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Measurement of the inner wall waviness and roughness of a turbocharger housing using a laser microscope

Turbocharge housing
Turbocharge housing


A turbocharger housing must have a structure where the appropriate amount of intake air and exhaust gas flow at a suitable pressure to achieve efficient supercharging. For that purpose, the waviness and roughness of the turbocharger inner wall should be measured.

The Olympus solution

The Olympus LEXT OLS5000 3D laser scanning microscope's data stitching function enables high-precision surface roughness measurement for a wide area.


Air inlet

Air inlet

Surface roughness (replica), 20x objective lens

Surface roughness (replica), 20x objective lens

Olympus IMS



With the Olympus LEXT OLS5000 laser scanning confocal microscope, noncontact, nondestructive 3D observations and measurements are easy to produce. Simply by pushing the Start button, users can measure fine shapes at the submicron level. Ease of use is combined with leading-edge features to deliver an acquisition speed four times faster than our previous model. For customers with larger samples, LEXT long working distance objectives and an extended frame option allow the system to accommodate samples as large as 210 mm.
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