The Gocator 3D distance and profile sensor, available from Stemmer Imaging, makes it very easy to implement applications such as checking for missing, incompletely assembled (loose) and cross-threaded bottle caps.
Stemmer Imaging has produced a short video that shows how easy it is to set up an LMI Gocator 3D distance and profile sensor for inspecting bottle caps. The video is just one of many on the Stemmer Imaging website.
Stemmer's cap inspection video features a short animation to illustrate how the Gocator uses a laser line projector and an offset 2D digital sensor to gather 2D images or, with the addition of data from another axis - such as when a bottle traverses beneath the Gocator on a conveyor belt - the data can be converted into 3D profiles.
A section of the video is devoted to demonstrating how easy it is to set up the Gocator's profile tools using the supplied software to inspect for three different scenarios: missing bottle cap, loose cap and cross-threaded bottle cap. Loose caps are detected by measuring the cap height (too high means the cap has not been screwed down fully) and cross-threaded caps are detected by measuring the angle of the top of the cap (a deviation from horizontal indicates that the cap has been cross-threaded). While these three scenarios can be inspected for using 2D data, the video also shows how 3D profiling tools can be applied.
Follow the link for more information about the LMI Gocator range of 3D sensors from Stemmer Imaging.