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Vol. 150, No. 3, March 2013, pp. 66-71

 

Bullet

 

Effect of Design Geometry on the Performance Characteristics of Linear Variable Differential Transformers

 

1 Mohammad KILANI, 2 Sinan TAIFOUR and 3 Lutfi AL-SHARIF

1 Department of Mechatronics Engineering, The University of Jordan, Amman 11942, Jordan

Tel.: +962 6 5355000, ext. 23025

2 Technische Universität München, Arcisstrasse 21, 80333 Munich, Germany

Tel.: +49 157 785 62559

3 Department of Mechatronics Engineering, The University of Jordan, Amman 11942, Jordan

Tel.: +962 6 5355000, ext. 22993

E-mail: mkilani77@yahoo.com, sinan@taifour.com, lal-sharif@theiet.org

 

Received: 29 November 2012   /Accepted: 19 March 2013   /Published: 29 March 2013

Digital Sensors and Sensor Sysstems

 

Abstract: The effect of design geometry on the output voltage, linearity and sensitivity of linear variable differential transformers (LVDTs) is presented. The effect of varying six geometric design parameters, including primary coil length, secondary coil length, inner and outer coil radii, and the length and radius of the core, on the transfer characteristics of LVDT is investigated using Finite element simulations. Output voltage vs. core displacement figures are used to determine the effect of the parameters investigated on the stroke and sensitivity.

 

Keywords: Linear variable differential transformer, Transducer, Sensor, Displacement, Sensitivity, Stroke, Finite element modeling

 

 

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