Understanding how a Texture Analyser works – Choosing the best test settings

When creating your optimum test method for texture/physical property measurement you will need to make choices on each of the setting values according to the type of test you have chosen.  The values will depend heavily on the sample.

Pre-test speed

The probe begins to move from its start point towards the sample at the pre-test speed.

When trying to find a trigger force your pre-test speed should really not exceed 3mm/sec for best initial data capture and the most accurate starting point.  A fast approach can lead to a late trigger (or ‘overshooting’) therefore entering the sample before data is being collected. Usually the pre-test speed is slower than the test speed.