Tag Archives: pnp

Imagine the Perfect Photoelectric Sensor

Photoelectric sensors have been around for a long time and have made huge advancements in technology since the 1970’s.  We have gone from incandescent bulbs to modulated LED’s in red light, infrared and laser outputs.  Today we have multiple sensing … Continue reading

Posted in All posts, Object Detection Sensors, Photoelectric Sensors | Tagged , , , , , , , , , , , , , | Leave a comment

Industrial Sensing Fundamentals – Back to the Basics: NPN vs PNP

Written by: Andrew Bollinger What’s the difference and why should anyone care? If you’re confused by the terms PNP and NPN, then hopefully this post will shed some light on the differences between the two.  In the context of this … Continue reading

Posted in All posts, Inductive Proximity Sensors, Photoelectric Sensors | Tagged , , , , , , , | 24 Comments