Tag Archives: diffuse

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

Photoelectric Basics – Distance Measuring

Some photoelectric applications require not only knowing if the object is present or not but exactly where the object is while providing a continuous or dynamic value representative of the objects location.  For instance, if a robot is stacking a … Continue reading

Posted in All posts, Object Detection Sensors, Photoelectric Sensors | Tagged , , , , , , , , , , | 1 Comment

Photoelectric Output Operate Modes and Output Types

Photoelectric sensors are used in a wide variety of applications that you encounter every day. They are offered in numerous housing styles that provide long distance non-contact detection of many different types of objects or targets. Being used in such … Continue reading

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

Photoelectric Basics – Light On or Dark On

Recently I was asked if light on and dark on for a photoelectric sensor was the same as normally open and normally closed.  The short answer is yes, but I think it justifies more of an explanation.  In the world … Continue reading

Posted in All posts, Inductive Proximity Sensors, Photoelectric Sensors | Tagged , , , , , , , , | Leave a comment

Shedding the Light on Diffuse Mode Photoelectric Sensors

Photoelectric sensors have solved numerous industrial applications over the years. There are basically three different sensing modes. The first is diffuse or reflex mode, next is retro reflective, which requires a reflector, and the third is through beam, transmitted or opposed. These field devices provide an excellent means of detecting target at a distance without contacting the object. All of the sensing modes are based on the sensor’s ability to detect a change in light reaching the sensor’s receiver. In this posting, we will review the diffuse or reflex photoelectric sensor. Continue reading

Posted in All posts, Photoelectric Sensors | Tagged , , , , , , , , , | 1 Comment