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Texture: Measure and Analyse Properties


Measure Friction Force


Friction force measurement applications using the TA.XTplus Texture Analyser

FRICTION is a phenomenon that is part of our daily lives - in one sense we would find most difficult to survive without it yet in another it can be most expensive to minimise. It can be simply identified as the resisting force that arises when one surface slides, or tries to slide, over another. It is commonly the textural property measured from packaging materials, shaving gels, cosmetic sponges, etc.

Friction can be a limitation to us, for example, the friction of packaging can be a major limiting factor in the speed of packing machines. Additives are often used to improve the lubricity of surfaces; this is known as 'slip'. Polythene is added to packaging to improve slip characteristics.

We recognise that there are two reactions due to friction that we can define. There is 'static friction' (sometimes shortened to 'stiction'), that is the resistance to start relative movement and there is 'kinetic' or 'moving friction' that is the resistance to maintain the movement at a specific constant speed. The Texture Analyser can also measure a coefficient of friction which is an empirical measurement. Rougher surfaces tend to have higher values.


Typical properties that can be obtained from a texture analysis graph:

Stiction, Friction, Coefficient of Friction.

The above are only typical examples of friction force measurement. We can, of course, design and manufacture probes or fixtures that are bespoke to your sample and its specific measurement.

Once your measurement is performed, our expertise in its graphical interpretation is unparalleled – no-one understands texture analysis like we do. Not only can we develop the most suitable and accurate method for the testing of your sample, but we can prepare analysis procedures that obtain the desired parameters from your curve and drop them into a spreadsheet or report designed around your requirements.

Typical texture analysis graph

Typical Texture Analyser graph 
with annotated properties

 

To discuss your specific test requirements, click here to email us.


 
We can all feel it; let us show you how to measure it – click on the video to see an overview of Texture Analysis and the properties it can measure...

 

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