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The Ultra Nano Porometer and the Advanced Capillary Flow Porometer are two decisive machines that have helped modern-day industries achieve economies and efficiency in processes. It’s because these advanced machines have transformed mundane membrane and sample testing processes into simple tasks that can be carried out within a few minutes.

Yet, both of these machines are different and special in their unique functions and purpose. To better understand which of these machines to choose for your industry, you must know the differences.


Today, let’s differentiate the two machines so that you can come to decide which one suits your industrial needs the best.


Advanced Capillary Flow Porometer Put Against The Ultra Nano Porometer


Advanced Capillary Flow Porometer


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The Advanced Capillary Flow Porometer is used for R&D and quality assurance purposes in industries globally. These industries include nonwovens, healthcare, biotechnology, hygienic products, fuel cell, household, pharmaceutical, battery, and filtration.


The tested samples include membranes, battery separators, health care products, ceramics, powders, filter media, and paper.


This machine produces very objective, reproducible, and accurate results with considerably reduced test durations and requires minimal operator involvement. The Advanced porometer is fully automated and is designed for linear turbulence-free test gas flow. The pressure is measured close to the sample; therefore, the correction term in the differential pressure calculation is minimized.


The required amount of pressure is uniformly applied to the O-ring seals for the sample, eliminating hand tightening for pressure application. The automatic addition of wetting liquid reduces test time appreciably. This sophisticated instrument has found applications in many industries.


The way testing works here is that the liquid is first allowed to fill the sample pores spontaneously, and a non-reacting gas is passed through them. The purpose of this gas is to displace the liquid in the sample pores.


Ultra Nano Porometer


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Nowadays, membrane researchers demand numerous tools for characterizing nonwoven bases and Micro, Ultra, and Nano-filtration membranes. This has made conventional porometers redundant as they tend to damage and harm the samples with their high pressure.


The Ultra Nano Porometer combines the benefits of two porometers into a single machine. These include the Capillary Flow Porometer and the Liquid-Liquid Porometer. Combining the two can yield accurate and reproducible results with precise pore characteristics.


The Ultra Nano Porometer is widely used to measure various pore characteristics like liquid flow rate, pore distribution, and mean pore size. The machine is mainly designed for calculating the pore structure for materials with broader pore sizes from relatively minor to relatively large structures.


The tests are initiated when a wetting liquid fills the pores. You can select two wetting liquids for running the tests. The first liquid that you select lowers surface tension and is used to fill the sample pores. The second liquid is added on top of the sample and is pressurized to displace the first one from the pores, letting it flow through pores.


Once done, the flow rate of the Capillary Flow porometery is conducted where the wetting liquid spontaneously fills the pores. A non-corrosive gas is then allowed to displace this liquid from the pores. Meanwhile, the gas pressure and flow rates through wet and dry samples are accurately measured.


The pressure is required for removing the liquid from the pores and cause gas to flow given by the first liquid without wetting the second liquid sample.


The Ultra Nano Porometer can calculate using both the techniques of the Capillary Flow and Liquid-Liquid Porometer in one platform. This machine covers a broad range of materials that fall in the filtration range of Micro/Ultra/Nano through pore characterization.


Concluding The Differences,


The Capillary Flow Porometer is the only machine product that performs the capillary flow porometery technique. On the other hand, the Ultra Nano Porometer can perform both the Capillary Flow Porometery and the Liquid-Liquid porometery at once. This makes it a much more versatile and advanced option for more sophisticated testing. Yet, which of the two machines will you be choosing?

 
 
 

Porometers are a fine example of how technology has transformed the world we live in and made convoluted processes highly efficient and effective. Today, a porometer, such as the advanced capillary flow porometer, is majorly used in industries globally simply because of its usefulness.


However, as there is a wide variety of porometers out there, which can leave you overwhelmed and confused, but don’t fret. Today’s article is a comparison of two of the most used porometers currently. These are the advanced capillary flow and the automated humid air porometer.

This comparison will serve as your guide for purchasing the right porometer for your specific requirements. So, without any further ado, let’s start comparing the two.

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Automated Humid Air porometer competes with the advanced capillary flow porometer


Applicability


The advanced capillary porometer is designed specifically for the purpose of accuracy and reproducibility. What more, these porometers require only minimal operator interference making the device automated and the test durations relatively fast.


These porometers are specifically designed for measuring linear turbulence and the free flow of test gas. The pressure is generally measured close to the correction in differential pressure value. Then there’s the availability of different models that suit various pore size ranges as well as flow rates.


Each of these six models is suited for analyzing data, controlling pressure, sensing, sample holding, and many other unique tasks.


Conversely,


The automated Humid Air Porometer is a very objective-based machine. This machine, much similar to the capillary flow, requires almost no operator involvement and has drastically reduced testing times as well.


However, the one big difference among the two is definitely the amount of pressure and its uniformity, which is applied to the O-ring seals of the samples. These cap on these seals needs to be tightened by hand. Later, the wetting liquid is added.


Extra capabilities


The advanced capillary flow porometer can test both complete samples as well as small specimens. This sophisticated instrument can conduct tests on a variety of different geometric membranes, including hollow fibers, cartridges, tubes, sheets, powders, rods, etc.


What’s more, is that you can use any wetting liquid in its chambers as the machine allows for a non-destructive measuring capacity. You can also look at the entire process of the sample tests through the provided real-time graphic display screen.


While on the other hand,


The Automated Humid Air Porometer allows liquid permeability tests that can measure liquid flow rates of the samples when the pressure is applied. Meaning, the volume of the liquid can easily be measured using this machine.


Conclusion,


These machines are proving to be of great value in research and development as well as quality control processes time and again.

 
 
 

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An often-asked question is whether or not an advanced permeability porometer is the best measurement tool for pores. The answer to this varies on the various capabilities of the machine. But there are 2 measurements in particular that are deemed most prominent in determining this.


One is the measurement of pore diameter and throat diameter. The advanced permeability porometer is capable of determining both of these measurements. Moreover, the device can also be used to determine the permeability of porous solids.


How it works is, the air is forced to flow through a test sample. Later calculations are made based on the steady-state flow rate and the corresponding pressure drop rate. This data proved vitally necessary for calculating permeability using the different units known as Gurley, Frazier, and Rayl units.


The liquid is flown through a sample, and then it’s measured by time, and the pressure of the liquid column drops. This method creates reproducible results even for materials that are hydrophobic in nature. A pressure of 200psi is applied to the pores creating a permeable sample that’s accurate in both weight and measurement.


Furthermore, the wetting liquid is allowed to fill the pores naturally in the sample and then administered to non-reactive gas to help displace the liquid from the pores. The gas pressure and flow rates through the wet and dry samples are then measured. The pressure is required to remove the liquid from the pores and causes the gas to flow where the pore diameter is. The surface tension of the liquid is the difference in gas pressure. Now, from the measured gas pressure and the flow' rates, the pore throat diameters, pore size distribution, and gas permeability are calculated.


Lastly,


The advanced permeability porometer is capable of measuring more than just these 2 diameters. It can also measure bubble point, mean flow of the pore diameter, the range of the pore diameter as well as the distribution of the pore size.


This device is currently being used globally for the purpose of R&D and quality control in industries such as pharmaceuticals, biotech, healthcare, food, hygiene, etc. The tested membranes vary from material to material, such as powders, ceramics, batteries, paper, etc. Now when that’s out of the way,


Which device do you think is best?

 
 
 
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