There is a growing need for improved measurement solutions which offer higher precision, speed and accuracy and provide better in-process measurement of moving objects, resulting in lower costs for better products. Optimet's sensors overcome the limitations of many existing measurement devices, and in many cases provide the only comprehensive solution for complex measurement problems

In this particular application video we see two Optimet sensors measuring holes inside an automotive engine surface. The first sensor take several reference points on top of the engine block, while the second sensor attached to a periscope is able to get into the engine holes and measure both the depth and side walls. By using a periscope we can take advantage of Optimet's unique co-linearity technology and scan inside deep holes to get its depth, diameter and sharp angles. Each measurement point gets X and Y coordinates from the stage encoder while it's synchronizing with the sensor Z measurement, which is the distance. This particular machine and software were built and integrated by VISIONIC.

Application of the month

Optical measurement of narrow holes
Measuring deep and narrow holes with an aspect ratio of 1:5 (Diameter : Height) has always been a difficult and largely an unsolved problem. This is even more problematic if not only the bottom surface needs to be measured, but also the side walls, which are characterized with very steep angles.

Optimet's non-contact distance sensors use a unique technology which has the largest angular coverage in the market (±85°) and is also co-linear. These advantages enable measurement of the side walls as well as the bottom surface.

Some applications require measurement of 90° falling walls. This can be solved by integrating two ConoPoint-10 sensors each tilted at ±7° relative to the top surface, which can accurately measure the walls and return the inner diameter within micron level.
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