目的：为实现用于脑磁感应成像系统中的数字鉴相方法，寻求一种高精度的相位检测手段。
AIM: to realize digital phase detection methods in brain magnetic induction tomography (MIT) system and to find a phase detection method with high accuracy.
介绍一种以正交鉴相为基础。以MCS - 51单片微机为核心的相位检测方案的设计思想和实验结果。
This paper presents the design and measurement results of a new phase measurement method, which is based on quadrature phase demodulation and helped with MCS-51 single microcomputer.
本研究采用软件鉴相方法对BMIT相位检测系统进行改进，旨在实现一种低误差、高精度的软件鉴相方法。
The research used software algorithms to improve BMIT phase detection system, aiming to realize a software system with high accuracy and low error.
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