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<h2>What are Photoelectric Sensors?</h2><p>Photoelectric sensors determine the distance, absence, or presence of physical objects by emitting a field or beam of electromagnetic radiation. An object is detected by measuring alterations in the return signal, this is achieved as sensors have an Emitter for emitting light and a Receiver for receiving light. There are 3 main types of photoelectric sensors, through-beam, retro-reflective and diffuse, which vary slightly in the way they function.</p><p>The basic function of each is to detect the presence or absence of objects or measure the distance to the object. You can learn more in our <a href="/web/content/discovery/ideas-and-advice/photoelectric-sensors-guide">guide to photoelectric sensors</a>.</p><h3>Types of Photoelectric Sensors:</h3><p><strong>Through-beam Sensors</strong></p><p><a href="https://uk.rs-online.com/web/c/automation-control-gear/sensors/photoelectric-sensors/?applied-dimensions=4290647141,4290647142,4290683171,4290688368,4294572004">Through Beam Sensors</a> (aka thru-beam) rely on two separate housings, one for the transmitter and one for the receiver, with the transmitter providing a continuous beam of light to the receiver. Each time an object passes through the beam this interrupts the signal between the transmitter and receiver, which in turn causes the receiver to send an electrical signal to the output. Through-beam sensors are suited to long-distance sensing and can detect almost any object, irrespective of colour or angular motion.</p><p><strong>Retro-reflective Sensors</strong></p><p>Retro-reflective photoelectric sensors (retroreflective) have both the transmitter and receiver contained within the same housing but require a reflector opposite to the sensor. The reflector bounces the light beam back to the transmitter until an object breaks the beam. Objects which are highly reflective such as aluminium require sensors with polarising filters. The filter allows the sensor to acknowledge that the reflected light from reflecting materials is different from the reflector.</p><p><strong>Diffuse Sensors</strong></p><p>Diffuse sensors (proximity sensor) are easier to install as only one device must be mounted. This is because the transmitter and receiver are contained within one housing. Diffuse sensors use the reflection from the target object within a predetermined sensing range.</p><p>The transmitter sends out a continuous beam of light, once this hits the target it is diffused in all directions, a part of this light is reflected and recognised by the receiver, the receiver then sends an electrical signal to the output. A special type of diffused mode is background suppression which enables the user to precisely control the sensing range.</p><h3>Applications of Photoelectric Sensors</h3><p>Photoelectric Sensors can be used in various settings, some of which include:</p><ul><li>Food Industry</li><li>Pharmaceutical Industry</li><li>Packaging Plants</li><li>Automotive Industry</li><li>Doors &amp; Gates</li></ul><p>Browse the broad range of Photoelectric Sensors RS Components have to offer and order today for next day delivery.</p>

Browse our broad range of Photoelectric Sensor offers. Also known as Optical Sensors or Diffuse Sensors. Next day delivery on Photoelectric Sensor offers.

Photoelectric Sensors | Optical Sensor | RS Components

Photoelectric Sensors

Buy Laser Sensors. Browse our latest Laser Sensors offers. Free Next Day Delivery.

Laser Sensors | RS

<p>A range of high quality laser sensors. These photoelectric laser sensors offer precise object positioning and the ability to detect very small objects. With a fast response time these laser sensors can also detect objects that are moving quickly.</p>

Buy Retroreflective Sensors. Browse our range of high-quality Retroreflective Sensor offers. Free Next Day Delivery

Retroreflective Sensors | Photoelectric Sensors | RS

<p>Retroreflective Sensors are used in a wide range of industrial and commercial applications. Retroreflective Sensors are some of the most common, effective Photoelectric Sensors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality Retroreflective Sensors from industry-leading brands including Allen Bradley, Banner, Baumer, Omron, Pepperl  Fuchs, Sick, and of course, RS PRO.</p><h2>How do Retroreflective Sensors work?</h2><p>Retroreflective photoelectric sensors have both the transmitter and receiver contained within the same housing but require a reflector opposite to the sensor. The reflector bounces the light beam back to the transmitter until an object breaks the beam. Objects which are highly reflective such as aluminium require sensors with polarising filters. The filter allows the sensor to acknowledge that the reflected light from reflecting materials is different from the reflector.</p><p>Applications for Retroreflective Sensors include:</p><ul><li>Automotive Industry </li><li>Food Industry</li><li>Pharmaceutical Industry</li><li>Packaging Plants</li><li>Doors  Gates</li></ul><p>They possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of Retroreflective Sensors RS have to offer and order today for next day delivery</p>

Buy Through Beam Sensors. Browse our range of high-quality Through Beam Sensor offers. Free Next Day Delivery

