{{#pushedProductsPlacement4.length}} {{#each pushedProductsPlacement4}}
{{product.defLight}}
{{#if company.requestButtonsVisibility.requestButtonQuestion == "ACTIVE"}}
{{elseif company.requestButtonsVisibility.requestButtonWhereToBuy == "ACTIVE"}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement4.length}}
{{#pushedProductsPlacement5.length}} {{#each pushedProductsPlacement5}}
{{product.defLight}}
{{#if company.requestButtonsVisibility.requestButtonQuestion == "ACTIVE"}}
{{elseif company.requestButtonsVisibility.requestButtonWhereToBuy == "ACTIVE"}}
{{/if}}
{{product.productLabel}}
{{product.model}}

{{#each product.specData:i}} {{name}}: {{value}} {{#i!=(product.specData.length-1)}}
{{/end}} {{/each}}

{{{product.idpText}}}

{{productPushLabel}}
{{#if product.newProduct}}
{{/if}} {{#if product.hasVideo}}
{{/if}}
{{/each}} {{/pushedProductsPlacement5.length}}
reflex type photoelectric sensor / diffuse reflective / with background suppression / with foreground suppression
reflex type photoelectric sensor

Maximum range: 10 mm - 300000 mm

Photoelectric sensors and systems use visible or infrared light to detect many different kinds of objects without contact, regardless of their material, quality and consistency. Whether standard or programmable ...

photoelectric sensor with background suppression / with foreground suppression / retroreflective / diffuse reflective
photoelectric sensor with background suppression
M18-4 SERIES

Maximum range: 0 mm - 6000 mm

... barrel sensor protected by a 316 stainless steel housing that resists exposure to harsh chemicals and washdown conditions. - Complete family of sensors, all housed in the popular 18 mm threaded metal ...

See the other products
BANNER ENGINEERING CORP.
photoelectric sensor with background suppression / with foreground suppression / diffuse reflective / retroreflective
photoelectric sensor with background suppression
M18 SERIES

Maximum range: 0 mm - 20000 mm

... barrel sensor protected by a 316 stainless steel housing that resists exposure to harsh chemicals and washdown conditions. - Complete family of sensors, all housed in the popular 18 mm threaded metal ...

See the other products
BANNER ENGINEERING CORP.
coaxial reflective photoelectric sensor / with background suppression / retroreflective / rectangular
coaxial reflective photoelectric sensor
QMH26 SERIES

Maximum range: max 3000.0 mm

... demanding photoelectric sensing environments - Hygienic design for easy cleaning - Works well for applications where food or materials may come in contact with the sensor and return to the processing ...

See the other products
BANNER ENGINEERING CORP.
photoelectric sensor with background suppression / diffuse reflective / retroreflective / through-beam
photoelectric sensor with background suppression
DS18 SERIES

Maximum range: max 20.0 m

Wide Beam Barrel-Mount Sensor - Bright output LED indicates object is within the sensor’s field of view - Patented wide-beam retroreflective models for enhanced ease of alignment - 10 ...

See the other products
BANNER ENGINEERING CORP.
rectangular photoelectric sensor / infrared / fiber optic / IP67
rectangular photoelectric sensor
QS18 SERIES FIBER OPTIC AMPLIFIER

Plastic or glass fiber optic sensing in the popular World-Beam QS18 sensor housing. - Self Contained - Easily Mounted - IP67 Water Resistance

See the other products
BANNER ENGINEERING CORP.
through-beam photoelectric sensor / rectangular
through-beam photoelectric sensor

Maximum range: 1100 mm - 100000 mm

With their excellent repeatability, our through-beam sensors are ideal for positioning tasks. They detect objects regardless of their surface, color and material. The transmitter and receiver are located in separate housings. ...

photoelectric sensor with background suppression / diffuse reflective / reflex type / through-beam
photoelectric sensor with background suppression

Maximum range: 12 mm - 13000 mm

Energetic diffuse sensors are ideal for the detection of differences in contrast. They detect objects depending on their surface, color and material. They are inexpensive, easy to mount and align. Diffuse sensors ...

rectangular photoelectric sensor / fiber optic / for small parts / for high-temperature applications
rectangular photoelectric sensor

If you do not have the necessary space to house a discrete optical sensor, your only suitable option would be to use fiber optics. Plastic fiber optics are the perfect choice if there is special requirements for robustness ...

through-beam photoelectric sensor / rectangular
through-beam photoelectric sensor

