Please use this identifier to cite or link to this item:
Title: Electromagnetic navigation linear displacement transducer based on magnetic field gradient technique
Authors: Zhang, M
Or, SW 
Wang, S
Chang, FK
Keywords: Counter-wound coils
Electromagnetic navigation
Linear displacement transducer
Magnetic field gradients
Issue Date: 2015
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on magnetics, 2015, v. 51, no. 11, 7116575 How to cite?
Journal: IEEE transactions on magnetics 
Abstract: A linear displacement transducer (LDT) for electromagnetic navigation is developed based on the sensing of magnetic field gradients in a pair of counterwound coils. The operation and linear response conditions of the LDT are theoretically described by electromagnetic formulations, numerically analyzed by COMSOL Multiphysics finite-element analysis, and experimentally verified in a 1/10-scaled inspection vehicle-overhead cable model. A high sensitivity of 51 V/cm and a small nonlinearity of 3.7% are achieved in the LDT prototype by setting an optimal height-to-baseline h/L ratio of 1/ 8 in a practical linear response condition with the transverse displacement d constraint of }50% of L. The proposed LDT can overcome the discontinuous response and nonlinearity problems intrinsic in traditional magnetic field-based LDTs, thereby providing a continuous displacement (movement) feedback with an accuracy of within several millimeters.
ISSN: 0018-9464
EISSN: 1941-0069
DOI: 10.1109/TMAG.2015.2440472
Appears in Collections:Journal/Magazine Article

View full-text via PolyU eLinks SFX Query
Show full item record

Page view(s)

Last Week
Last month
Checked on Aug 20, 2017

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.