<p>Through Beam Sensors are used in a wide range of industrial and commercial applications. Through Beam Sensors are some of the most common, effective Photoelectric Sensors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality Through Beam Sensors from industry-leading brands including Allen Bradley, Banner, Baumer, Omron, Pepperl  Fuchs, Sick, and of course, RS PRO.</p><h2>How do Through Beam Sensors work?</h2><p>Through-beam sensors (aka thru-beam) rely on two separate housings, one for the transmitter and one for the receiver, with the transmitter providing a continuous beam of light to the receiver. Each time an object passes through the beam this interrupts the signal between the transmitter and receiver, which in turn causes the receiver to send an electrical signal to the output. Through-beam sensors are suited to long-distance sensing and can detect almost any object, irrespective of colour or angular motion.</p><p>Applications for Through Beam Sensors include:</p><ul><li>Automotive Industry </li><li>Food Industry</li><li>Pharmaceutical Industry</li><li>Packaging Plants</li><li>Doors  Gates</li></ul><p>They possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of Through Beam Sensors RS have to offer and order today for next day delivery</p>

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Baumer Photoelectric Sensors | RS

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Panasonic Photoelectric Sensors | RS

Buy our range of Omron photoelectric sensors. Browse our latest Omron photoelectric sensors offers. Don't miss out on our latest deals!

Omron Photoelectric Sensors | RS

Buy Optical Sensors. Browse our range of high-quality Optical Sensors offers. Free Next Day Delivery

Optical Sensors | Photoelectric Sensors | RS

<p>Optical Sensors are used in a wide range of industrial and commercial applications. Optical Sensors are some of the most common, effective Photoelectric Sensors used in industry today. They are a popular choice as they last longer, function better, and are incredibly accurate.</p><p>RS offer an extensive selection of high-quality Optical Sensors from industry-leading brands including Allen Bradley, Banner, Baumer, Omron, Pepperl  Fuchs, Sick, and of course, RS PRO.</p><h2>How do Optical Sensors work?</h2><p>Optical Sensors determine the distance, absence, or presence of physical objects by emitting a field or beam of electromagnetic radiation. An object is detected by measuring alterations in the return signal</p><p>Applications for Optical Sensors include:</p><ul><li>Automotive Industry </li><li>Food Industry</li><li>Pharmaceutical Industry</li><li>Packaging Plants</li><li>Doors  Gates</li></ul><p>They possess some key features including</p><ul><li>Extremely long life</li><li>High efficiency</li><li>Low power requirements</li><li>Easy to install and maintain</li><li>Safe and convenient</li></ul><p>Browse the broad range of Optical Sensors RS have to offer and order today for next day delivery</p>

Buy from our selection of photoelectric sensors from Balluff. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Balluff Photoelectric Sensors | RS Components

Browse Banner Photoelectric Sensors. Free Next Day Delivery.

Banner Photoelectric Sensors | RS

<p>Banner is a leading supplier of automation solutions and products within the industrial sphere. Helping to increase efficiency, productivity, and availability of machinery in a variety of industries. Banner photoelectric sensors detect the presence or absence of an object through an emitted light. This beam of light can also detect a change of surface conditions. Sensors are also known as 'photo-eyes'. When the transmitted light is stopped, or reflected by an item, the receiver will then detect the change in the light pattern. This change is measured by the receiver and can recognise the target object.</p><p>Banner manufactures a range of photoelectric sensors to fit every need, however, it can be challenging to decide which is best for a specific application. A range of sensors are available with varying levels of versatility, strength, durability, performance, and size. Other factors such as mounting options and sensing modes should also be considered. Smaller sized sensors are available for more compact spaces with fast response times within high-speed environments suitable for material handling applications.</p><h4>Why choose a photoelectric sensor from Banner's range?</h4><p>Banner photoelectric sensors can identify the presence or absence of a target object. One of the many advantages, of a Banner photoelectric sensor is their ability to detect targets at many different ranges. Another advantage is the long-life status of these sensors. All Banner photoelectric sensors are solid state with a surface mount design and are industrial grade for harsh environments. External factors are considered such as working within environments which include a range of temperatures, and their ability to withstand shock and vibrations, whilst being able to detect almost a plethora of targets.</p><h4>What type of applications are Banner photoelectric sensors suitable for?</h4><p>Banner photoelectric sensors are suitable for use in a variety of industrial applications including manufacturing, medical, material handling, food and beverage and many other industries. There is an emitter and a receiver that makes the sensor work. The setup is dependent upon the application type and the sensor. RS offer a variety of Banner photoelectric sensors available with free next day delivery.</p>

Optical Sensors

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