{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,14]],"date-time":"2026-07-14T23:48:00Z","timestamp":1784072880072,"version":"3.55.0"},"reference-count":98,"publisher":"MDPI AG","issue":"15","license":[{"start":{"date-parts":[[2024,8,1]],"date-time":"2024-08-01T00:00:00Z","timestamp":1722470400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Natural Sciences and Engineering Council of Canada 494 (NSERC)","award":["496439-2017"],"award-info":[{"award-number":["496439-2017"]}]},{"name":"CREATE-oN DuTy Program","award":["496439-2017"],"award-info":[{"award-number":["496439-2017"]}]},{"name":"Canada Research 495 Chair in Multipolar Infrared Vision (MIVIM)","award":["496439-2017"],"award-info":[{"award-number":["496439-2017"]}]},{"name":"Canada Foundation for Innovation","award":["496439-2017"],"award-info":[{"award-number":["496439-2017"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In contrast to conventional non-destructive testing (NDT) and non-destructive evaluation (NDE) methodologies, including radiography, ultrasound, and eddy current analysis, coplanar capacitive sensing technique emerges as a novel and promising avenue within the field. This paper endeavors to elucidate the efficacy of coplanar capacitive sensing, also referred to as capacitive imaging (CI), within the realm of NDT. Leveraging extant scholarly discourse, this review offers a comprehensive and methodical examination of the coplanar capacitive technique, encompassing its fundamental principles, factors influencing sensor efficacy, and diverse applications for defect identification across various NDT domains. Furthermore, this review deliberates on extant challenges and anticipates future trajectories for the technique. The manifold advantages inherent to coplanar capacitive sensing vis-\u00e0-vis traditional NDT methodologies not only afford its versatility in application but also underscore its potential for pioneering advancements in forthcoming applications.<\/jats:p>","DOI":"10.3390\/s24154984","type":"journal-article","created":{"date-parts":[[2024,8,1]],"date-time":"2024-08-01T11:34:20Z","timestamp":1722512060000},"page":"4984","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Advancements in and Research on Coplanar Capacitive Sensing Techniques for Non-Destructive Testing and Evaluation: A State-of-the-Art Review"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0158-0839","authenticated-orcid":false,"given":"Farima","family":"Abdollahi-Mamoudan","sequence":"first","affiliation":[{"name":"Department of Electrical and Computer Engineering, Universit\u00e9 Laval, 1065 Avenue de la M\u00e9decine, Quebec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0198-7439","authenticated-orcid":false,"given":"Clemente","family":"Ibarra-Castanedo","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Universit\u00e9 Laval, 1065 Avenue de la M\u00e9decine, Quebec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8777-2008","authenticated-orcid":false,"given":"Xavier P. V.","family":"Maldague","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering, Universit\u00e9 Laval, 1065 Avenue de la M\u00e9decine, Quebec, QC G1V 0A6, Canada"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,8,1]]},"reference":[{"key":"ref_1","unstructured":"Tianming, C. (2012). Capacitive sensors for measuring complex permittivity of planar and cylindrical structures. Iowa, 204."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1016\/j.prostr.2016.02.008","article-title":"A review of non-destructive testing methods of composite materials","volume":"1","author":"Gholizadeh","year":"2016","journal-title":"Procedia Struct. Integr."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1848","DOI":"10.1063\/1.3114183","article-title":"Comparison of detection capability for acoustic thermography, visual inspection and fluorescent penetrant inspection on gas turbine components","volume":"Volume 1096","author":"Guo","year":"2009","journal-title":"AIP Conference Proceedings"},{"key":"ref_4","unstructured":"See, J.E. (2024, July 26). Visual Inspection: A Review of the Literature, Available online: https:\/\/www.osti.gov\/servlets\/purl\/1055636."},{"key":"ref_5","first-page":"7","article-title":"Selecting a nondestructive testing method: Visual inspection","volume":"1","author":"Matzkanin","year":"2006","journal-title":"Ammtiac Q."