Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511730
F. Dudkin, V. Pronenko, V. Korepanov
The operation of flux-gate magnetometers (FGMs) onboard moving carriers faces several difficulties that limit their application in geophysics. Specifically, when FGM is used onboard UAV (such as drone) it has essential space rotation. As we show in the paper, it may create interference up to the value overcoming the useful signal. We show that the obstacles limiting the FGM sensitivity threshold are the FGM axes non-orthogonality and its sensors transformation factor non-uniformity. A possible solution of this problem is proposed: not to try to make these values as small as possible, but to determine them after production at thorough calibration and then use them at data processing. A new method to determine the real FGM channels mutual orthogonality deflection and transformation factors non-identity with given precision is described and experimentally confirmed.
{"title":"Fluxgate Magnetometers Application Onboard UAVs Features","authors":"F. Dudkin, V. Pronenko, V. Korepanov","doi":"10.1109/MetroAeroSpace51421.2021.9511730","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511730","url":null,"abstract":"The operation of flux-gate magnetometers (FGMs) onboard moving carriers faces several difficulties that limit their application in geophysics. Specifically, when FGM is used onboard UAV (such as drone) it has essential space rotation. As we show in the paper, it may create interference up to the value overcoming the useful signal. We show that the obstacles limiting the FGM sensitivity threshold are the FGM axes non-orthogonality and its sensors transformation factor non-uniformity. A possible solution of this problem is proposed: not to try to make these values as small as possible, but to determine them after production at thorough calibration and then use them at data processing. A new method to determine the real FGM channels mutual orthogonality deflection and transformation factors non-identity with given precision is described and experimentally confirmed.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116965985","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511703
Gianluca Ciattaglia, Giulia Temperini, S. Spinsante, E. Gambi
With the progressive reduction of cost, in the market it is possible to find a very large assortment of Unmanned Aerial Vehicles (UAV) that are used in general for non-warlike activities. Unfortunately, it may happen that malicious subjects use these objects to cause damage or inconvenience, then the availability of solutions to predict these situations can be crucial for alerting the population and saving lives. In this work, we present a technique to identify drones from their micro-Doppler features, by analyzing their variations during the flight. The characterization of the features and how they evolve in time is useful to predict dangerous situations and classify the drone type, with the help of Machine Learning techniques.
{"title":"mmWave Radar Features Extraction of Drones for Machine Learning Classification","authors":"Gianluca Ciattaglia, Giulia Temperini, S. Spinsante, E. Gambi","doi":"10.1109/MetroAeroSpace51421.2021.9511703","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511703","url":null,"abstract":"With the progressive reduction of cost, in the market it is possible to find a very large assortment of Unmanned Aerial Vehicles (UAV) that are used in general for non-warlike activities. Unfortunately, it may happen that malicious subjects use these objects to cause damage or inconvenience, then the availability of solutions to predict these situations can be crucial for alerting the population and saving lives. In this work, we present a technique to identify drones from their micro-Doppler features, by analyzing their variations during the flight. The characterization of the features and how they evolve in time is useful to predict dangerous situations and classify the drone type, with the help of Machine Learning techniques.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115020726","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511677
A. Brunello, L. Olivieri, G. Sarego, A. Valmorbida, Enrico Lungavia, E. Lorenzini
In the last several years, the need for an alternative to chemical propulsive systems for low-orbit satellite deorbiting has become increasingly evident; a Tethered System can provide adequate thrust or drag without the complications of combustions and with a minimal impact on the environment. In this context, the authors are part of a team that is studying various tether applications and building a prototype of an electrodynamic tether system. The goal of this paper is to characterize tether materials in order to find valid solutions for future space tether missions. Mission requirements (e.g., the survivability to hypervelocity impacts and the capability to damp oscillations in electrodynamic tethers) influence the choice of tether parameters such as cross section geometry (round wires or tapes), materials, length, and cross section sizes. The determination of the elastic characteristics and damping coefficients is carried out through a campaign of experiments conducted with both direct stress/strain measurements and the laboratory facility SPAcecRraft Testbed for Autonomous proximity operatioNs experimentS (SPARTANS) on a low friction table at the University of Padova. In the latter case, the stiffness and damping of a flexible line were verified by applying different tensile load profiles and then measuring the tether-line dynamic response in terms of tension spike amplitude, oscillation decay, and estimation of the damping coefficient.
