《A Novel Method for Designing LVDT and its Comparison with Conventional Design》.pdf

SAS 2006 – IEEE Sensors Applications Symposium Houston, Texas USA, 7-9 February 2006 A Novel Method for Designing LVDT and its Comparison with Conventional Design Saroj Kumar Mishra, Ganapati Panda, Senior Member IEEE Department of Electronics Communication Engineering, National Institute of Technology, Rourkela, INDIA. E-mail: {sarojkumishra@yahoo.co.in, ganapati.panda@} Abstract – This paper presents a novel method of cascaded been proposed in [6-8]. The LVDT also shows similar functional link artificial neural (CFLANN) network model as an nonlinearity behaviour when the core is moved towards any adaptive nonlinearity compensator for Linear Variable one of the secondary coils. In the primary coil region Differential Transformer (LVDT) based sensing system. The (middle) of the characteristics, the core movement is almost functional link artificial neural network (FLANN) based linear. Because of that, the range of operation is limited to the nonlinearity compensator reported earlier involves high primary coil region only. Linearity enhancement of LVDT computational complexity and offers poor performance. The present paper proposes a less complexity and high accuracy has been proposed by using functional link ANN (FLANN) inverse model processor using a two stage FLANN model. based model [9]. In this model the number of nonlinear Keywords – Linear variable differential transformer, artificial expansions is high and hence more computational complexity neural network, f