Maximum range: 2 m

Our multifunctional, high-resolution BLA light band combines up to three different parallel measurement results in one device: you can identify parts, determine positions and count objects. Numerous measurement modes are available to ...

cylindrical photoelectric sensor / miniature / long-range / IP67
cylindrical photoelectric sensor
MICROmote®

Maximum range: 8 mm - 4000 mm

... modular system of the MICROmote sensors with innovative sensor elements meets your individual requirements: a variety of housing configurations ensure an especially high degree of design freedom; precise ...

photoelectric sensor with background suppression / diffuse reflective / rectangular / infrared
photoelectric sensor with background suppression
O8H2xx series

Maximum range: 80 mm

... for remote setting Photoelectric miniature sensor with maximum precision The new powerful O8 sensor is an optimum choice for applications where space is at a premium such as assembly ...

See the other products
ifm electronic
3D photoelectric sensor / rectangular
3D photoelectric sensor
O3D3 series

Maximum range: 0.3 mm - 5 mm

... colour or texture of the handling units change, conventional sensors reach their limits. All these problems are unknown to completeness monitoring on the basis of 3D sensors: The 3D sensor ...

See the other products
ifm electronic
diffuse reflective photoelectric sensor / through-beam / infrared / compact
diffuse reflective photoelectric sensor
O6x21x series

Maximum range: 0 m - 15 m

... extraneous light immunity. Besides energetic diffuse reflection sensors the units are also available as throughbeam sensors. All models are equipped with a 4-pole M8 connector. The sensors ...

See the other products
ifm electronic
photoelectric sensor with background suppression / for food industry applications
photoelectric sensor with background suppression
O6 WetLine

Maximum range: 0 m - 10 m

... high-performance “O6 WetLine” photoelectric sensors is a small powerful photocells for the food industry and has the best optical performance. It is built with a stainless steel housing and it easily ...

See the other products
ifm electronic
photoelectric sensor with background suppression / compact
photoelectric sensor with background suppression
07x2xx series

Maximum range: 0 m - 1.5 m

... compact O7 photoelectric sensors comes into play. The very precise background suppression is particularly reliable, even in case of highly reflective objects. The visible light spot, without scattered ...

See the other products
ifm electronic
retroreflective photoelectric sensor / rectangular / laser / IP67
retroreflective photoelectric sensor
0300.RL

Maximum range: 0 mm - 5000 mm

O300.RL Laser Retro-reflective sensor Thanks to their small and very accurate 0.1 mm light beam, O300 laser sensors allow the reliable detection of tiny objects as well as of parts positioned close ...

See the other products
Baumer Group
photoelectric sensor with background suppression / rectangular / laser / IP67
photoelectric sensor with background suppression
O300.GL

Maximum range: 0 mm - 250 mm

O300.GL Laser Diffuse sensor with background suppression Thanks to their small and very accurate 0.1 mm light beam, O300 laser sensors allow the reliable detection of tiny objects as well as of parts ...

See the other products
Baumer Group
photoelectric sensor with foreground suppression / rectangular / laser / IP67
photoelectric sensor with foreground suppression
O300.SL

Maximum range: 0 mm - 250 mm

... accurate 0.1 mm light beam, O300 laser sensors allow the reliable detection of tiny objects as well as of parts positioned close together. With a fast response time of < 0.25 ms and their high repeatability, the sensors ...

See the other products
Baumer Group
through-beam photoelectric sensor / rectangular / laser
through-beam photoelectric sensor
0300.EL

O300.EL / O300.TL Through Beam sensor Thanks to their small and very accurate 0.1 mm light beam, O300 laser sensors allow the reliable detection of tiny objects as well as of parts positioned close ...

See the other products
Baumer Group
diffuse reflective photoelectric sensor / rectangular / laser / IP67
diffuse reflective photoelectric sensor
0300.RL

Maximum range: 0 mm - 250 mm

O300.RL Laser Diffuse sensor with intensity difference Thanks to their small and very accurate 0.1 mm light beam, O300 laser sensors allow the reliable detection of tiny objects as well as of parts positioned ...

See the other products
Baumer Group
photoelectric sensor with background suppression / rectangular / red light / compact
photoelectric sensor with background suppression
HT 5.1

Maximum range: 0 m - 0.4 m

Cubic diffuse sensor with background suppression for standard detection tasks. The range is adjusted using a potentiometer. These red-light sensors in the compact plastic housing facilitate robust object ...