},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"106227","DOI":"10.1016\/j.ultras.2020.106227","article-title":"A review of ultrasonic testing applications in additive manufacturing: Defect evaluation, material characterization, and process control","volume":"108","author":"Honarvar","year":"2020","journal-title":"Ultrasonics"},{"key":"ref_7","first-page":"274","article-title":"Applications of ultrasonic techniques in oil and gas pipeline industries: A review","volume":"5","author":"Alobaidi","year":"2015","journal-title":"Am. J. Oper. Res."},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1943","DOI":"10.1177\/1475921719831370","article-title":"Real world application of angular scan pulse-echo ultrasonic propagation imager for damage tolerance evaluation of full-scale composite fuselage","volume":"18","author":"Lee","year":"2019","journal-title":"Struct. Health Monit."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"111","DOI":"10.1016\/j.ndteint.2017.08.004","article-title":"Ultrasonic detection and sizing of compressed cracks in glass-and carbon-fibre reinforced plastic composites","volume":"92","author":"Ibrahim","year":"2017","journal-title":"NDT&E Int."},{"key":"ref_10","doi-asserted-by":"crossref","unstructured":"Kalhor, D., Ebrahimi, S., Tokime, R.B., Mamoudan, F.A., B\u00e9langer, Y., Mercier, A., and Maldague, X. (2021). Cavity detection in steel-pipe culverts using infrared thermography. Appl. Sci., 11.","DOI":"10.3390\/app11094051"},{"key":"ref_11","first-page":"591","article-title":"Applications of infrared thermography in nondestructive evaluation","volume":"2000","author":"Maldague","year":"2000","journal-title":"Trends Opt. Nondestruct. Test."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s10921-015-0331-7","article-title":"Thermal (IR) and other NDT techniques for improved material inspection","volume":"35","author":"Balageas","year":"2016","journal-title":"J. Nondestruct. Eval."},{"key":"ref_13","unstructured":"Kalhor, D., Ebrahimi, S., Tokime, R.B., Mamoudan, F.A., B\u00e9langer, Y., Mercier, A., and Maldague, X. (2020, January 25\u201326). Infrared thermography for culvert inspection. Proceedings of the 3rd International Symposium on Structural Health Monitoring and Nondestructive Testing, Quebeq, QC, Canada. Available online: https:\/\/www.ndt.net\/article\/shmndt2020\/papers\/SHM-NDT_2020_paper_14.pdf."},{"key":"ref_14","first-page":"131","article-title":"Active infrared thermography technique for the non destructive testing of composite material","volume":"1","author":"Sultan","year":"2012","journal-title":"Int. J. Mech. Eng. Robot. Res."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s10921-021-00749-x","article-title":"Advancements in radiographic evaluation through the migration into NDE 4.0","volume":"40","author":"Saboonchi","year":"2021","journal-title":"J. Nondestruct. Eval."},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Menaria, T., and Kumar, M. (2019, January 26\u201328). Review on radiographic imaging modalities for non-destructive testing and evaluation (NDT & E). Proceedings of the International Conference on Sustainable Computing in Science, Technology and Management (SUSCOM), Amity University Rajasthan, Jaipur, India.","DOI":"10.2139\/ssrn.3356362"},{"key":"ref_17","first-page":"298","article-title":"Non-destructive testing application of radiography and ultrasound for wire and arc additive manufacturing","volume":"21","author":"Lopez","year":"2018","journal-title":"Addit. Manuf."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"041501","DOI":"10.1115\/1.4023253","article-title":"Eddy current nondestructive testing for carbon fiber-reinforced composites","volume":"135","author":"Koyama","year":"2013","journal-title":"J. Press. Vessel. Technol."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"500","DOI":"10.1007\/s10033-017-0122-4","article-title":"Pulsed eddy current non-destructive testing and evaluation: A review","volume":"30","author":"Sophian","year":"2017","journal-title":"Chin. J. Mech. Eng."