【摘要】 ＥＣＴ（电容层析成象）技术是８０年代末发展的一种新的层析成象技术。本文提出了一种适用于１２电极ＥＣＴ系统的低噪声、低漂移的电容测量电路及计算机接口电路，并介绍了利用该接口电路对测量通道的逻辑控制和图象重建数据的采集方法及实现。更多还原

【Abstract】 Electrical capacitance tomography(ECT) technique is a new tomography imaging technique developed in recent years.This paper presents a low noise ,low drifting capacitance measuring circuit and computer interfuce circuit used in the 12electrode ECT system.The design of computer interface of the ECT can control the the selection of measuring channel and data capture is also given.更多还原