Keeping cameras clean in a harsh environment is vital for detecting defects.
Since 1994, Procemex has been gathering knowledge in various cleaning methods. Today the work is focused on perfecting pinhole camera cleaning technology and image quality. An important milestone on this road is the new in 2020 introduced unique pinhole technology capable to cover all camera resolutions up to 12 MPix with superior light sensitivity and imaging clarity. This is Procemex Crystal Camera.
As most of the cameras are located in the forming and press section, it is clear that keeping cameras and lights clean in a harsh environment is important.
Lights are typically kept clean by applying a thing water layer on top of the protection window. The cleaning water also takes care of light cooling.
The inability to keep web break cameras clean is an everyday reality practically at all pulp and paper mills. Dirt in protection window make images dark and fuzzy.
Pinhole cameras have been used by so far only in most difficult environment, such as paper machine wet end locations. The reason for not using them in every position, has been lower image quality than with the cameras equipped with standard lens and protection window.
This is now changed. The traditional pinhole camera bottlenecks such as:
are not relevant any more!