Component Cleanliness Analysis is usually not only focused on particle counting results, but also on the differentiation by particle type.
Using a microscope, the established analysis is performed by sequential acquisition of two images. One image is recorded with the parallel orientation of two polarizer and a further image is recorded with the two polarizer in 90° orientation to each other (crossed polarization).
Metallic particles appear dark black when using crossed polarization whereas non-metallic particles often change their appearance from gray to darker gray or even do not show any reaction on polarization. This effect is used to differentiate between metallic-shiny and non-shiny particles.
The new camera technology with on-chip polarization allows parallel acquisition of one dual channel image with both directions of polarization at the same time. This leads to time reduction by 100% for the image acquisition step.
This functionality is only available when using the Axiocam 705 pol.
The component cleanliness job templates are designed to analyze images acquired with the Axiocam 705 pol.