DOI QR코드

DOI QR Code

Design and simulation of resonance based DC current sensor

  • Santhosh Kumar, B.V.M.P. (Department of Instrumentation and Control Engineering, National Institute of Technology) ;
  • Suresh, K. (Department of Instrumentation and Control Engineering, National Institute of Technology) ;
  • Varun Kumar, U. (Department of Instrumentation and Control Engineering, National Institute of Technology) ;
  • Uma, G. (Department of Instrumentation and Control Engineering, National Institute of Technology) ;
  • Umapathy, M. (Department of Instrumentation and Control Engineering, National Institute of Technology)
  • Received : 2010.04.22
  • Accepted : 2010.09.14
  • Published : 2010.09.25

Abstract

A novel resonance based proximity DC current sensor is proposed. The sensor consists of a piezo sensed and actuated cantilever beam with a permanent magnet mounted at its free end. When the sensor is placed in proximity to a wire carrying DC current, resonant frequency of the beam changes with change in current. This change in resonant frequency is used to determine the current through the wire. The structure is simulated in micro and meso scale using COMSOL Multi physics software and the sensor is found to be linear with good sensitivity.

Keywords

References

  1. Andle, Jeffrey C. and Ryszard, M. (2000), "Monolithic piezoelectric sensor (MPS) for sensing chemical, biochemical and physical measurands", United States Patent 6033852.
  2. Caliano, G., Lamberti, N., Iula, A. and Pappalardo, M. (1995), "A piezoelectric bimorph static pressure sensor", Sensor. Actuat. A - Phys., 46(1), 176-178. https://doi.org/10.1016/0924-4247(94)00885-L
  3. Challa, V.R., Prasad, M.G., Shi, Y. and Fisher, F.T. (2008), "A vibration energy harvesting device with bidirectional resonance frequency tenability", Smart Mater. Struct., IOP, 17, 015035(10).
  4. Franx, Cornelis (1984), "Temperature sensor and method using a single rotated quartz crystal", US Patent 4472656.
  5. Gehin, C., Teisseyre, Y. and Barthod, C. (2000), "Piezoelectric resonant sensor for static force measurement", Sensor. Actuat. A - Phys., 84(1-2), 65-69. https://doi.org/10.1016/S0924-4247(99)00359-3
  6. Lim, C.W., Li, C. and Yu, J.L. (2009), "The effects of stiffness strengthening nonlocal stress and axial tension on free vibration of cantilever nanobeams", Interact. Multiscale Mech., 2(3), 223-233. https://doi.org/10.12989/imm.2009.2.3.223
  7. Lin, Y.C. and Ma, C.C. (2008), "Resonant vibration of plates in fluid", Interact. Multiscale Mech., 1(2), 177-190. https://doi.org/10.12989/imm.2008.1.2.177
  8. Muralikrishna, G. and Rajanna, K. (2004), "Tactile sensor based on piezoelectric Resonance", IEEE Sens. J., 4(5), 691-697. https://doi.org/10.1109/JSEN.2004.833505
  9. Neshkova, M., Petrova, R. and Petrov, V. (1996), "Piezoelectric quartz crystal humidity sensor using chemically modified nitrated polystyrene as water sorbing coating", Anal. Chem. Acta, 332(1), 93-103. https://doi.org/10.1016/0003-2670(96)00119-5
  10. Shih, W.Y., Li, X., Gu, H., Shih, W.H. and Aksay, I.A. (2001), "Simultaneous liquid viscosity and density determination with piezoelectric unimorph cantilevers", J. Appl. Phys., 89(2), 1497-1505. https://doi.org/10.1063/1.1287606
  11. Uma, G., Umapathy, M., Baby Vidya, L., Maya, M., Sophiya, T. and Tamilarasi, K. (2008), "Design and analysis of resonant based gas sensor SAS-2008", IEEE Sensor Applications Symposium, Atlanta GA, February.
  12. Uma, G., Umapathy, M., Maria Josephine, A., Aishwarya, S. and Suresh, K. (2008), "Design of microcontroller based resonant sensor with piezoelectric excitation and detection", Instrum. Sci.Technol., 36(4), 367-374. https://doi.org/10.1080/10739140802151390
  13. Xiao, C., Zhao, L., Asada, T., Odendaal, W.G. and van Wyk, J.D. (2003), "An overview of integratable current sensor technologies", Proc. 38th IAS Ann. Meeting, October.
  14. Zhang, C. and Vetelino, J.F. (2003), "Chemical sensors based on electrically sensitive quartz resonators", Sensor. Actuat. B - Chem., 91(1-3), 320-325. https://doi.org/10.1016/S0925-4005(03)00094-7
  15. Ziegler, S. Woodward R.C., Iu, H.H.C. and Borle, L.J. (2009), "Current sensing techniques: a review", IEEE Sens. J., 9(4), 354-376. https://doi.org/10.1109/JSEN.2009.2013914