},{"key":"ref_20","doi-asserted-by":"crossref","unstructured":"Farag, H.E., Toyserkani, E., and Khamesee, M.B. (2022). Non-Destructive Testing Using Eddy Current Sensors for Defect Detection in Additively Manufactured Titanium and Stainless-Steel Parts. Sensors, 22.","DOI":"10.3390\/s22145440"},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"\u0141ukaszuk, R., and Chady, T. (2023). Nondestructive Examination of Carbon Fiber-Reinforced Composites Using the Eddy Current Method. Materials, 16.","DOI":"10.3390\/ma16020506"},{"key":"ref_22","doi-asserted-by":"crossref","unstructured":"Su, Y., Dong, L., and Pei, Z. (2022). Non-destructive testing for cavity damages in automated machines based on acoustic emission tomography. Sensors, 22.","DOI":"10.3390\/s22062201"},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Oh, T.M., Kim, M.K., Lee, J.W., Kim, H., and Kim, M.J. (2020). Experimental investigation on effective distances of acoustic emission in concrete structures. Appl. Sci., 10.","DOI":"10.3390\/app10176051"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"964","DOI":"10.1016\/j.dental.2011.06.002","article-title":"Non-destructive examination of interfacial debonding using acoustic emission","volume":"27","author":"Li","year":"2011","journal-title":"Dent. Mater."},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Kumpati, R., Skarka, W., and Ontipuli, S.K. (2021). Current trends in integration of nondestructive testing methods for engineered materials testing. Sensors, 21.","DOI":"10.3390\/s21186175"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"161","DOI":"10.1016\/0143-8166(95)00020-8","article-title":"Shearography for non-destructive evaluation of composite structures","volume":"24","author":"Hung","year":"1996","journal-title":"Opt. Lasers Eng."},{"key":"ref_27","doi-asserted-by":"crossref","unstructured":"Zhao, Q., Dan, X., Sun, F., Wang, Y., Wu, S., and Yang, L. (2018). Digital shearography for NDT: Phase measurement technique and recent developments. Appl. Sci., 8.","DOI":"10.3390\/app8122662"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"260","DOI":"10.1016\/j.jmsy.2022.12.005","article-title":"Review on additive manufacturing and non-destructive testing","volume":"66","author":"Papaelias","year":"2023","journal-title":"J. Manuf. Syst."},{"key":"ref_29","doi-asserted-by":"crossref","unstructured":"Kot, P., Muradov, M., Gkantou, M., Kamaris, G.S., Hashim, K., and Yeboah, D. (2021). Recent advancements in non-destructive testing techniques for structural health monitoring. Appl. Sci., 11.","DOI":"10.3390\/app11062750"},{"key":"ref_30","first-page":"2286","article-title":"Advances in applications of Non-Destructive Testing (NDT): A review","volume":"8","author":"Gupta","year":"2022","journal-title":"Adv. Mater. Process. Technol."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Kumar, A., and Arnold, W. (2022). High resolution in non-destructive testing: A review. J. Appl. Phys., 132.","DOI":"10.1063\/5.0095328"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"4389","DOI":"10.1016\/j.ceramint.2020.10.065","article-title":"Review of non-destructive testing methods for defect detection of ceramics","volume":"47","author":"Zhao","year":"2021","journal-title":"Ceram. Int."},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Gupta, R., Mitchell, D., Blanche, J., Harper, S., Tang, W., Pancholi, K., Baines, L., Bucknall, D.G., and Flynn, D. (2021). A review of sensing technologies for non-destructive evaluation of structural composite materials. J. Compos. Sci., 5.","DOI":"10.3390\/jcs5120319"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Liu, Z., and Liu, H. (2017, January 22\u201325). Experimenting capacitive sensing technique for structural integrity assessment. Proceedings of the 2017 IEEE International Conference on Industrial Technology (ICIT), Toronto, ON, Canada.","DOI":"10.1109\/ICIT.2017.7915483"},{"key":"ref_35","first-page":"484","article-title":"Further investigations into capacitive imaging for NDE","volume":"51","author":"Yin","year":"2009","journal-title":"Insight-Non-Destr. Test. Cond. Monit."},{"key":"ref_36","unstructured":"Diamond, G.G., and Hutchins, D.A. (2006, January 25\u201329). A new capacitive imaging technique for NDT. Proceedings of the European Conference on NDT, Berlin, Germany."