TY - JOUR
AU1 - Li, Nan
AU2 - Xu, Hui
AU3 - Wang, Wei
AU4 - Zhou, Zhou
AU5 - Qiao, Guofeng
AU6 - Li, David D-U
AB - A novel bioelectrical impedance spectroscopy system based on the digital auto-balancing bridge method improved from the conventional analogue auto-balancing method is presented for bioelectrical impedance measurements. The hardware of the proposed system consists of a reference source, a null detector, a variable source, a field programmable gate array, a clock generator, a flash and a USB controller. Software implemented in the field programmable gate array includes three major blocks: clock management, peripheral control and digital signal processing. The principle and realization of the least-mean-squares-based digital auto-balancing algorithm is introduced in detail. The performances of our system were examined by comparing with a commercial impedance analyzer. The results reveal that the proposed system has high speed (less than 3.5 ms per measurement) and high accuracy in the frequency range of 1 kHz–10 MHz. Compared with the commercial instrument based on the traditional analogue auto-balancing method, our system shows advantages in measurement speed, compactness and flexibility, making it suitable for various bioelectrical impedance measurement applications.
TI - A high-speed bioelectrical impedance spectroscopy system based on the digital auto-balancing bridge method
JF - Measurement Science and Technology
DO - 10.1088/0957-0233/24/6/065701
DA - 2013-06-01
UR - https://www.deepdyve.com/lp/iop-publishing/a-high-speed-bioelectrical-impedance-spectroscopy-system-based-on-the-6OJCyHnAMl
SP - 065701
VL - 24
IS - 6
DP - DeepDyve
ER -