Application of Image-Pro Plus in the groove filter rod characteristic parameters measurement

摘要

Basing on the Image-Pro plus (IPP) technique, a kind of groove filter rod characteristic parameters (such as groove depth, channel ventilation area, number of grooves) measurement system was build. Method: put 5 groups of standard channel ventilation area-known groove rods and 10 pre-cut self-made groove filters under the microscope with the groove sides up, adjust the intensity of the light and the focal length, take the pictures of all. Use IPP to measure all the parameters, and MINTAB to analyze the accuracy and precision of the IPP system. Results: (1)the IPP system is convenient to operate, easy to use and fast to measure the characteristic parameters such as channel ventilation areas, groove depth as well as groove numbers of the groove filters. (2) the measurements for the channel ventilation area, groove depth doesn't exist linear bias. The channel ventilation area precision index Gage R & R = 24.66 < 30, and groove depth precision index Gage R & R = 26.40 < 30, which means measurement precision is good.(3)The manual measurement mode and automatic measurement mode of IPP system in regard to the measurement results bear no significant difference (P > 0.05), and can be chosen for different needs. The measuring method provides help in the research of groove filters rod' tar-reducing mechanism as well as in the increase of production process control capacity.