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dc.contributor.authorChua, Eric Shan Qin.
dc.description.abstractThis project presents a magnetic field sensor based on magnetic fluid film. A magneto-optical material, the magnetic fluid film is employed to directly alter and interact with parameters of light. Together with the use of a polarization maintaining optical fiber and external magnetic field strength, the effects of birefringence and phase shift differences in a polarimetric optical setup is investigated. In addition, the thickness of the magnetic fluid film and its effect on the magnetic field sensor is discussed as well. Transmission wavelengths dips of visibility or extinction ratio of 40 dBm were obtained by using the optical spectrum analyzer and broadband amplified spontaneous emission light source. The transmission wavelength dips, coupled with varying external magnetic field strength of 0 Oe to 2000 Oe, shifted from 1nm to 3.3nm with increasing thickness of the magnetic fluid film from 20μm to 60μm. This project also demonstrates the validity of the proposed magnetic field sensor by changing the output spectrum of the transmission wavelength dips to an intensity sensor, verifying the dynamic range of this novel magnetic sensor based on the birefringence properties of the magnetic fluid film.en_US
dc.format.extent56 p.en_US
dc.rightsNanyang Technological University
dc.subjectDRNTU::Science::Chemistry::Physical chemistry::Magnetochemistryen_US
dc.titleMagnetic field sensor based on magnetic fluid.en_US
dc.typeFinal Year Project (FYP)en_US
dc.contributor.supervisorChan Chi Chiuen_US
dc.contributor.schoolSchool of Chemical and Biomedical Engineeringen_US
dc.description.degreeBachelor of Engineering (Chemical and Biomolecular Engineering)en_US
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Appears in Collections:SCBE Student Reports (FYP/IA/PA/PI)
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