Design, Development and Performance Evaluation of Eddy Current Displacement Sensor Based Pressure Sensor with Target Temperature Compensation

  • K. Gobi DRDO-Defence Research Development Laboratory, Hyderabad
  • B. Kannapiran Kalasalingam University, Tamilnadu
  • D. Devaraj Kalasalingam University, Tamilnadu
  • K. Valarmathi Electronics and Communication Engineering, P.S.R.Engineering College, Tamilnadu
Keywords: Eddy current principle, Non-contact transduction, Piecewise linearisation, Calibration, Harsh environment

Abstract

In Aerospace applications, pressure measurement plays a vital role as it serves as one of the input to onboard controller to aid decision- making on initiating or terminating some of the critical events. In this paper, the design aspects of pressure sensor using linear eddy current displacement sensor (ECDS) are presented along with its performance evaluation. The static calibration is carried out to select the best position of ECDS in the proposed pressure sensor. The effect of target temperature on sensor output is presented with test results to aid compensation. A compensation algorithm is developed to minimise the error due to target temperature. The developed compensation algorithm is validated using thermal calibration. The designed pressure sensor is calibrated using Arson dynamic pressure calibrator to evaluate its bandwidth. The calibration results are analysed to aid future sensor design towards improvement of accuracy, bandwidth and miniaturisation.

Author Biographies

K. Gobi, DRDO-Defence Research Development Laboratory, Hyderabad
Mr K. Gobi received the BTech (Electronics Engineering) and ME (Instrumentation Engineering) from Madras Institute of Technology, Anna University, Chennai, India, in 1991 and 1997, respectively. Presently he is working as a Scientist in DRDO-Defence Research Development Laboratory, Hyderabad, India. His current research interests include : Development of non-contact transduction based pressure sensors and non-intrusive type temperature sensors for harsh environment to meet the aerospace applications.
B. Kannapiran, Kalasalingam University, Tamilnadu
Dr B. Kannapiran received his ME (Applied Electronics) from Madurai Kamaraj University, in 2002, and PhD (Information and Communication Engineering) from Anna University, Chennai, in 2013. Currently he is an Associate Professor in the Department of Instrumentation and Control Engineering, Kalasalingam University, Tamilnadu, India. His research interests include : Soft computing, fault diagnosis, biomedical instrumentation, wireless networks.
D. Devaraj, Kalasalingam University, Tamilnadu
Dr D. Devaraj is completed BE and ME (Electrical & Electronics Engineering and Power System Engineering) from Thiagarajar College of Engineering, Madurai, in 1992 and 1994, respectively and PhD from IIT Madras, in 2001. Presently he is a Senior Professor in the Department of Electrical and Electronics Engineering, Kalasalingam University, Tamilnadu, India. His research interest includes : Power system security, voltage stability and evolutionary algorithm.
K. Valarmathi, Electronics and Communication Engineering, P.S.R.Engineering College, Tamilnadu
Dr K. Valarmathi received her MTech (Process Control and Instrumentation) from Bhardhidasan University, Trichy, in 2000 and PhD from Anna University, Chennai, in 2008. Presently she is working as a Professor in the Department of Electronics and Communication Engineering, P.S.R. Engineering College, Savalpatti, Tamilnadu, India. Her research interest includes : Intelligent techniques of real time systems, sensor technology, green house effect and computational intelligence in process industries.
Published
2018-03-13
How to Cite
Gobi, K., Kannapiran, B., Devaraj, D., & Valarmathi, K. (2018). Design, Development and Performance Evaluation of Eddy Current Displacement Sensor Based Pressure Sensor with Target Temperature Compensation. Defence Science Journal, 68(2), 203-209. https://doi.org/10.14429/dsj.68.11765
Section
Electronics & Communication Systems