Title :
A Magnetic Induction Tomography System Using Fully Synchronous Phase Detection
Author :
Li, Ye ; Liu, Ruigang ; Dong, Xiuzhen
Author_Institution :
Dept. of Biomed. Eng., Fourth Mil. Med. Univ., Xian, China
Abstract :
A multi-channel MIT system based on fully synchronous phase detection is described. The fully synchronous phase detection can further decrease the phase noise at a fast speed. The maximal absolute phase noise of the phase detection circuits is under 0.008 degree within one hour. The system phase error is blow 0.01 degree. The time of one phase detection is about 1 ms. Preliminary imaging results on low conductivity objects (0.25 S/m and 0.5 S/m) are obtained.
Keywords :
biomagnetism; biomedical measurement; tomography; fully synchronous phase detection; magnetic induction tomography system; phase detection circuits; phase noise; Circuits; Conductivity; Frequency; Magnetic field measurement; Magnetic fields; Oscillators; Phase detection; Phase measurement; Phase noise; Tomography;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5162182
