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Pipe Flowrate Measurement01:28

Pipe Flowrate Measurement

793
In pipe flow measurement, orifice, nozzle, and Venturi meters are commonly used to determine fluid flowrates by constricting the flow area, which increases fluid velocity and reduces pressure. This pressure difference, governed by Bernoulli's principle and adjusted for real-world conditions, is essential for calculating flowrate. Each meter type is suited to specific applications based on accuracy, efficiency, and compatibility with various flow conditions.
The orifice meter is a simple,...
793

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Updated: Sep 6, 2025

High Speed Droplet-based Delivery System for Passive Pumping in Microfluidic Devices
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Flowmetering for microfluidics.

C Cavaniol1,2, W Cesar2, S Descroix1

  • 1Institut Curie and Institut Pierre Gilles de Gennes, PSL Research University, CNRS UMR 168, Paris, France. charles.cavaniol@curie.fr.

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Summary
This summary is machine-generated.

Accurate microfluidic flow measurement is crucial for advancing technologies. This review covers current and emerging flowmeter techniques, highlighting the need for traceable standards in microscale liquid handling.

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Area of Science:

  • Microfluidics
  • Metrology
  • Sensor Technology

Background:

  • Microfluidics, initially for chromatography and printing, now spans diverse scientific fields.
  • Miniature component development enables microscale liquid handling, driving microfluidics expansion.
  • Maturing microfluidic technologies require precise flow rate measurement (1 nL/min to 1 mL/min).

Purpose of the Study:

  • To review available and developing microfluidic flow measurement technologies.
  • To discuss the sensing principles and industrial readiness of these flowmeters.
  • To examine primary standards for traceable microfluidic flow rate measurements.

Main Methods:

  • Comprehensive literature review of microfluidic flowmeter technologies.
  • Analysis of sensing principles and industrial maturity.
  • Focus on metrological developments for primary flow measurement standards.

Main Results:

  • Overview of diverse flow measurement technologies for microfluidic applications.
  • Assessment of current industrial maturity and sensing principles.
  • Highlighting the progress and challenges in developing primary flow measurement standards.

Conclusions:

  • Accurate and traceable flow measurement is a key challenge for microfluidics.
  • Continued development of flowmeters and metrological standards is essential.
  • Future perspectives and pending challenges for microfluidic flowmeters are discussed.