{"title":"Space tethers: parameters reconstructions and tests","authors":"A. Brunello, L. Olivieri, G. Sarego, A. Valmorbida, Enrico Lungavia, E. Lorenzini","doi":"10.1109/MetroAeroSpace51421.2021.9511677","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511677","url":null,"abstract":"In the last several years, the need for an alternative to chemical propulsive systems for low-orbit satellite deorbiting has become increasingly evident; a Tethered System can provide adequate thrust or drag without the complications of combustions and with a minimal impact on the environment. In this context, the authors are part of a team that is studying various tether applications and building a prototype of an electrodynamic tether system. The goal of this paper is to characterize tether materials in order to find valid solutions for future space tether missions. Mission requirements (e.g., the survivability to hypervelocity impacts and the capability to damp oscillations in electrodynamic tethers) influence the choice of tether parameters such as cross section geometry (round wires or tapes), materials, length, and cross section sizes. The determination of the elastic characteristics and damping coefficients is carried out through a campaign of experiments conducted with both direct stress/strain measurements and the laboratory facility SPAcecRraft Testbed for Autonomous proximity operatioNs experimentS (SPARTANS) on a low friction table at the University of Padova. In the latter case, the stiffness and damping of a flexible line were verified by applying different tensile load profiles and then measuring the tether-line dynamic response in terms of tension spike amplitude, oscillation decay, and estimation of the damping coefficient.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123452759","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511708
P. Russo, A. Langella, G. Leone, G. D'Angelo, P. Ferraro, V. Pagliarulo
In aerospace, it is of great interest to identify safe and low-cost manufacturing procedures to guarantee reliable and functional products. In this perspective, 3D printing is a fast and low-cost innovative technique to produce fiber-reinforced polymer matrix composites. This new technology, among other, forms short fiber composite that can be used as a shim material to fill voids left by manufacturing defects. The purpose of this work is to characterize reinforced composites developed for these applications and obtained with the innovative 3D printing technique.
{"title":"Mechanical and morphological characterization of 3D-printed carbonPEEK composite for avionic shimming","authors":"P. Russo, A. Langella, G. Leone, G. D'Angelo, P. Ferraro, V. Pagliarulo","doi":"10.1109/MetroAeroSpace51421.2021.9511708","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511708","url":null,"abstract":"In aerospace, it is of great interest to identify safe and low-cost manufacturing procedures to guarantee reliable and functional products. In this perspective, 3D printing is a fast and low-cost innovative technique to produce fiber-reinforced polymer matrix composites. This new technology, among other, forms short fiber composite that can be used as a shim material to fill voids left by manufacturing defects. The purpose of this work is to characterize reinforced composites developed for these applications and obtained with the innovative 3D printing technique.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123523025","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511776
Y. Somov, S. Butyrin, S. Somov
A method for ensuring the survivability of a spacecraft attitude control system with minimally redundant cluster of the flywheels and magnetic actuator at the faults of any flywheels are presented. The results of computer simulation were obtained and it was found if any two of the four flywheels according to the General Electric scheme fail, digital control of the flywheel cluster and magnetic drive allows the Earth-observing satellite to maintain observation of given terrestrial targets.
{"title":"Ensuring the Survivability of Spacecraft Control System at Critical Failures in Flywheel Cluster","authors":"Y. Somov, S. Butyrin, S. Somov","doi":"10.1109/MetroAeroSpace51421.2021.9511776","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511776","url":null,"abstract":"A method for ensuring the survivability of a spacecraft attitude control system with minimally redundant cluster of the flywheels and magnetic actuator at the faults of any flywheels are presented. The results of computer simulation were obtained and it was found if any two of the four flywheels according to the General Electric scheme fail, digital control of the flywheel cluster and magnetic drive allows the Earth-observing satellite to maintain observation of given terrestrial targets.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123690530","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511746
M. Brzozowski, Mariusz Pakowski, Zbigniew Jakielaszek, M. Michalczewski, Mirosław Myszka
The article reviews selected issues associated with the preparation, organization and execution of field training targeting the practical functional verification of passive sensors installed on-board various land, sea and air platforms. The APART-GAS trials combined the training of two NATO research task groups (RTG) operating within the SET Panel: SET-242 on passive radiolocation on mobile platforms (Passive Coherent Locators on Mobile Platforms) and SET-258 on multiband active and passive radars used in various military scenarios (DMPAR - Deployable Multiband Passive Active Radar Deployment and Assessment in Military Scenarios). The specificity of passive sensors, as well as the wide range of their applications resulted in numerous complications at the stage of developing and executing test scenarios conducted with the use of different aircraft types, including vertical launch rockets, water vessels and land vehicles. The article discusses successively the activities supporting the Warsaw University of Technology implemented by the Air Force Institute of Technology (AFIT). in the field of installing the sensors on individual platform, aircraft flight planning and their coordination in the course of the trials. AFIT performed the issues regarding the recording and imaging radiolocation data from the sensors participating in the trials and coupled within an Unclassified Radar Network (URN).
