Abstract
The paper presents the design, fabrication, and experimental validation of a new non-contact resonance-based measurement system to measure the thickness of ferromagnetic sheets and their alloys. The measurement system consists of a cantilever beam as a resonating structure with electromagnetic excitation and piezoelectric detection. The system measures the unknown thickness of a ferromagnetic sheet by measuring the resonance frequency of the cantilever beam resonator. The resonator vibrates at different resonance frequencies depending on the thickness of the ferromagnetic sheet. The electromagnet and the piezoelectric patch are connected with appropriate electronic circuitry for resonance excitation and detection of the resonator. The electronic circuitry will automatically track the resonance frequency of the measurement system for a variation in the ferromagnetic sheet thickness. A complete analytical model of the measurement system was developed and evaluated through experimentation. The analytical and experimental results are found to be in good agreement. The proposed measurement system is simple in design, compact, low cost, and its frequency output decrease linearly with an increase in thickness of the ferromagnetic sheets.
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References
Kim YH, Song SJ, Lee JK (2003) Simultaneous measurements of the ultrasonic wave velocity and thickness of a solid plate made from one side of the plate. Meas Sci Technol 14:13–16
Hsu DK, Hughes MS (1992) Simultaneous ultrasonic velocity and sample thickness measurement and application in composites. J Acoust Soc Am 92:669–675
Bramanti M (1992) A nondestructive diagnostic method based on swept frequency ultrasound transmission-reflection measurements. IEEE Trans Instrum Meas 41:490–494
Blitz J, Simpson G (1996) Ultrasonic Methods of Non-Destructive Testing, 1st edn. Chapman & Hall, London
Krautkrame J, Krautkrämer H (1990) Ultrasonic Testing of Materials, 4th edn. Springer Verlag, New York
Renaldas R, Rymantas K (2008) Ultrasonic thickness measurement of multilayered aluminum foam precursor material. IEEE Trans Instrum Meas 57:2846–2855
Kang BK, Kim SD, Lee SJ (1998) Magnetic flux sensor for control of thick steel plates. Sens Actuator A Phys 65:203–208
Nakane H, Sohara Y, Omori S (1991) Measuring the thickness of a thin-film conductor using solenoid coils. IEEE Trans Instrum Meas 40:429–432
Wei L, Yang Y, Kang Z, Zhihua F (2017) A thickness measurement system for metal films based on eddy current method with phase detection. IEEE Trans Ind Electron 64(5):3940–3949
Hongbo W, Wei L, Zhihua F (2015) Noncontact thickness measurement for metal films using eddy current sensors immune to distance variation. IEEE Trans Instrum Meas 64(9):2557–2564
Wei L, Hongbo W, Zhihua F (2016) Non-contact online thickness measurement system for metal films based on eddy current sensing with distance tracking technique. Rev Sci Instrum 87:045005
Luqman A, Cong W, Fan-Yi M, Yu-Chen W, Xiao T, Kishor Kumar A, Meng Z (2021) Simultaneous measurement of thickness and permittivity using microwave resonator-based planar sensor. Int J RF Microw. 1002/mmce.22794.
Zhen L, Zhaozong M, Changcheng W, Constantinos S, Zhijun C, Ping W, Andrew G (2022) A new microwave cavity resonator sensor for measuring coating thickness on carbon fiber composites. NDT & E Int J 126:102584
Suresh K, Uma G, Varun Kumar U, Santhosh Kumar BVMP, Umapathy M (2011) Piezoelectric based resonant mass sensor using phase measurement. Measurement J 44:320–325
Sujan Y, Uma G, Umapathy M (2017) Design and Modelling of a micro resonant pressure sensor. Microsyst Technol 23(5):1285–1293
Santhosh Kumar BVMP, Suresh K, Varun Kumar U, Uma G, Umapathy M (2012) Resonance based DC current sensor. Measurement J 45:369–374
Suresh K, Uma G, Umapathy M (2011) A new resonance-based method for the measurement of non-magnetic conducting sheet thickness. IEEE Trans Instrum Meas 60:3892–3897
Sujan Y, Vasuki B, Uma G, Ezhilarasi D, Suresh K (2012) Thickness sensor for ferromagnetic sheets. In: IEEE Sixth International Proceedings of Conference on Sensing Technology (ICST-2012), Kolkata, India (2012). https://doi.org/10.1109/ICSensT.2012.6461797.
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The authors acknowledge BITS Pilani internal contingency grant and workshop fabrication facilities in the development of the proposed measurement system.
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Yenuganti, S., Paliwal, S. & Peparthi, M. Non-Contact Thickness Measurement System Using a Smart Cantilever Beam. Exp Tech 47, 1161–1167 (2023). https://doi.org/10.1007/s40799-022-00621-1
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DOI: https://doi.org/10.1007/s40799-022-00621-1