Yankee dryer profiler and control

A coating inspection system for determining a quality of an adhesive coating on a creping cylinder, the system comprising:

• a topography instrument operable to measure one or more properties of the adhesive coating on an outer surface of the creping cylinder, the topography instrument comprising:
• a light source system operable to direct a beam of light towards the adhesive coating at an angle and measure an initial intensity of the beam of light, wherein the angle is a non-zero angle of the beam of light relative to a direction normal to the outer surface of the creping cylinder;
• an imaging system operable to capture an image of a cross-section of the beam after the beam is reflected from the outer surface of the creping cylinder and passed back through the adhesive coating;
• and
• a beam intensity measuring system operable to measure a final intensity of the beam after the beam passes through the adhesive coating and is reflected from the outer surface of the creping cylinder;
• and
• a control system communicatively coupled to the topography instrument, the control system comprising at least one processor, at least one memory module communicatively coupled to the at least one processor, and machine readable instructions stored on the at least one memory module, the machine readable instructions, when executed by the at least one processor, may cause the control system to automatically:
• determine a distance from the imaging system and the beam intensity measuring system to the outer surface of the creping cylinder from the image captured by the imaging system;
• determine an absorbance of the adhesive coating from the initial intensity of the beam measured by the light source system and the final intensity of the beam measured by the beam intensity measuring system;
• and
• calculate one or more properties of the adhesive coating from the distance and the absorbance, where the one or more properties are indicative of a quality of the adhesive coating.