FLUID METERING FOR PERISTALTIC PUMPING

Y. Feng, C. M. Jiang, W. H. Deng

Abstract

Peristaltic pumping is a common process in chemical, biomedical and pharmaceutical applications. However, the actual measured flow is frequently found to be erroneous with an accuracy no better than 10%. In this paper we present a design of the precise fluid metering sensing technology using MEMS thermal time-of-flight principle in a close loop with the peristaltic pumping for the bio-fluidic analyser. The data indicate that the MEMS fluidic meter could significantly improve the accuracy and control of the fluid delivery within 5% which not only substantially reduces the cost but boosts the performance of the instrument by better controlling the sample to carrier liquid injections.

Keywords

fluid, liquid, peristaltic pumping, metering, MEMS, fluidic meter

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DOI

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IMEKO TC

TC9 - Flow Measurement

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