateway. It is well-known that this process has several sources of errors. However, the measurement uncertainty assessment of UWB technology is an important topic regarding its scope of use. This paper presents a task-specific measurement uncertainty evaluation for the UWB positioning system, according to the ISO GUM. It aims to propose a method to support decision-making regarding the possible uses of UWB technology. The position provided by the UWB is compared with reference points using Cartesian coordinates that are measured with a total station, providing metrological reliability. Using the information from the estimated uncertainty, one can define the minimum tolerance interval associated with UWB technology for a given use. A case study demonstrates the method.","PeriodicalId":100666,"journal":{"name":"Industrial Metrology","volume":"44 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87769290","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Characteristic Function of the Tsallis q-Gaussian and Its Applications in Measurement and Metrology Tsallis q-高斯特征函数及其在测量计量中的应用

Industrial Metrology Pub Date : 2023-03-15 DOI: 10.3390/metrology3020012

Viktor Witkovsk'y

引用次数: 2

Time Synchronization Sensitivity in SV-based PMU Consistency Assessment 基于sv的PMU一致性评估中的时间同步敏感性

Industrial Metrology Pub Date : 2023-03-09 DOI: 10.3390/metrology3010006

M. Agustoni, P. Castello, G. Frigo, Giacomo Gallus

{"title":"Time Synchronization Sensitivity in SV-based PMU Consistency Assessment","authors":"M. Agustoni, P. Castello, G. Frigo, Giacomo Gallus","doi":"10.3390/metrology3010006","DOIUrl":"https://doi.org/10.3390/metrology3010006","url":null,"abstract":"Modern power systems are rapidly transitioning towards a fully digital substation paradigm. Based on the IEC 61850, a common communication protocol between the different intelligent electronic devices (IEDs) promises a significant enhancement in terms of efficiency and interoperability. In this context, synchronization represents a crucial aspect as it allows us to rigorously compare measurements taken at the same time in different locations. In this paper, we consider a measurement chain for synchrophasor estimation based on digital inputs: an instrument transformer, a stand-alone merging unit (SAMU) and a phasor measurement unit (PMU). Both the SAMU and the PMU are equipped with independent synchronization sources. In case the SAMU loses its synchronization, the final measurement result would be considered invalid until a complete restoration of the SAMU synchronization status. In view of a longer continuity of operation, this paper proposes an alternative approach to evaluate the PMU Time Quality in real-time. This approach allows for continuing crucial monitoring and control operations, such as state estimation and fault detection, even in the presence of temporary loss of synchronization. A characterization, in both simulated and experimental conditions, proves the potential and reliability of the proposed approach. In the considered test case, the come-back within a sufficient time quality is correctly detected in less than 200 s, while waiting for the full restoration of the SAMU time reference would cost several minutes.","PeriodicalId":100666,"journal":{"name":"Industrial Metrology","volume":"40 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88261625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel Low-Speed Measuring Method Based on Sine and Square Wave Signals 基于正弦波和方波信号的低速测量新方法

Industrial Metrology Pub Date : 2023-02-20 DOI: 10.3390/metrology3010005

Q. Song, Jigou Liu, Yang Liu

引用次数: 0

Acknowledgment to the Reviewers of Metrology in 2022 向2022年计量学审稿人致谢

Industrial Metrology Pub Date : 2023-02-15 DOI: 10.3390/metrology3010004

引用次数: 0

Using Ontologies to Create Machine-Actionable Datasets: Two Case Studies 使用本体创建机器可操作的数据集:两个案例研究

Industrial Metrology Pub Date : 2023-02-03 DOI: 10.3390/metrology3010003

J. Hippolyte, M. Romanchikova, Maurizio Bevilacqua, Paul Duncan, Samuel E. Hunt, Federico Grasso Toro, Anne-Sophie Piette, Julia Neumann

{"title":"Using Ontologies to Create Machine-Actionable Datasets: Two Case Studies","authors":"J. Hippolyte, M. Romanchikova, Maurizio Bevilacqua, Paul Duncan, Samuel E. Hunt, Federico Grasso Toro, Anne-Sophie Piette, Julia Neumann","doi":"10.3390/metrology3010003","DOIUrl":"https://doi.org/10.3390/metrology3010003","url":null,"abstract":"Achieving the highest levels of compliance with the FAIR (findable, accessible, interoperable, reusable) principles for scientific data management and stewardship requires machine-actionable semantic representations of data and metadata. Human and machine interpretation and reuse of measurement datasets rely on metrological information that is often specified inconsistently or cannot be inferred automatically, while several ontologies to capture the metrological information are available, practical implementation examples are few. This work aims to close this gap by discussing how standardised measurement data and metadata could be presented using semantic web technologies. The examples provided in this paper are machine-actionable descriptions of Earth observation and bathymetry measurement datasets, based on two ontologies of quantities and units of measurement selected for their prominence in the semantic web. The selected ontologies demonstrated a good coverage of the concepts related to quantities, dimensions, and individual units as well as systems of units, but showed variations and gaps in the coverage, completeness and traceability of other metrology concept representations such as standard uncertainty, expanded uncertainty, combined uncertainty, coverage factor, probability distribution, etc. These results highlight the need for both (I) user-friendly tools for semantic representations of measurement datasets and (II) the establishment of good practices within each scientific community. Further work will consequently investigate how to support ontology modelling for measurement uncertainty and associated concepts.","PeriodicalId":100666,"journal":{"name":"Industrial Metrology","volume":"14 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84277783","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

3D Model-Based Large-Volume Metrology Supporting Smart Manufacturing and Digital Twin Concepts 基于3D模型的大容量计量支持智能制造和数字孪生概念

Industrial Metrology Pub Date : 2023-01-18 DOI: 10.3390/metrology3010002

R. Lindqvist, D. Strand, M. Nilsson, Victor Collins, Johan Torstensson, J. Kressin, D. Spensieri, A. Archenti

{"title":"3D Model-Based Large-Volume Metrology Supporting Smart Manufacturing and Digital Twin Concepts","authors":"R. Lindqvist, D. Strand, M. Nilsson, Victor Collins, Johan Torstensson, J. Kressin, D. Spensieri, A. Archenti","doi":"10.3390/metrology3010002","DOIUrl":"https://doi.org/10.3390/metrology3010002","url":null,"abstract":"New automated laser radar measurement systems at the Saab Inc. West Lafayette, USA, facility will make airframe assembly of the aft body for the new eT7-A aircraft a quicker, more cost-efficient process. Digital twin concepts realized through simulation and off-line programming show advantageous results when studying future state scenarios or investigating how a current large-volume dimensional metrology system acts and behaves. The aim of this exploration has been to examine how to facilitate the design and programming of automated laser radar concepts by means of novel simulation-based software. High-speed computing algorithms efficiently solve tasks and sequence problems related to many statistical combinatorial possibilities in calculations. However, this approach requires accurate and reliable models and digital twins that are continuously updated with real world data and information. In this paper, the main contributions are to create procedures to define the dimensional metrology workflow at Saab and to model and simulate the laser radar process, enhancing and tailoring existing offline programming software by specific new functionalities. A case study conducted at Saab Aeronautics premises in Linköping acted as a clinical laboratory to generate our research findings. The exploratory work indicates that a reliable simulation-based development method can be used advantageously in the early-stage design layout of automated dimensional metrology systems to verify and guarantee the line-of-sight of, e.g., a laser light path and its allowed inclinations to a specific geometrical feature to be measured, extracted, and evaluated.","PeriodicalId":100666,"journal":{"name":"Industrial Metrology","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88302254","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0