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"773","DOI":"10.1109\/19.863922","article-title":"A planar applicator for measuring surface dielectric constant of materials","volume":"49","author":"Bozzi","year":"2000","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1016\/j.ndteint.2007.06.004","article-title":"Use of capacitive and GPR techniques for the non-destructive evaluation of cover concrete","volume":"41","author":"Iaquinta","year":"2008","journal-title":"NDT&E Int."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"546","DOI":"10.3390\/s5120546","article-title":"Novel planar electromagnetic sensors: Modeling and performance evaluation","volume":"5","author":"Mukhopadhyay","year":"2005","journal-title":"Sensors"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1108\/02602281011010772","article-title":"Planar capacitive sensors\u2013designs and applications","volume":"30","author":"Hu","year":"2010","journal-title":"Sens. Rev."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"1282","DOI":"10.1016\/j.compositesb.2011.10.018","article-title":"Non-destructive evaluation of composite materials using a capacitive imaging technique","volume":"43","author":"Yin","year":"2012","journal-title":"Compos. Part B Eng."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"102588","DOI":"10.1016\/j.ndteint.2021.102588","article-title":"Influence of different design parameters on a coplanar capacitive sensor performance","volume":"126","author":"Savard","year":"2022","journal-title":"NDT&E Int."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"447","DOI":"10.3233\/JAE-131676","article-title":"Preliminary studies on the design principles of capacitive imaging probes for non-destructive evaluation","volume":"42","author":"Yin","year":"2013","journal-title":"Int. J. Appl. Electromagn. Mech."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"075702","DOI":"10.1088\/0957-0233\/19\/7\/075702","article-title":"Coplanar capacitance sensors for detecting water intrusion in composite structures","volume":"19","author":"Nassr","year":"2008","journal-title":"Meas. Sci. Technol."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"19635","DOI":"10.1109\/JSEN.2023.3294912","article-title":"Bayesian multiple linear regression and new modeling paradigm for structural deflection robust to data time lag and abnormal signal","volume":"23","author":"Zhao","year":"2023","journal-title":"IEEE Sens. J."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"808","DOI":"10.1109\/JPROC.2004.826603","article-title":"Interdigital sensors and transducers","volume":"92","author":"Mamishev","year":"2004","journal-title":"Proc. IEEE"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"2030","DOI":"10.4028\/www.scientific.net\/AMR.945-949.2030","article-title":"Research on coplanar capacitive sensor design for film thickness measurement","volume":"945","author":"Gong","year":"2014","journal-title":"Adv. Mater. Res."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/j.ndteint.2012.08.004","article-title":"Detecting surface features on conducting specimens through an insulation layer using a capacitive imaging technique","volume":"52","author":"Yin","year":"2012","journal-title":"NDT&E Int."},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1016\/j.compositesb.2017.01.016","article-title":"Capacitive imaging of impact damage in composite material","volume":"113","author":"Morozov","year":"2017","journal-title":"Compos. Part B Eng."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"8134","DOI":"10.1109\/JSEN.2022.3155974","article-title":"Multi-Electrode Coplanar Capacitive Probe with Various Arrangements for Non-Destructive Testing of Materials","volume":"22","author":"Savard","year":"2022","journal-title":"IEEE Sens. J."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"886","DOI":"10.1109\/41.735332","article-title":"Design and implementation of capacitive proximity sensor using microelectromechanical systems technology","volume":"45","author":"Chen","year":"1998","journal-title":"IEEE Trans. Ind. Electron."},{"key":"ref_52","doi-asserted-by":"crossref","unstructured":"Abdollahi-Mamoudan, F., Savard, S., Filleter, T., Ibarra-Castanedo, C., and PV Maldague, X. (2021). Numerical Simulation and Experimental Study of Capacitive Imaging Technique as a Nondestructive Testing Method. Appl. Sci., 11.","DOI":"10.20944\/preprints202103.0397.v1"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.ndteint.2013.07.001","article-title":"Studies of the factors influencing the imaging performance of the capacitive imaging technique","volume":"60","author":"Yin","year":"2013","journal-title":"NDT&E Int."