A Prototype Portable System for Bioelectrical Impedance Spectroscopy

摘要：

In this paper, we propose a high precision, low power consumption bioelectrical impedance spec-troscopy system prototype which provides programmable frequency sweep and tuning capability for impedance measurement from 10 Ω to 1 MO using Analog Devices AD5933 impedance mea-surement chip. Coefficients of variability (CVs) are applied to assess the stability of the system. The experiments show that the coefficient of variability (CV) of the system is less than 10％ over a sweep frequency range from 1 kHz to 100 kHz. The bioelectrical impedance spectroscopy of a tomato stem is then investigated. The results show that this system is a useful tool to measure changes in the water content of plants.

关键词： Bioelectrical Impedance AD5933 Measurement Tomato

作者: Jian-xin He Zhong-yi Wang Yu-ling Shi Yang Qin Dong-jie Zhao Lan Huang

作者单位: College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, China

会议类型: 国际会议

会议名称: The 4th IFIP International on Computer and Computing Technologies in Agriculture and the 4th Symposium on Development of Rural Information(第四届国际计算机及计算机技术在农业中的应用研讨会暨第四届中国农业信息化发展论坛 CCTA 2010)

会议地点: 南昌

会议语种:英文

页码: 1151-1156

在线出版日期: 2010-10-22（万方平台首次上网日期，不代表论文的发表时间）