By combining long-range sensing with automatic dynamic calibration and a damage-resistant mounting option, new OL photoelectric sensors from efector (Exton, PA) are said to solve many of the problems typical in conveyor applications.
Thanks to an integral AS-i interface, efector's (Exton, PA)T-series IND sensor essentially is two inductive proximity switches in one unit, functioning as a replacement for a standard switchbox by accepting up to 31 valves in one AS-i system.
A white paper from Electro Cam (Roscoe, IL) titled "Internal High-Speed Logic" explains in plain language what a programmable limit switch is and how it performs machine logic by using inputs from sensors and switches to trigger outputs such as solenoids.
Omron's (Schaumburg, IL) new E3S-CD photoelectric sensor detects presence/absence and basic position of a label on a glass or plastic container, regardless of the color or luster of the label or container.
The KT10 from SICK Optic-Electronic (Bloomington, MN) is a 10-color contrast sensor that is said to read any contrast in color 25ꯠ times/sec. The operator pushes a button to "teach" the sensor, which then "looks" at the contrast it is required to sense and selects the proper light source for best results.
OptoSwitch® from Clarostat (Richardson, TX) offers OEM drop-in replacements for Honeywell, Optek and other optoelectronic sensors, as well as custom solutions to fit specific design and sensing requirements.