{"title":"An Intelligent Compound Fault Diagnosis Method Using One-Dimensional Deep Convolutional Neural Network With Multi-Label Classifier","authors":"Ruyi Huang, Weihua Li, Lingli Cui","doi":"10.1109/I2MTC.2019.8827030","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827030","url":null,"abstract":"Intelligent compound fault diagnosis technology is significantly important to ensure that rotating machinery works in high-efficiency, security and reliability, and it remains a great challenge in this field. A lot of traditional intelligent fault diagnosis techniques have been developed with certain achievements in recent years, however, these methods inherently suffer from the obvious shortcoming that the traditional classifier only outputs one label for a testing sample of compound fault, rather than multiple labels. Consequently, it cannot classify a compound fault as two or more single faults. To solve this problem, a novel method named 1D DCNN-MLC, One-Dimensional Deep Convolutional Neural Network (1D DCNN) with a Multi-Label Classifier (MLC), is proposed for intelligent compound fault identification. 1D DCNN is employed to learn the representations from the vibration raw signals effectively. MLC is then designed to discriminate and predict the single or compound fault by outputting single or multiple labels. The proposed method is validated by a gearbox dataset with bearing fault, gear fault and compound fault. The experimental results demonstrate that the proposed method can effectively detect and identify compound fault. To the best knowledge of the authors, this work is the first effort to identify compound fault for rotating machinery via outputs multiple labels.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123990380","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}
G. D. Leo, C. Liguori, A. Ruggiero, D. Russo, P. Sommella
{"title":"Accurate measurement of Kinetic Friction Coefficient by using two types of tribometer","authors":"G. D. Leo, C. Liguori, A. Ruggiero, D. Russo, P. Sommella","doi":"10.1109/I2MTC.2019.8827060","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827060","url":null,"abstract":"Tribological tests are adopted to estimate the kinetic friction coefficient of the material of interest according to the ASTM standard. Typically, for the measurement process, several replicas as well as a post-processing data treatment are necessary to take into account the observed casual variability of the measurand. The paper describes a statistical approach for both Time and Frequency Domain analysis, aiming to highlight the most significant time intervals during each test replica. Experimental activity has been carried out by performing multiple tests through two different tribometers (ball-on-flat and ball-on-disk configurations) in order to verify the improvement allowed by the authors’ proposal about the dry friction coefficient measurement in terms of both accuracy and reliability.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115847754","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}
Sebastian Haigh, J. Kulon, A. Partlow, P. Rogers, C. Gibson
{"title":"Mitigating the Effect of Obstacles in Narrowband Ultrasonic Localization Systems","authors":"Sebastian Haigh, J. Kulon, A. Partlow, P. Rogers, C. Gibson","doi":"10.1109/I2MTC.2019.8827132","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827132","url":null,"abstract":"This paper develops a method for mitigating the negative effects of obstacles in narrowband, time division multiple access (TDMA), ultrasonic localization systems. The method builds upon the robust Bayesian classifier for ultrasonic localization (RoBCUL) algorithm which utilizes an iteratively reweighted least squares (IRLS) scheme. This algorithm has the advantage of low computational cost but loses performance in the presence of obstacles. The improved version of the RoBCUL algorithm presented in this paper uses a statistical test applied after each iteration of the regression, using a weighted residual vector calculated from the weight matrix and residual vector. The technique was tested using experimental data with its performance being quantified by its ability to correctly classify all the signals received during a single TDMA cycle. The extended version performed significantly better in all obstacle scenarios than the original, correctly classifying 100% of TDMA cycles in the scenarios with no obstacles, 97.6% with one obstacle, and 89.0% with two obstacles.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127172951","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}
Yuan Gao, M. Ghasr, Kuang P. Ying, M. Dvorsky, A. Boots, R. Zoughi, D. Palmer
{"title":"Millimeter Wave Differential Probe System for Surface Crack Detection in Painted Aircraft Fuselage","authors":"Yuan Gao, M. Ghasr, Kuang P. Ying, M. Dvorsky, A. Boots, R. Zoughi, D. Palmer","doi":"10.1109/I2MTC.2019.8826970","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8826970","url":null,"abstract":"In this paper, a W-band (75-110 GHz) differential probe system is designed for detecting tight cracks near fasteners and under paint in aircraft fuselage. First, the operation principle of differential probe and the design of the system is introduced, followed by numerical electromagnetic simulations to verify the capability of designed probe. Simulation results show that the designed probe is capable of detecting tight surface crack extending by as much as 1.27 mm beyond a fastener hole, and it is not adversely influenced by the paint coating layer. Finally, the designed probe was mounted on a 3-axis scanner to form an automated scanning crack detection system. The fabricated system was used on many different crack specimens, and the results show that it successfully detected the 2 mm long surface crack (extending beyond a fastener hole) on a lap joint metallic plate with up to 0.1 mm-thick paint. Furthermore, the aperture offset and non-uniform paint clump effects were examined in the simulations, and corroborated in the measurement.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"247 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133601458","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}