{"title":"Challenges of preparation and realization of combined field tests of passive and active radar sensors on an example APART-GAS 2019 trials","authors":"M. Brzozowski, Mariusz Pakowski, Zbigniew Jakielaszek, M. Michalczewski, Mirosław Myszka","doi":"10.1109/MetroAeroSpace51421.2021.9511746","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511746","url":null,"abstract":"The article reviews selected issues associated with the preparation, organization and execution of field training targeting the practical functional verification of passive sensors installed on-board various land, sea and air platforms. The APART-GAS trials combined the training of two NATO research task groups (RTG) operating within the SET Panel: SET-242 on passive radiolocation on mobile platforms (Passive Coherent Locators on Mobile Platforms) and SET-258 on multiband active and passive radars used in various military scenarios (DMPAR - Deployable Multiband Passive Active Radar Deployment and Assessment in Military Scenarios). The specificity of passive sensors, as well as the wide range of their applications resulted in numerous complications at the stage of developing and executing test scenarios conducted with the use of different aircraft types, including vertical launch rockets, water vessels and land vehicles. The article discusses successively the activities supporting the Warsaw University of Technology implemented by the Air Force Institute of Technology (AFIT). in the field of installing the sensors on individual platform, aircraft flight planning and their coordination in the course of the trials. AFIT performed the issues regarding the recording and imaging radiolocation data from the sensors participating in the trials and coupled within an Unclassified Radar Network (URN).","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"5 4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123729326","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511717
G. Caposciutti, G. Bandini, M. Marracci, A. Buffi, B. Tellini
Carbon fiber reinforced polymers (CFRPs) are particularly suitable for aerospace applications due to their specific mechanical properties. During their service life, these materials can suffer damage, sometimes difficult to detect, which may compromise their mechanical performances. The variation of the electrical properties of CFRPs is one of the strategies that can be used to monitor such damage. However, multiple variables contribute to this variation. This paper presents a preliminary analysis of the electrical impedance dependence on temperature and on damages outbreaks. The measurements are performed in controlled environment on a wide range of temperature and frequency. In some cases, the measured data show an impedance change due to the damage presence, which is of similar entity with respect to the variations caused by temperature. This may lead to misleading interpretations of impedance measurements in the absence of additional information. Hence the need of a proper temperature monitoring to possibly use electrical impedance spectroscopy analysis is required to unequivocally determine the health status of CFRPs.
{"title":"Temperature Effects and Damage Detection on CFRP through Electrical Impedance Spectroscopy","authors":"G. Caposciutti, G. Bandini, M. Marracci, A. Buffi, B. Tellini","doi":"10.1109/MetroAeroSpace51421.2021.9511717","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511717","url":null,"abstract":"Carbon fiber reinforced polymers (CFRPs) are particularly suitable for aerospace applications due to their specific mechanical properties. During their service life, these materials can suffer damage, sometimes difficult to detect, which may compromise their mechanical performances. The variation of the electrical properties of CFRPs is one of the strategies that can be used to monitor such damage. However, multiple variables contribute to this variation. This paper presents a preliminary analysis of the electrical impedance dependence on temperature and on damages outbreaks. The measurements are performed in controlled environment on a wide range of temperature and frequency. In some cases, the measured data show an impedance change due to the damage presence, which is of similar entity with respect to the variations caused by temperature. This may lead to misleading interpretations of impedance measurements in the absence of additional information. Hence the need of a proper temperature monitoring to possibly use electrical impedance spectroscopy analysis is required to unequivocally determine the health status of CFRPs.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122877146","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511654
Pierpaolo Palmieri, Matteo Gaidano, Mario Troise, Laura Salamina, Andrea Ruggeri, S. Mauro
The interest in soft systems for space missions represents a growing trend in recent years. The development of inflatable robots, combined with the improvement of deployment mechanisms, allows to build novel lightweight and deployable robotic manipulators. In several space applications, the use of soft robots could minimize bulk and mass, reducing space mission costs. The main challenges in soft robotics are the control of the system and the exertion of high forces. In this manuscript, the concept of an inflatable manipulator with two inflatable links and three degrees of freedom is proposed. After a review about the possible materials to be used for the inflatable parts, the robot mechanical structure, the deploying strategy and the pneumatic line are presented. Then, an elastostatic approach is proposed to model the robot with the aim of developing its control. The last section shows preliminary experimental tests performed on the link prototype with the purpose to evaluate a static characterization in relation to the supplied pressure. Results suggest the validity of the adopted approach to model the system and clarify the pressure influence about the system performances. The study puts the basis for the development of the first prototype of the robotic system.