},{"key":"ref_54","unstructured":"Reddy, J. (2019). Introduction to the Finite Element Method, McGraw-Hill Education."},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"839","DOI":"10.1515\/phys-2017-0099","article-title":"Inhomogeneous dielectrics: Conformal mapping and finite-element models","volume":"15","author":"Costamagna","year":"2017","journal-title":"Open Phys."},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"349","DOI":"10.1134\/1.1259300","article-title":"Modeling and calculation of the capacitance of a planar capacitor containing a ferroelectric thin film","volume":"44","author":"Vendik","year":"1999","journal-title":"Tech. Phys."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"05018013","DOI":"10.1061\/(ASCE)BE.1943-5592.0001327","article-title":"Behavior analysis and early warning of girder deflections of a steel-truss arch railway bridge under the effects of temperature and trains: Case study","volume":"24","author":"Zhao","year":"2019","journal-title":"J. Bridge Eng."},{"key":"ref_58","doi-asserted-by":"crossref","unstructured":"Bathe, K.J. (2007). Finite element method. Wiley Encyclopedia of Computer Science and Engineering, John Wiley & Sons, Inc.","DOI":"10.1002\/9780470050118.ecse159"},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"881","DOI":"10.1088\/0957-0233\/17\/4\/038","article-title":"A multi-electrode capacitance probe for phase detection in oil\u2013water separation processes: Design, modelling and validation","volume":"17","author":"Meng","year":"2006","journal-title":"Meas. Sci. Technol."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"121","DOI":"10.1016\/j.jmatprotec.2005.02.069","article-title":"Ultrasonic methods in diagnostics of epoxy\u2013glass composites","volume":"162","author":"Rojek","year":"2005","journal-title":"J. Mater. Process. Technol."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"114026","DOI":"10.1088\/0957-0233\/22\/11\/114026","article-title":"Design of a security screening system with a capacitance sensor matrix operating in single-electrode mode","volume":"22","author":"Chen","year":"2011","journal-title":"Meas. Sci. Technol."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s11220-020-00324-0","article-title":"Enhanced performance of spiral co-planar inter-digital capacitive structures for sensing applications","volume":"21","author":"Oommen","year":"2020","journal-title":"Sens. Imaging"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"434","DOI":"10.1109\/JSEN.2006.870161","article-title":"Design principles for multichannel fringing electric field sensors","volume":"6","author":"Li","year":"2006","journal-title":"IEEE Sens. J."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"408","DOI":"10.1109\/94.689431","article-title":"Optimization of multi-wavelength interdigital dielectrometry instrumentation and algorithms","volume":"5","author":"Mamishev","year":"1998","journal-title":"IEEE Trans. Dielectr. Electr. Insul."},{"key":"ref_65","unstructured":"Li, X., Larson, S., Zyuzin, A., and Mamishev, A. (2004, January 19\u201322). Design of multichannel fringing electric field sensors for imaging. Part I. General design principles. Proceedings of the Conference record of the 2004 IEEE International Symposium on Electrical Insulation, Indianapolis, IN, USA."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"1586","DOI":"10.1063\/1.4789231","article-title":"Design and characterization of planar capacitive imaging probe based on the measurement sensitivity distribution","volume":"Volume 1511","author":"Yin","year":"2013","journal-title":"AIP Conference Proceedings"},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1016\/j.ndteint.2013.04.001","article-title":"Investigations into the measurement sensitivity distribution of coplanar capacitive imaging probes","volume":"58","author":"Yin","year":"2013","journal-title":"NDT&E Int."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"102384","DOI":"10.1016\/j.ndteint.2020.102384","article-title":"Retrieving dimensions of surface features on conductors covered by insulation using the maximum variation ratio (MVR) in capacitive imaging","volume":"117","author":"Yin","year":"2021","journal-title":"NDT&E Int."