{"title":"Locating and Imaging Impact Damage with an Integrated System of PZT and Eddy Current Probe","authors":"Bo Feng, D. Pasadas, A. Ribeiro, H. Ramos","doi":"10.1109/I2MTC.2019.8826902","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8826902","url":null,"abstract":"This paper presents an integrated system, which combines piezoelectric transducers and eddy current probes, for structural health monitoring of Carbon Fiber Reinforced Polymer (CFRP) materials. The piezoelectric transducers work in the passive mode (waiting for potential impacts) to measure the guided wave generated when the impact occurs. The relative arrival time of the guided wave at the piezoelectric transducers was used to estimate the location of impact based on geometrical relationships. This way an approximate location of the impact damage was obtained by the piezoelectric transducers. However, the result lacks information about the condition of the material after impact. Therefore, eddy current testing (ECT) was carried out to perform a scanning around the location estimated by piezoelectric transducers to evaluate the condition of the CFRP structure. The ECT scans present 2D images of the damaged region.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132329535","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}
{"title":"Adaptive Rate Signal Acquisition and Denoising For Efficient Mobile Systems","authors":"S. Qaisar, Saeed Niazi, D. Dallet","doi":"10.1109/I2MTC.2019.8827070","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827070","url":null,"abstract":"The signal acquisition segmentation and de-noising are elementary processes, required in digital signal processing. The classical acquisition and denoising are time-invariant, the acquisition frequency and the de-noising module parameters remain fixed. It causes a pointless augmentation in the system processing load, particularly for the alternating signals. In this framework, adaptive rate signal acquisition andfiltering method is devised. It is founded on a threshold traversing sampling and can correlate the acquisition rate, segmentation length and the denoising moduleparameters in accordance with the input signal temporal disparities. It renders an adaptation in the system processing activity according to the incoming signal temporal variations. The suggested system performance is evaluated for the speech signals. A performance comparison is also made with the traditional counterparts. Results demonstrate a radical computational gain, of the devised method over the traditional one, along with a similar output quality. It confirms the suitability of integrating the suggested solution in modern mobile systems in order to enhance their computational efficiency and power consumption.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115647520","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}
{"title":"Series-connected lithium-ion battery pack health modeling with cell inconsistency evaluation","authors":"Yuchen Song, Datong Liu, Yu Peng","doi":"10.1109/I2MTC.2019.8827097","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827097","url":null,"abstract":"The lithium-ion battery has become the prevalent technology to store and serve electric power. The state of health (SOH) for a battery cell directly influences the working safety and reliability of the host system. Moreover, since the battery cells are series connected for higher terminal voltage, the cell inconsistency will also impact the performance of the whole battery pack. In order to quantitatively evaluate the inconsistency of lithium-ion cells and represent the battery health state, this paper conducted a numerical study on inconsistency analysis and proposed a novel degradation feature for lithium-ion battery pack health state modeling. The charge cut-off voltage of each lithium-ion battery cell is utilized for battery cell inconsistency analysis according to the practical operating conditions. The normality test results prove that the inconsistency among lithium-ion battery cells is normal distributed. Furthermore, the correlation between the normal distribution parameters and battery pack performance degradation features are then quantitatively analyzed. The Spearman’s rank correlation coefficient is -0.88, which means the scale parameter of the normal distribution is negatively related with the battery pack performance degradation. Moreover, the experimental results also prove that with the battery pack performance degrades, the inconsistency among the battery cells is getting larger. The scale parameter in normal distribution is not only capable for cell inconsistency representation but also promising for series connected lithium-ion battery pack degradation evaluation.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124363518","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}
