NDLI: Modeling of positive-displacement fluid dispensing processes

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Modeling of positive-displacement fluid dispensing processes

Content Provider	IEEE Xplore Digital Library
Author	Chen, X.B. Jun Kai
Copyright Year	1999
Abstract	Dispensing has been widely used in industry to precisely control the delivery of fluid materials. Among several approaches, positive-displacement dispensing by employing the linear movement of a motor-driven piston is recognized as the most promising because the approach is assumed to be "true" volumetric dispensing. This is true for dispensing a large volume of fluid with continuous piston motion. As the volume of fluid decreases to the micro-liter range, however, this assumption is no longer valid because the fluid properties, in particular the compressibility and flow behavior, can have a significant influence on the volume of fluid dispensed. Taking into account the influence, This work presents the development of a model for the positive-displacement dispensing process. The model is then used to investigate the process performance, with the emphasis on identifying the influence of such factors as the fluid volume in a syringe, the needle temperature, and the fluid properties on the consistency in volume of fluid dispensed.
Sponsorship	IEEE Components, Packaging, and Manufacturing Technology Society International Microelectronics Assembly and Packaging Society (IMAPS)
Starting Page	157
Ending Page	163
Page Count	7
File Size	611882
File Format	PDF
ISSN	1521334X
Volume Number	27
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2004-07-01
Publisher Place	U.S.A.
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pistons Fasteners Needles Micromechanical devices Surface-mount technology Drives Assembly systems Electronics packaging Fluid flow Industrial control positive-displacement dispensing Compressibility consistency flow behavior model
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Electrical and Electronic Engineering

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