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  • Operating Principles for Photoelectric Sensors
    These sensors use light sensitive elements to detect objects and are made up of an emitter (light source) and a receiver. Four types of photoelectric sensors are available. Direct Reflection (Diffused) - emitter and receiver are housed together and use the light reflected directly off the object
  • Analog Distance Measurement Photoelectric Sensors
    a wider range of functions than ever before. The longer range characteristics of contemporary photoelectric sensors have enabled new designs to operate in environments that would have destroyed conventional photoelectric designs just a few years ago. Advancements in emitters, receivers, lenses
  • A background check for photoelectric sensors
    to focus reflections from a target and from the background on two different light receivers. The sensor decides whether there is a target present based on which receiver is getting more light. Electronic background suppression uses a similar logic about reflections but employs a continuous array
  • Sensor Sense: Seeing the light
    All photoelectric sensors use a light source to signal the presence or absence of an object. There are three basic methods of photoelectric sensing. All sensors have a light source or transmitter (TX) and a light detector or receiver (RX). Both thru-beam and retroreflective sensors are usually
  • Ultrasonic sensors
    monitor if levels become too low (dry-up) or too high (overflow.) can measure distance without contact. They bridge the gap between proximity and photoelectric sensing. They possess a longer sensing distance than inductive or capacitive proximity sensors and remain unaffected by target color, ambient
  • Light Sensors
    Light sensors often use an infrared LED as a light source. Infrared LEDs have a greater intensity than LEDs that emit visible light. And when infrared photodiodes are used the sensors are relatively insensitive to ambient light. Photoelectric light sources are often modulated at a given frequency
  • The Self-Contained Thru-Beam Sensor - White Paper
    . When they first arrived on the scene, photoelectric sensors debuted as thru-beam devices using lights and reflectors. Over the years, they've blossomed into full lines of specialized designs, each excelling at a certain job. Many sensors today typically consist of a relatively complex system

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