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 Sorted Stress Grading
ViSCAN is the new optical vibration measurement by MiCROTEC for determining a board’s stiffness. The board’s stiffness is measured when transported sideways with unsurpassed precision.
ViSCAN measures the vibrations directly on the board with a laser and then works independently from environmental conditions e.g. noise, which could affect the measurement results. This means ViSCAN reaches a repeatability and measurement precision of over 99 percent.
The boards pass through the ViSCAN sideways at a speed of up to 180 pieces per minute. As they pass through they are vibrated. The laser interferometer measures the natural frequency directly on the board but does not touch it. This means the accuracy of the measurement achieves a maximum error of less than one percent. Truly a world record!
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