Camera study suitability

There are two things to consider: how to perform a simple attribute study and how to perform a more detailed study should the simple study fail.
First you really should understand how the camera works (it isn’t a simple go-no go device. The ‘camera’ uses pixels of a particular size and compares the graphic position tot he target area and the objects outline…Or something similar…)

A simle attribute study would be to challenge the ‘gray area’. Position the graphic close to the boundaries, both in and out. depending on how the part is positioned to the camera you should also challenge the positioning of the object. (Shadows, glare, optical viewing angles will matter.). Don’t worry about the math at this point. The point of thi is to understand the facade accept and false reject area. How ‘big’ is it? Then think about the results. Is the camera adequate for your needs?

If the camera isn’t then you need to understand how it actually works and how it is failing to pick up misalignment or why it is rejecting correct positioning.

 

There are many so-called Go/No-go testers that actually collect variable data internal to the tester then display the results as Pass/Fail. In almost every case, I have been able to find someone that can access the variable data stored internal to the tester and perform a standard R&R study.