Overview of basic testing of vision system code reading tools

 If you want to evaluate an industrial code reading tool, start by measuring the reading speed of your vision system. To do this, present a well-labeled code to the vision system and let it read the code hundreds of times under original conditions to determine the number of reads per minute. Please ensure that the read rate reaches 100% under these optimized conditions, otherwise you may face read issues later when conditions are less than ideal. For example, if the line speed is 2,000 components/hour and the read rate is 99.7%, then in just one eight-hour shift, there will be 48 components with unreadable ID codes!

After determining your system's read speed, you should conduct a more challenging read rate test to determine the impact of factors such as production line vibration, variable lighting conditions, and extremely high temperatures on the vision system's read performance in your application. production line speed, etc. To do this, present a larger sample of code of varying quality (good, bad, and critical mass) in front of the vision system. At the same time, it simulates vibration and motion blur effects by shaking and sliding the element back and forth under the camera as it captures images. This test will provide a good initial assessment of how well your vision system’s read rates can withstand the challenges of real-world production conditions.