Development of an experimental setup for micro flow measurement using the front tracking method

Elsa Batista; João A. Sousa; Miguel Álvares; Joana Afonso; Rui F. Martins

doi:10.1016/j.measen.2021.100152

Development of an experimental setup for micro flow measurement using the front tracking method

Elsa Batista, João A. Sousa, Miguel Álvares, Joana Afonso, Rui F. Martins

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Abstract

This work has the main objective to develop a method for microflow measurement using the front tracking principle under the project MeDD II – Metrology for Drug Delivery. The experimental setup uses a high-resolution camera and an image processing software to track the distance travelled by the meniscus of a liquid in a capillary tube and calculate the flow rate. Experimental tests using a flow generator were carried out for different flow rates using two different cameras. To validate the developed front tracking method, an internal comparison was made with the gravimetric method in LVC. The results obtained by this comparison were consistent. This developed method can be used to calibrate flow devices down to 1 μL/h with an uncertainty value of 7% (k = 2).

Original language	English
Article number	100152
Journal	Measurement: Sensors
Volume	18
DOIs	https://doi.org/10.1016/j.measen.2021.100152
Publication status	Published - Dec 2021

Keywords

Calibration
Front tracking
Measurement uncertainty
Microflow measurement

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10.1016/j.measen.2021.100152

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AB - This work has the main objective to develop a method for microflow measurement using the front tracking principle under the project MeDD II – Metrology for Drug Delivery. The experimental setup uses a high-resolution camera and an image processing software to track the distance travelled by the meniscus of a liquid in a capillary tube and calculate the flow rate. Experimental tests using a flow generator were carried out for different flow rates using two different cameras. To validate the developed front tracking method, an internal comparison was made with the gravimetric method in LVC. The results obtained by this comparison were consistent. This developed method can be used to calibrate flow devices down to 1 μL/h with an uncertainty value of 7% (k = 2).

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KW - Measurement uncertainty

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Development of an experimental setup for micro flow measurement using the front tracking method

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Keywords

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