How much difference does the stylus tip size make?
These instruments use a 5 µm (200 µin) stylus tip radius. This suits
their purpose as a portable tool for checking roughness in three ways:
• Durability – It is less likely to be damaged even when subjected
to mishandling.
• Maintenance – It is easier to remove dirt and oil that collects on
the tip during use.
• Suitability – It acts as a filter to remove the highest surface
frequencies that are more reliably measured in a controlled
environment.
Other Taylor Hobson instruments use a stylus with a tip radius of 2
µm (80 µin). This smaller radius coupled with an inductive gauge head
having low contact force enables analysis of even the smallest surface
imperfections.
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