{"title":"A deployable and inflatable robotic arm concept for aerospace applications","authors":"Pierpaolo Palmieri, Matteo Gaidano, Mario Troise, Laura Salamina, Andrea Ruggeri, S. Mauro","doi":"10.1109/MetroAeroSpace51421.2021.9511654","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511654","url":null,"abstract":"The interest in soft systems for space missions represents a growing trend in recent years. The development of inflatable robots, combined with the improvement of deployment mechanisms, allows to build novel lightweight and deployable robotic manipulators. In several space applications, the use of soft robots could minimize bulk and mass, reducing space mission costs. The main challenges in soft robotics are the control of the system and the exertion of high forces. In this manuscript, the concept of an inflatable manipulator with two inflatable links and three degrees of freedom is proposed. After a review about the possible materials to be used for the inflatable parts, the robot mechanical structure, the deploying strategy and the pneumatic line are presented. Then, an elastostatic approach is proposed to model the robot with the aim of developing its control. The last section shows preliminary experimental tests performed on the link prototype with the purpose to evaluate a static characterization in relation to the supplied pressure. Results suggest the validity of the adopted approach to model the system and clarify the pressure influence about the system performances. The study puts the basis for the development of the first prototype of the robotic system.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125529469","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511779
R. Marani, D. Palumbo, M. Attolico, G. Bono, U. Galietti, T. D’orazio
In the context of aerospace metrology, reliable inspections of production yields are mandatory for clear safety reasons. If defects are fastly detected and, above all, segmented, further economical benefits may emerge since repairing strategies can be set up. Given this scenario, this paper presents an automatic methodology to process data from lock-in thermography inspections of composite laminates. Thermal analysis works on area scans of the target surfaces and, consequently, leads to complete information of the whole structure in a relatively short time. A deep learning network has been trained to analyze amplitude and phase maps to detect and segment defective inclusions. The reliability of this analysis is typically undermined by actual experimental issues, due to the homogeneity of the input excitation. For this reason, this study proposes a preliminary processing to manage the inhomogeneity of the input excitation, which typically adds a non-negligible bias to the amplitude and phase maps. The improved reliability has been proven through experiments performed on actual samples, coming from aerospace production lines. The outcomes of these experiments have proven a final per-pixel accuracy of 84.38% in the segmentation of buried defects.
{"title":"Improved Deep Learning for Defect Segmentation in Composite Laminates Inspected by Lock-in Thermography","authors":"R. Marani, D. Palumbo, M. Attolico, G. Bono, U. Galietti, T. D’orazio","doi":"10.1109/MetroAeroSpace51421.2021.9511779","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511779","url":null,"abstract":"In the context of aerospace metrology, reliable inspections of production yields are mandatory for clear safety reasons. If defects are fastly detected and, above all, segmented, further economical benefits may emerge since repairing strategies can be set up. Given this scenario, this paper presents an automatic methodology to process data from lock-in thermography inspections of composite laminates. Thermal analysis works on area scans of the target surfaces and, consequently, leads to complete information of the whole structure in a relatively short time. A deep learning network has been trained to analyze amplitude and phase maps to detect and segment defective inclusions. The reliability of this analysis is typically undermined by actual experimental issues, due to the homogeneity of the input excitation. For this reason, this study proposes a preliminary processing to manage the inhomogeneity of the input excitation, which typically adds a non-negligible bias to the amplitude and phase maps. The improved reliability has been proven through experiments performed on actual samples, coming from aerospace production lines. The outcomes of these experiments have proven a final per-pixel accuracy of 84.38% in the segmentation of buried defects.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125540227","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}
Pub Date : 2021-06-23DOI: 10.1109/MetroAeroSpace51421.2021.9511709
2021 IEEE International Workshop on Metrology for AeroSpace.
2021年IEEE航空航天计量国际研讨会。
{"title":"2021 IEEE International Workshop on Metrology for AeroSpace","authors":"","doi":"10.1109/MetroAeroSpace51421.2021.9511709","DOIUrl":"https://doi.org/10.1109/MetroAeroSpace51421.2021.9511709","url":null,"abstract":"2021 IEEE International Workshop on Metrology for AeroSpace.","PeriodicalId":236783,"journal":{"name":"2021 IEEE 8th International Workshop on Metrology for AeroSpace (MetroAeroSpace)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130546886","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}
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