Posts tagged porometer

Batteries and Battery Separators

Batteries and separators

The porous nature of various elements in the structure of a battery has a crucial effect on its performance and is the subject of much material characterisation work using PMI instruments. Materials used to separate the cells in a battery are of particular concern, but so too are a number of other key components. Continue reading Batteries and Battery Separators

Pore Size in Automotive Components

automotive

The automotive industry is just one of the many sectors that regularly make use of instruments for the measurement of pore size and other pore characteristics. Perhaps the most obvious components for which information on pore structure is needed – but not the only ones – are the various filters that play vital roles in the functioning of a vehicle. Continue reading Pore Size in Automotive Components

Cartridge Bubble Point Tester

PMI cartridge bubble point tester

Straying just a little from the subject of pore size, but onto a topic that is relevant to many users of porometers and other pore characterisation instruments, my attention has been caught by a new product from PMI. It’s a cartridge bubble point tester… Continue reading Cartridge Bubble Point Tester

Compression Liquid Extrusion Porosimeter

PMI Compression Liquid Extrusion Porosimeter

A very versatile instrument that I’ve been looking at recently is the Compression Liquid Extrusion Porosimeter from PMI. This clever piece of equipment will measure pore volume like a mercury intrusion porosimeter, although without the use of mercury or any other toxic substance, and will also measure liquid permeability like a permeameter. What’s more, it can do so while holding the sample under compressive stress. Continue reading Compression Liquid Extrusion Porosimeter

Cake Forming Porometer

Cake

If I say that today I’m going to talk about cake, you might think I’m deviating from the normal subject matter of the Pore Size website. However, cake actually has a vital role to play in the world of filtration, which in turn involves porometry. Not the kind of highly calorific cake that’s so often my downfall but the cake that forms on a filter’s surfaces. Continue reading Cake Forming Porometer

Porometry Made Simple

PMI porometer

Among the many pore characterisation products currently described on the PMI website is a ‘Simple Porometer’. It reminds me that now might be a good time to go back to basic principles and tell new visitors to Pore Size about what a porometer is and why it is so useful. Continue reading Porometry Made Simple

Liquid-Liquid Porometer

Liquid-liquid porometer - PMI

It’s always good news to me when I see a new porometer on the PMI website! This time it’s a liquid-liquid porometer specially designed for characterising pore size and structure in such materials as membranes, filter media, ceramics, paper and textiles. Continue reading Liquid-Liquid Porometer

Capillary Condensation Flow Porometer

Capillary Condensation Flow Porometer - from PMI

The Capillary Condensation Flow Porometer from PMI is a unique instrument which allows pore size, gas permeability and flow rate to be measured without subjecting samples to the potentially harmful effects of high pressures, extreme temperatures or toxic substances. Continue reading Capillary Condensation Flow Porometer

Fuel Cell Porometer

Fuel cell

Designed for use by manufacturers of fuel cell components, Meritics considers the Fuel Cell Porometer from PMI to be an exceptionally versatile instrument. Its fully automated analysis includes measurement of pore ‘throat’ diameters, the size distribution of the pores, the mean diameter of the flow pores and the surface area – or envelope surface area – of the through pores. It can also be used to determine the material’s liquid and gas permeability. Continue reading Fuel Cell Porometer

Capillary Flow Porometry in the Study of Filter Media

Filter

If I was to ask you to name something whose porous nature people might want to investigate, I bet that ‘filters’ would be a popular answer – if not the very top response. Today I’d like to have a look at filter media and what a porometer can tell us about them. Continue reading Capillary Flow Porometry in the Study of Filter Media