Oregon Graduate Center for Study and Research

James F Holmes

Method for monitoring the weight of glue sprayed on a veneer surface, where the light reflectance from droplet-covered regions on the surface differs from that of uncovered surface regions. According to the method, a beam of light is directed onto the sprayed surface of a relatively moving veneer, and the light reflectance from a zone within the illuminated surface area is detected to produce a signal which varies according to instantaneously detected reflected light level. A signal-handling circuit transforms the signal to a binary data stream composed of one and other data states representing reflected light levels from droplet-covered and uncovered regions on the surface, respectively. The data stream is processed to compute the weight of glue sprayed on the surface.

Method for monitoring and controlling the distribution of droplets on a

Apparatus for monitoring the weight of glue sprayed on a veneer surface, where the light reflectance from droplet-covered regions on the surface differs from that of uncovered surface regions. A beam of light is directed onto the sprayed surface of a relatively moving veneer, and the light reflectance from a zone within the illuminated surface area is detected to produce a signal which varies according to instantaneously detected reflected light level. A signal-handling circuit in the apparatus transforms the signal to a binary data stream composed of one and other data states representing reflected light levels from droplet-covered and uncovered regions on the surface, respectively. The data stream is processed to compute the weight of glue sprayed on the surface.

Growing community of inventors

Portland, OR, United States of America

James F Holmes