介绍了利用常规执行机构和先进检测设备，在控制不同物质进行动态混合时获得较高控制精度的原理；分析了消除累计量（物料投放量）控制误差的技术和方法。实践证明，利用该原理研制的不同物料实时混合控制系统简单、实用，是大幅度提高控制精度的有力手段。%A Principle of getting high control precision with normal processing devices and advanced measuring devices in mixing different matter is introduced；the methods of reducing control error are analyzed.It has been proved that using this principle，the system who control different matter is simple,practicable and is the powerful method to improve control precision.
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