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Lasercheck®Surface Roughness Measurement Gage |
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Measuring Principle |
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All Lasercheck measurement heads contain a built in visible laser source. This emits a laser beam from the bottom of the gage illuminating the surface beneath it. After striking the surface, the laser light is reflected and scattered back into the Lasercheck detection system. Perfectly smooth surfaces reflect just the “central” specular laser beam and there is no “diffuse” or scattered reflection surrounding that specular beam. As surface roughness increases, the "specular" laser reflection decreases in relative intensity and the "scattered light" reflection increases in relative intensity. This overall distribution of the reflected and scattered light is measured by an array of small closely packed detectors. This measurement is digitized and analyzed by Lasercheck electronics, then Ra roughness is calculated for the illuminated area. |
How Does Lasercheck Work? |
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Light Scatter Technology |
