Considering Probes for Roughness Measurement
Skidded probes are available in two types: longitudinal and lateral. Here’s how to decide which is best for your surface finish measurement.
For measurement accuracy, the ideal situation is to have the skid on the measurement probe sit atop the peaks on the surface of the part, as shown in Figure 2. With the skid sitting atop the peaks, the stylus will travel the full dimension, from the top of the peak to the lowest valley. This ensures that no mechanical filtering of the measurement results occurs.
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