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首页> 外文会议>Process control, electrical amp; information conference ISA Pupid 38th annual symposium >The next generation of rotating consistency transmitters, capable of being extracted at full process pressure
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The next generation of rotating consistency transmitters, capable of being extracted at full process pressure

机译：下一代旋转浓度变送器，能够在全过程压力下提取

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The paper describes a new type of rotating consistency transmitter that can safely and easily be extracted through an insertion assembly with isolation gate valve without having to shut down the process. This paper provides a detailed discussion on the fundamental differences between shear force and frictional drag forces acting on a mechanical sensor placed into a moving pulp stream. It describes why the ISO-torq design is a fundamental departure from all previous designs of rotating consistency transmitters and explains how it maximizes the influence of those forces which are directly related to consistency and minimizes flow turbulence and the influence of drag forces which negatively impact the measurement of consistency. This next generation technology is covered by five separate U.S. patents and is described in more detail. Unlike existing transmitters, the new transmitter measures torque on an absolute basis. The singificance of having an absolute measurement of torque include: single point calibration, a simple, linearized calibration curve, and a self-tuning calibration system. This paper further introduces the concept of calming length, describes the flow conditions necessary to achieve a good measurement, and explains how best to obtain plug flow conditions.
机译：本文介绍了一种新型的旋转浓度变送器，它可以通过带有隔离闸阀的插入组件安全而轻松地取出，而无需关闭过程。本文详细讨论了剪切力和摩擦阻力之间的基本区别，该摩擦力作用于置于移动纸浆流中的机械传感器。它描述了为什么ISO-torq设计与以前的所有旋转浓度变送器设计都有根本的不同，并说明了它如何最大程度地提高与浓度直接相关的那些力的影响，并最大程度地减小流动湍流和对力产生负面影响的阻力的影响。一致性测量。这项下一代技术由五项单独的美国专利所涵盖，并进行了更详细的描述。与现有的变送器不同，新变送器绝对测量扭矩。绝对测量扭矩的意义包括：单点校准，简单的线性校准曲线和自整定校准系统。本文进一步介绍了定长的概念，描述了实现良好测量所需的流动条件，并解释了如何最佳地获得塞流条件。

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