With a known, stable intensity level or background signal level (which ever best suits the process); objects passing through the sensor area will produce a repeatable signal proportional to the object’s size and translucency. Materials like water have a smaller signal per square area than objects like bottle caps, popsicle sticks or meats.
Additional, real-time analysis can be configured to further help discriminate the object(s) of interest from background noise and interference from objects and materials other than those of interest. This system can monitor and control up-to eight Optical Sensing processes simultaneously.
There are two methods of object detection, Absolute and Relative. Each Optical Sensor is configured to use one method or the other.