},{"key":"ref_69","unstructured":"Imran, M., Glass, S., Fifield, L., and Ali, M. (2019, January 18\u201322). Parameter sensitivity of interdigital sensors for their design for cable insulation aging detection. Proceedings of the International Conference on Environmental Degradation of Materials in Nuclear Power Systems\u2014Water Reactors, Boston, MA, USA."},{"key":"ref_70","doi-asserted-by":"crossref","unstructured":"Ye, Y., Deng, J., Shen, S., Hou, Z., and Liu, Y. (2016). A novel method for proximity detection of moving targets using a large-scale planar capacitive sensor system. Sensors, 16.","DOI":"10.3390\/s16050699"},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1186\/s10033-019-0421-z","article-title":"Capacitive imaging technique for the inspection of composite sucker rod","volume":"32","author":"Wang","year":"2019","journal-title":"Chin. J. Mech. Eng."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"102261","DOI":"10.1016\/j.ndteint.2020.102261","article-title":"Capacitive sensing for the detection of tile misalignment in ceramic armor arrays","volume":"112","author":"Genest","year":"2020","journal-title":"NDT&E Int."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"11","DOI":"10.1080\/09349849009409483","article-title":"Characterization of capacitive array for NDE applications","volume":"2","author":"Shull","year":"1990","journal-title":"Res. Nondestruct. Eval."},{"key":"ref_74","first-page":"724","article-title":"Single-sided capacitive imaging for NDT","volume":"48","author":"Diamond","year":"2006","journal-title":"Insight-Non-Destr. Test. Cond. Monit."},{"key":"ref_75","doi-asserted-by":"crossref","unstructured":"Piyathilaka, L., Sooriyaarachchi, B., Kodagoda, S., and Thiyagarajan, K. (2019, January 18\u201320). Capacitive sensor based 2d subsurface imaging technology for non-destructive evaluation of building surfaces. Proceedings of the 2019 IEEE International Conference on Cybernetics and Intelligent Systems (CIS) and IEEE Conference on Robotics, Automation and Mechatronics (RAM), Bangkok, Thailand.","DOI":"10.1109\/CIS-RAM47153.2019.9095810"},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"102547","DOI":"10.1016\/j.ndteint.2021.102547","article-title":"Capacitive imaging using fused amplitude and phase information for improved defect detection","volume":"124","author":"Amato","year":"2021","journal-title":"NDT&E Int."},{"key":"ref_77","doi-asserted-by":"crossref","unstructured":"Huang, Y., Zhan, Z., and Bowler, N. (2017). Optimization of the coplanar interdigital capacitive sensor. AIP Conference Proceedings, AIP Publishing.","DOI":"10.1063\/1.4974695"},{"key":"ref_78","unstructured":"Abdollahi, F., Savard, S., Maldague, X., Filleter, T., and Bendada, A.H. (2021). Non-destructive testing of materials by capacitive sensing. Automot. Eng., 10, Available online: https:\/\/www.ndt.net\/article\/shmndt2020\/papers\/SHM-NDT_2020_paper_30.pdf."},{"key":"ref_79","doi-asserted-by":"crossref","unstructured":"Yin, X., Li, C., Li, Z., Li, W., and Chen, G. (2018). Lift-off effect for capacitive imaging sensors. Sensors, 18.","DOI":"10.3390\/s18124286"},{"key":"ref_80","doi-asserted-by":"crossref","first-page":"055014","DOI":"10.1088\/0964-1726\/18\/5\/055014","article-title":"Non-destructive evaluation of laminated composite plates using dielectrometry sensors","volume":"18","author":"Nassr","year":"2009","journal-title":"Smart Mater. Struct."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"423","DOI":"10.1016\/j.snb.2015.02.088","article-title":"Modelling the capacitance of multi-layer conductor-facing interdigitated electrode structures","volume":"213","author":"Blume","year":"2015","journal-title":"Sensors Actuators B Chem."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"7713","DOI":"10.1109\/JSEN.2020.3044979","article-title":"Capacitance-based technique for detection of reinforcement bars in concrete structures","volume":"21","author":"Abdelhafeez","year":"2020","journal-title":"IEEE Sens. J."