What is meant by minimum object sensitivity and does it mean the same as optical pitch or beam spacing?
Minimum object sensitivity refers to the smallest object (diameter) that the light curtain can detect. It is commonly stated as the resolution of the light curtain and is also referred to as detection capability. Optical or beam spacing refers to the distance from the center line of one beam to the center line of the next beam. It is important to understand that it is possible for an object to be in such a position that it does not block the path of a single beam even though it is the same diameter of the optical pitch. Therefore the resolution of a light curtain is equal to the optical pitch plus one lens diameter.
