Our Background Suppression Photoelectric Sensors are designed for applications requiring the sensor to see a target very close to a reflective background. This background suppression is particularly effective when the target and background have similar reflectivity (for example, light returned to the sensor from the target is roughly equal to the light reflecting from the background) or when dark targets are to be sensed against a lighter, more reflective background.
Background Suppression Photoelectric Sensors
Short-range Background Suppression Sensors
Our Bulletin 42BA Short-range Background Suppression Sensors offer high background suppression performance at sensing ranges up to 200 mm (8 in.). This type of sensing capability is desirable in applications where a shiny background is present or where there is no easy access for using a reflector.
Long-range Background Suppression Sensors
Our Bulletin 42BT Long-range Background Suppression Sensors come in a robust, compact package. Two adjustable sensing ranges are available in separate models for both 1 m or 2 m maximum sensing distances. These sensors are ideal for mounting on a conveyor line or vibratory bowl feeder.
Long-range Background Suppression Sensors
Our Bulletin 42BC Long-range Background Suppression Sensors offer high background suppression performance at sensing ranges up to 2 m (6.6 ft). This sensing capability fits applications where standard transmitted beam or retro-reflective sensing is not practical due to lack of easy access to both sides of the target or when economics is a major factor.