Jan 1, 2018
Development of a resonant excitation coil of AC magnetometer for evaluation of magnetic fluid
Journal of Telecommunication, Electronic and Computer Engineering
- ,
- ,
- ,
- ,
- ,
- ,
- Volume
- 10
- Number
- 1-2
- First page
- 127
- Last page
- 130
- Language
- Publishing type
- Research paper (scientific journal)
© 2018 Universiti Teknikal Malaysia Melaka. All rights reserved. A high-homogeneity excitation coil with a resonant circuit for AC magnetometer is developed. A solenoid coil is designed to produce a high-homogeneity and strong excitation field using a resonant frequency method. The solenoid coil is fabricated with a Litz wire to suppress the increase of AC resistance due to the skin and proximity effects in the high-frequency region. The Litz wire is composed of 60 strands of copper wires with 0.1-mm diameter. The resonant frequency method is applied to cancel the reactance component by connecting the excitation coil with a capacitor in a series configuration. To enable excitation of the magnetic field at multiple frequencies, a resonant circuit consists of multiple values of resonant capacitors is constructed. The fabricated excitation coil showed a high homogeneity of the magnetic field and was able to maintain a constant resonant current up to 32.5 kHz.
- Link information
- ID information
-
- ISSN : 2180-1843
- eISSN : 2289-8131
- SCOPUS ID : 85045130137