该系统能快速测定型砂的有效粘土含量和含水量，实现型砂质量的直接控制。
The system can test active clay content and moisture of green sand fast and control its composition directly.
引入有效粘土密度和有效含水率的概念，描述石英砂颗粒之间的粘土基质的物理状态。
The concept of effective density and water content were introduced to describe the physical state of the clay matrix filling between sand particles.
本文基于“双电源二次激励法”的基本原理，并利用人工神经网络技术求得型砂含水量及有效粘土含量。
Based on "Double Powers Exciting Method" and ANN technique, the moisture and the available clay content of green sand can be calculated quickly by the system.
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