This portable surface roughness tester is equipped with a
joystick for stylus positioning and includes a built-in printer.
Source: Mitutoyo America Corp. Today, the majority of
manufacturers have come to understand and accept the roughness
profile, Ra. But how much does industry understand the
importance of the related waviness profile, Wt? As the waviness
profile is becoming more common in process control, operators
should learn how to understand this parameter. The relationship
between roughness and waviness can be illustrated by picturing a
landscape of rolling hills covered in grass. The hills are
analogous to the waveform, while the grass covering the hills is
analogous to roughness. Source: Mitutoyo America Corp. Waviness
Vs. Roughness The relationship between roughness and waviness
can be illustrated by picturing a landscape of rolling hills
covered in grass. The hills are analogous to the waveform, while
the grass covering the hills is analogous to roughness. To
provide a sense of the scale for these