},{"key":"ref_83","doi-asserted-by":"crossref","unstructured":"Li, C., Yin, X., Li, Z., Li, W., and Chen, G. (2018). Positive and negative variations in capacitive images for given defects under varying experimental conditions. AIP Conference Proceedings, AIP Publishing.","DOI":"10.1063\/1.5031661"},{"key":"ref_84","doi-asserted-by":"crossref","first-page":"22770","DOI":"10.1109\/ACCESS.2020.2970204","article-title":"Corrosion depth inversion method based on the lift-off effect of the capacitive imaging (CI) technique","volume":"8","author":"Yin","year":"2020","journal-title":"IEEE Access"},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"20190590","DOI":"10.1098\/rsta.2019.0590","article-title":"Capacitive imaging for adhesive bonds and quality evaluation","volume":"378","author":"Huang","year":"2020","journal-title":"Philos. Trans. R. Soc. A"},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"75","DOI":"10.1016\/j.sna.2016.11.025","article-title":"Novel capacitive proximity sensors for assessing the aging of composite insulators","volume":"253","author":"Jiao","year":"2017","journal-title":"Sens. Actuators A Phys."},{"key":"ref_87","doi-asserted-by":"crossref","unstructured":"Li, Z., Chen, G., Gu, Y., Wang, K., Li, W., and Yin, X. (2018). Further investigations into the capacitive imaging technique using a multi-electrode sensor. Appl. Sci., 8.","DOI":"10.3390\/app8112296"},{"key":"ref_88","doi-asserted-by":"crossref","first-page":"1500","DOI":"10.1063\/1.4865000","article-title":"Negative measurement sensitivity values of planar capacitive imaging probes","volume":"Volume 1581","author":"Yin","year":"2014","journal-title":"AIP Conference Proceedings"},{"key":"ref_89","doi-asserted-by":"crossref","unstructured":"Glass, S.W., Al-Imran, M.N., Fifield, L.S., and Ali, M. (2019, January 20\u201323). Simulation and experimental results of interdigital capacitor (IDC) sensors to monitor insulation degradation of cables. Proceedings of the 2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena (CEIDP), Richland, WA, USA.","DOI":"10.1109\/CEIDP47102.2019.9009659"},{"key":"ref_90","doi-asserted-by":"crossref","first-page":"1734","DOI":"10.1016\/j.cemconres.2010.08.015","article-title":"Non-destructive evaluation of concrete using a capacitive imaging technique: Preliminary modelling and experiments","volume":"40","author":"Yin","year":"2010","journal-title":"Cem. Concr. Res."},{"key":"ref_91","first-page":"V001T05A002","article-title":"Coplanar Capacitive Sensing as a New Electromagnetic Technique for Non-Destructive Evaluation","volume":"Volume 85529","author":"Savard","year":"2021","journal-title":"Quantitative Nondestructive Evaluation"},{"key":"ref_92","doi-asserted-by":"crossref","unstructured":"Abdollahi-Mamoudan, F., Ibarra-Castanedo, C., Filleter, T., and Maldague, X.P. (2022). Experimental Study and FEM Simulations for Detection of Rebars in Concrete Slabs by Coplanar Capacitive Sensing Technique. Sensors, 22.","DOI":"10.3390\/s22145400"},{"key":"ref_93","doi-asserted-by":"crossref","first-page":"111721","DOI":"10.1016\/j.measurement.2022.111721","article-title":"A new method and device for detecting rebars in concrete based on capacitance","volume":"202","author":"Han","year":"2022","journal-title":"Measurement"},{"key":"ref_94","doi-asserted-by":"crossref","first-page":"119506","DOI":"10.1016\/j.conbuildmat.2020.119506","article-title":"Development and application of a novel low-cost capacitive sensor for accurate rebar position detection","volume":"257","author":"Cheng","year":"2020","journal-title":"Constr. Build. Mater."},{"key":"ref_95","doi-asserted-by":"crossref","first-page":"752","DOI":"10.1063\/1.3591924","article-title":"Capacitive imaging technique for NDE","volume":"Volume 1335","author":"Yin","year":"2011","journal-title":"AIP Conference Proceedings"},{"key":"ref_96","doi-asserted-by":"crossref","first-page":"60","DOI":"10.3390\/magnetism1010006","article-title":"Fast and Robust Capacitive Imaging of Cylindrical Non-Metallic Media","volume":"1","author":"Raisa","year":"2021","journal-title":"Magnetism"},{"key":"ref_97","first-page":"2504516","article-title":"Mixed Skewness Probability Modeling and Extreme Value Predicting for Physical System Input\/Output Based on Full Bayesian Generalized Maximum-Likelihood Estimation","volume":"73","author":"Zhang","year":"2023","journal-title":"IEEE Trans. Instrum. Meas."},{"key":"ref_98","unstructured":"Cheng, B. (2008). Security Imaging Devices with Planar Capacitance Sensor Arrays. 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