本文为挪威奥斯陆大学（作者：Patrick Hisni Brataas）的硕士论文，共357页。

本文介绍了一种生物阻抗测量系统的设计和原型。该系统是无线的，由电池供电。定制的模拟前端能够进行生物阻抗测量，使用两个或三个电极来进行测量。它主要在数字域中进行信号处理，并讨论了两种不同的技术。采用了一种通用的ARM微控制器进行处理。测量数据通过蓝牙从系统传输到桌面计算机或Android设备。系统已在1kHz至140kHz的频率范围内进行了测试和验证。当用电路测试时，能正确地测量阻抗模值和相位。以针状电极为测量电极，成功地识别出蛋清、蛋黄及其边界。

In this thesis the design and prototype ofa bioimpedance measurement system is described. The system is wireless andbattery powered. A custom analog front-end has been made to be able to dobioimpedance measurements. It uses a two or three electrode setup to do themeasurements. It does most of the signal processing in the digital domain andtwo different techniques has been discussed. A common ARM microcontroller hasbeen used to do the processing. The measurement data is transferred from thesystem to a desktop computer or Android device over Bluetooth. The system hasbeen tested and verified to work in the 1 kHz to 140 kHz frequency range. Itmeasures the impedance modulus and phase correctly when tested with anelectrical circuit. The egg white, egg yolk and the boundary between has beensuccessfully discriminated by using a needle electrode as the measurementelectrode.

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