When the customer presents us with an inspection job, we look at the whole concept. First of all - is it feasible? And will the benefit be justified compared to the cost? Basically, will it make sense?
Then we ask for samples or good pictures of the part, process, or installation. If relevant, we want to see samples. The samples must contain marginal defects. These are the defects, you may accept as good or as a reject. The marginal defects determine the sensitivity of the system.
After some work JLI can normally give a fixed price quotation. We base our proposal on experience from similar projects and calculations using the latest hardware and software.
If there is doubt about the sensitivity, speed, or other parameters, we often suggest a paid preliminary study. This will investigate all critical parts of the job and provide a statistical analysis showing how well the vision system will work in real production. The preliminary report will be used to verify that the vision system will operate as predicted.
The preliminary report is not an extra cost to the project, as this is part of the development. By doing the preliminary investigation you take out the risk of the project and get a better understanding of the limits and benefits.
Learn more about our process here:
The Machine Vision Project Checklist