Fluidics and its Usage for Tobacco Processing/Pneumonik und ihre Anwendungen in der Tabaktechnologie

Q3 Agricultural and Biological Sciences
H. Gretz
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Abstract

Abstract In recent years, new components have been used for numerous regulating and control functions: fluidic elements. These are switching and amplifier elements operated by means of low-pressure air and suitable for setting up logic circuits. This new line of technology, fluidics, also may be usefully applied to tobacco processing. This report therefore is intended as a preliminary guidance into the subject. An introductory chapter compiles the necessary basic features of control technics as far as these may be helpful to the understanding of the following description of fluidic elements. The first part of the main chapter deals with fluidics in general. Out of the variety of the different types only the two most important ones are considered: the jet-deflection and the turbulence affected fluidics. Design and functioning of both types are thoroughly discussed. The second part of the main chapter displays some applications in the field of tobacco processing. For the control of tobacco rod filling, emphasis is laid especially on the principle of measurement, whereas signal-controlled processing is only dealt with in short. A detailed description of the further processing of the signal is given for the example of a cigarette end scanner. Inspection at a packer on availability of all materials finds a particularly fine solution when applying turbulence-affected fluidics. In addition, a further example shows level control of fluids in storage tanks. In conclusion, some comparisons of fluidic elements against each other as well as against other control elements are given.
流体及其在烟草加工中的应用/烟叶加工技术中的气动与气动
摘要:近年来,新型元件被用于许多调节和控制功能:流体元件。这些是通过低压空气操作的开关和放大器元件,适用于设置逻辑电路。这一新技术——流体技术,也可有效地应用于烟草加工。因此,本报告旨在作为对这个问题的初步指导。导论一章汇编了控制技术的必要基本特征,这些特征可能有助于理解下面对流体元件的描述。主要章节的第一部分一般讨论流体学。在各种不同类型中,只考虑两种最重要的类型:射流偏转和湍流影响的流体。对两种类型的设计和功能进行了深入的讨论。主要章节的第二部分展示了该技术在烟草加工领域的一些应用。在烟丝杆灌装控制中,着重强调了测量原理,而对信号控制处理只作了简略的论述。以烟头扫描仪为例,详细描述了信号的进一步处理。在封隔器上检查所有材料的可用性,发现在应用受湍流影响的流体时,有一个特别好的解决方案。此外,还有一个例子说明了储罐中流体的液位控制。最后,给出了流体元件之间以及与其他控制元件之间的比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Beitrage zur Tabakforschung International/ Contributions to Tobacco Research
Beitrage zur Tabakforschung International/ Contributions to Tobacco Research Agricultural and Biological Sciences-Agronomy and Crop Science
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