Related Experiment Video
Updated: Jan 22, 2026
08:32
Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
Published on: January 29, 2013
14.4K
Manufacturing a Micro-model with Integrated Fibre Optic Pressure Sensors.
I M Zarikos1, S M Hassanizadeh1, L M van Oosterhout1
11Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands.
Transport in Porous Media
|July 2, 2019
Summary
This study introduces a novel microfluidic model with integrated fiber optic pressure sensors for precise pore-scale pressure measurements in two-phase flow experiments within porous media.
Area of Science:
- Geophysics
- Fluid Dynamics
- Materials Science
Background:
- Measuring fluid pressure at the pore scale in porous media is experimentally challenging.
- Understanding two-phase flow dynamics requires accurate, localized pressure data.
Purpose of the Study:
- To develop and validate a microfluidic device with integrated fiber optic pressure sensors for pore-scale pressure measurements.
- To demonstrate the utility of these sensors for transient two-phase flow studies.
Main Methods:
- Fabrication of a polydimethylsiloxane (PDMS) microfluidic model with defined pore geometry.
- Integration of fiber optic pressure sensors with a 260 µm measurement window.
- Conducting single-phase and two-phase flow experiments under transient conditions.
Main Results:
- Successful demonstration of pore-scale pressure measurement using integrated fiber optic sensors.
- Analysis of transient two-phase flow behavior and its correlation with pressure fluctuations.
- Observation of links between small-scale pressure changes and pore-scale events.
Conclusions:
- The developed microfluidic model with fiber optic sensors is effective for pore-scale pressure measurements.
- This technology advances the study of two-phase flow in porous media.
- Provides insights into the relationship between pore-scale phenomena and macroscopic flow behavior.
Related Concept Videos
01:26Steel Manufacturing
1.4K
Steel manufacturing is a multi-stage process that begins by smelting iron ore into cast iron in a blast furnace. This initial stage involves layering iron ore with coke, a type of fuel, and crushed limestone within the furnace. The coke is ignited with a high volume of air, leading to the creation of carbon monoxide, which acts to reduce the iron ore to pure iron.
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
During this smelting process, limestone plays a crucial role by forming slag. Slag captures impurities within the molten iron, such...
1.4K
01:27Growth Models with Integration: Problem Solving
36
In population modeling, integration provides a systematic way to determine accumulated quantities from known rates of change. One such application arises in ecology, where the total weight of a fish population in a body of water is referred to as its biomass. When the rate of growth of this biomass is known as a function of time, calculus can be used to determine the total biomass at a future date.Growth Rate and Biomass FunctionLet the growth rate of the fish population be represented by a...
36
02:34Vapor Pressure
40.0K
When a liquid vaporizes in a closed container, gas molecules cannot escape. As these gas phase molecules move randomly about, they will occasionally collide with the surface of the condensed phase, and in some cases, these collisions will result in the molecules re-entering the condensed phase. The change from the gas phase to the liquid is called condensation. When the rate of condensation becomes equal to the rate of vaporization, neither the amount of the liquid nor the amount of the vapor...
40.0K
02:57Definition and Measurement of Pressure: Atmospheric Pressure, Barometer, and Manometer
42.7K
Gas pressure is caused by force exerted by gas molecules colliding with the surfaces of objects. Although the force of each collision is very small, any surface of an appreciable area experiences a large number of collisions in a short time, which can result in high pressure.
42.7K
01:27Manufacture of Concrete Masonry Units
390
The process of manufacturing concrete masonry units begins by mixing stiff concrete composed of Portland cement, aggregates, and water. This mixture is then poured into metal molds. To ensure the concrete settles uniformly and to avoid separation of its components, the mixture in the molds is subjected to vibration. Shortly after, the still-wet blocks are removed from the molds and placed on racks.
These wet blocks are then transported for curing, which can occur in one of two environments: a...
These wet blocks are then transported for curing, which can occur in one of two environments: a...
390
03:02Constant Pressure Calorimetry
97.4K
Calorimetry is a technique used to measure the amount of heat involved in a chemical or physical process or to measure the heat transferred to or from a substance. The heat is exchanged with a calibrated and insulated device called the calorimeter. Calorimetry experiments are based on the assumption that there is no heat exchange between the insulated calorimeter and the external environment. The well-insulated calorimeters prevent the transfer of heat between the calorimeter and its external...
97.4K