Next Article in Journal
Micro Cantilever Movement Detection with an Amorphous Silicon Array of Position Sensitive Detectors
Previous Article in Journal
A Novel Sensing Method and Sensing Algorithm Development for a Ubiquitous Network
Sensors 2010, 10(9), 8161-8172; doi:10.3390/s100908161

Applications of Ferro-Nanofluid on a Micro-Transformer

, 1
, 1,* , 2
 and 3
Received: 8 June 2010 / Revised: 20 August 2010 / Accepted: 20 August 2010 / Published: 31 August 2010
(This article belongs to the Section Physical Sensors)
View Full-Text   |   Download PDF [1333 KB, uploaded 21 June 2014]   |   Browse Figures
Abstract: An on-chip transformer with a ferrofluid magnetic core has been developed and tested. The transformer consists of solenoid-type coil and a magnetic core of ferrofluid, with the former fabricated by MEMS technology and the latter by a chemical co-precipitation method. The performance of the MEMS transformer with a ferrofluid magnetic core was measured and simulated with frequencies ranging from 100 kHz to 100 MHz. Experimental results reveal that the presence of the ferrofluid increases the inductance of coils and the coupling coefficient of transformer; however, it also increases the resistance owing to the lag between the external magnetic field and the magnetization of the material.
Keywords: MEMS transformer; ferrofluid MEMS transformer; ferrofluid
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Export to BibTeX |

MDPI and ACS Style

Tsai, T.-H.; Kuo, L.-S.; Chen, P.-H.; Lee, D.-S.; Yang, C.-T. Applications of Ferro-Nanofluid on a Micro-Transformer. Sensors 2010, 10, 8161-8172.

AMA Style

Tsai T-H, Kuo L-S, Chen P-H, Lee D-S, Yang C-T. Applications of Ferro-Nanofluid on a Micro-Transformer. Sensors. 2010; 10(9):8161-8172.

Chicago/Turabian Style

Tsai, Tsung-Han; Kuo, Long-Sheng; Chen, Ping-Hei; Lee, Da-sheng; Yang, Chin-Ting. 2010. "Applications of Ferro-Nanofluid on a Micro-Transformer." Sensors 10, no. 9: 8161-8172.

Sensors EISSN 1424-8220 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert