Real-time measurements of size, speed, and dielectric property of liquid segments using a microwave microfluidic sensor | IEEE Conference Publication | IEEE Xplore

Real-time measurements of size, speed, and dielectric property of liquid segments using a microwave microfluidic sensor


Abstract:

This paper describes the use of microfluidic microwave sensors for measuring the length, volume, speed and dielectric properties of different liquids in a segmented flow....Show More

Abstract:

This paper describes the use of microfluidic microwave sensors for measuring the length, volume, speed and dielectric properties of different liquids in a segmented flow. The sensor is a variant of the split ring resonator, operating around 4 GHz, realized in a microstrip implementation. Changes of the resonant frequency and quality factor are performed when a segment enters the sensing region, in this case the gap regions. Two different geometries of resonators were used for the sensors, each with two gaps to accommodate a planar microfluidic channel. The segments consisted of mineral oil and water. Sensor simulations were performed using COMSOL Software, which compare favorably with the experimental measurements.
Date of Conference: 01-06 June 2014
Date Added to IEEE Xplore: 10 July 2014
Electronic ISBN:978-1-4799-3869-8
Print ISSN: 0149-645X
Conference Location: Tampa, FL, USA

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