{"title":"Analysis of horizontal slug translational velocity based on the image processing technique","authors":"T. Xue, Qian Wang, Chenyang Li","doi":"10.1109/I2MTC.2019.8827088","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827088","url":null,"abstract":"Slug flow is a common flow regime that occurs in chemical industries, petroleum and power generation. The aim of this paper is to investigate the correlation between the slug bubble translational velocity and the air-liquid superficial velocity based on the development of a new image processing procedure. In this paper, the slug bubble contour and translational velocity were measured in the 15 mm inner diameter pipe. In order to observe the interfacial behavior of air-liquid, both of the liquid and air superficial velocity were set to $0.3 sim0.9 m/$s. The adopted image processing has succeeded to detach the dispersed bubble from the slug bubble tail, which overcome the challenge for the visualization of slug bubble. Moreover, the mechanisms of the disappearance of slug bubble tail are analyzed based on the interfacial behavior. Finally, the data results display that the slug translational velocity in experiment is lower than the model predicted velocity at the boundary of bubbly flow and slug flow.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123563372","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}
W. Luo, H. Dong, J. Ge, Huan Liu, Hengli Song, Cheng Zhang, Zhiwen Yuan, Jun Zhu, Haiyang Zhang
{"title":"Research on an omnidirectional proton precession magnetometer sensor based on solenoidal coils","authors":"W. Luo, H. Dong, J. Ge, Huan Liu, Hengli Song, Cheng Zhang, Zhiwen Yuan, Jun Zhu, Haiyang Zhang","doi":"10.1109/I2MTC.2019.8827001","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827001","url":null,"abstract":"The performance of the sensor determines one of the important factors in the measurement accuracy or uncertainty of the Proton Precession Magnetometer (PPM). Especially in mobile measurement application, the sensor’s orientation insensitivity and portability requirements are more stringent. In fact, sensors made of toroidal or cylindrical coils have many problems such as large volume and difficulty in winding, and thus the solenoidal coils are commonly used as PPM sensor coils and have excellent performance. However, when the aixs of solenoidal coil is the same as the direction of the magnetic field, the sensor cannot induce the NMR signal. Aiming at this problem, this paper proposes a simple omnidirectional PPM sensor with three solenoidal coils connected in series. The axial directions of the three solenoids intersect each other so that the sensor can induce signals in the direction of any geomagnetic field. This structure does not affect the polarization process and magnetization of the proton, but due to the axial crossing, the maximum induced signal amplitude is reduced compared to the sensor in which the coil axes are parallel to each other. Therefore, the relationship between the angle between the sensor coils and the sensitivity of the magnetic field orientation is analyzed. In order to improve the actual measurement accuracy, the design method of improving the SNR and anti-interference of the sensor is further studied. How to improve the coil structure, solve the signal loss problem, and improve the anti-interference ability of the sensor is one of the future research work. This paper aims to analyze the orientation sensitivity characteristics of an omnidirectional PPM sensor based on three solenoidal coils, which provides a new idea for sensor design in manual mobile measurement applications.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124634200","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}
Paolo Bellitti, E. Sardini, M. Serpelloni, A. D. Angelis, M. Dionigi, A. Moschitta, P. Carbone
{"title":"Development of a Wirelessly-Powered Wearable System for Finger Tracking","authors":"Paolo Bellitti, E. Sardini, M. Serpelloni, A. D. Angelis, M. Dionigi, A. Moschitta, P. Carbone","doi":"10.1109/I2MTC.2019.8827062","DOIUrl":"https://doi.org/10.1109/I2MTC.2019.8827062","url":null,"abstract":"In this paper, the development of a system capable of tracking finger motion is presented. The proposed wearable tracking unit is placed on the finger and it is wirelessly powered without using cables or batteries, thus enhancing freedom of movement. The system is comprised by two sections: a measurement unit and a wireless power transfer apparatus. The measurement unit consists of an electronic board able to measure, acquire and transmit sensors signals; a stretch sensor and an inertial measurement unit are integrated on the measurement unit. Furthermore, the wireless power transfer apparatus is implemented by means of inductively-coupled resonant circuits. A prototype of the developed system is characterized by experimental tests. Results show the feasibility of the proposed approach. The measuring system can track finger movement with a sample rate of 30 Hz, while the wireless power transfer system demonstrates the capability of transferring 67.72 mW, necessary to power the measurement unit, at a maximum distance of about 8 cm.","PeriodicalId":132588,"journal":{"name":"2019 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)","volume":"101 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122036573","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}