We used to perform thickness measurement of glass using laser displacement sensors from another company. Tracking errors occurred with patterned surfaces, and we couldn't seem to improve inspection cycle times. Using KEYENCE's LK Series of laser displacement sensor, we were able to eliminate tracking errors and improve inspection cycle times.

For inspecting the thickness of noodles, we used a hand micrometer. Our results varied greatly, especially for soft noodles, due to different contact pressure during measurement. Using KEYENCE's LK Series of laser displacement sensor, we were able to handle thickness measurements in-line. And because the LK Series utilises non-contact measurement, we were able to resolve the issue of operator error.

We previously performed thickness measurement of rubber sheets in-line using conventional laser displacement sensors. However, the sensors could not support stricter product tolerances, so we tried out LK Series laser displacement sensors from KEYENCE. The LK Series handled the stricter tolerances and helped to us to resolve our issue measurement variations due to the surface roughness.

For laminated motor cores, device performance changes depending on the number of laminated layers. For this reason, we first visually checked whether the specified number of core layers had been set. By using KEYENCE's LK Series of laser displacement sensor for in-line thickness measurement, we were able to inspect our products automatically.

A camera was used to inspect glass panel sealant application. The camera allowed us to perform coating crack inspections, but we also needed to inspect the inclination of the sealant. For this, we adopted the LJ Series 2D laser displacement sensor from KEYENCE. With the sensor head fixed to the dispenser, we were able to not only look at coating cracks but also measure the thickness, width, and cross-sectional area of the sealant.