シースフローチャンバの研究 : 第2報, マイクロマシニングによる低圧力損失フローチャンバ

概要

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A new type of sheath flow chamber with low pressure loss is developed using micro machining. The chamber is formed by laminating three l00-μm-thick, photo etched, metal plates. The device uses sheath-flow geometry ; particles in suspension, which enter the chamber via an axial specimen nozzle, are enveloped by a buffering sheath-flow and transported to a capillary tube with cross section of 300μm×300μm. A finite-element viscous-flow analysis is used to examine the flow behavior in the quasi-two-dimensional passage configuration to which produces fluid-dynamic focusing flow. Experimental measurement shows a smooth constricted sheath-flow and pressure loss was reduced to one-tenth in comparison with the conventionally used glass flow chamber.
社団法人日本機械学会の論文
1996-05-25