See the other products
Leuze electronic GmbH + Co. KG
rectangular photoelectric sensor / infrared / laser / red light
rectangular photoelectric sensor
46C series

Maximum range: 0 m - 120 m

With large operating ranges of up to 150 m and many technical highlights, the new sensor family of the 46C series offers up to 80% more function reserve and thereby ensures maximum system availability. In all areas of ...

See the other products
Leuze electronic GmbH + Co. KG
polarized retroreflective photoelectric sensor / rectangular / red light / LED
polarized retroreflective photoelectric sensor
PRK 18B

Maximum range: 0 m - 6 m

The newly calibrated aBEAM optics of the PRK 18B retro-reflective photoelectric sensor are so accurate that time-consuming alignment is no longer necessary. This saves time and, above all, extensive mounting ...

See the other products
Leuze electronic GmbH + Co. KG
retroreflective photoelectric sensor / rectangular / infrared / red light
retroreflective photoelectric sensor
49c series

Maximum range: 5 m - 120 m

Even in times of constant increases in efficiency, the old rule "the more the better" holds true. Especially when it comes to, e.g., a reduction in system failures with increasing soiling, large operating ranges or the reliable detection ...

See the other products
Leuze electronic GmbH + Co. KG
through-beam photoelectric sensor / rectangular / LED / miniature
through-beam photoelectric sensor
LSR 2 series

Maximum range: 0 m - 1.6 m

... these classic throughbeam photoelectric sensors are predestined for the reliable detection of small parts. Their miniature format also allows them to be mounted in constrained spaces. With the LSR 2 ...

See the other products
Leuze electronic GmbH + Co. KG
full-spectrum photoelectric sensor
full-spectrum photoelectric sensor
LR-W

See the other products
Keyence Deutschland
through-beam photoelectric sensor / rectangular / laser
through-beam photoelectric sensor
LR-T series

Maximum range: 60 mm - 5000 mm

The LR-T series is a range of reflective sensors from Keyence that is suitable for applications that need detection of targets at pre-determined positions. The series operates with a level sensing or web tension control. ...

See the other products
Keyence Deutschland
through-beam photoelectric sensor / rectangular / laser / digital
through-beam photoelectric sensor
LV-N series

Maximum range: 120 mm - 600 mm

The LV-N Series is composed of Visible Red Laser Beam Spots. The spots are capable of detecting and focusing even with long distances to cater difficult applications. They completely follow Class 1 laser requirements. In addition, ...

See the other products
Keyence Deutschland
through-beam photoelectric sensor / rectangular / laser / digital
through-beam photoelectric sensor
LV-Neo Serie

Maximum range: 100 mm - 1200 mm

It is a device that is made used for laser detection digitally along with the visible beam suitable for longer distance. There are various features available with the device that makes it highly appealing. This is a device that is of ...

See the other products
Keyence Deutschland
through-beam photoelectric sensor / rectangular / laser / high-power
through-beam photoelectric sensor
PZ-G series

Maximum range: 0.1 m - 40 m

... LED-type photoelectric sensors that has high-power performance. It has one-touch mounting brackets saving significant time during installation and easy optical axis alignment with light-receiving indicator. ...

See the other products
Keyence Deutschland
through-beam photoelectric sensor / rectangular / cylindrical / infrared
through-beam photoelectric sensor

Maximum range: 50 m

In through-beam photoelectric sensing, also known as opposed mode, the transmitter and emitter are in separate housings. Light emitted from the transmitter is aimed directly at the receiver. When an object breaks the ...

See the other products
Pepperl+Fuchs GmbH
retroreflective photoelectric sensor / rectangular / cylindrical / infrared
retroreflective photoelectric sensor

Maximum range: 50 m

... light path is established between the sensor and a special reflector. A target is detected when it breaks the light beam. Typical retro-reflective sensors provide a longer sensing range when compared ...

See the other products
Pepperl+Fuchs GmbH
photoelectric sensor with background suppression / with foreground suppression / diffuse reflective / rectangular
photoelectric sensor with background suppression

Maximum range: 2500 mm

... Darker colored or matte finished targets provide less reflectivity; therefore the sensitivity must be increased or the entire sensor must be positioned closer to the target. When this situation occurs, care should be ...

See the other products
Pepperl+Fuchs GmbH
rectangular photoelectric sensor / digital
rectangular photoelectric sensor

Maximum range: 100 mm - 1000 mm

... triangulation sensor. These photoelectric sensors can be configured as background suppression sensors, background evaluation sensors, and in window ...

See the other products
Pepperl+Fuchs GmbH
fiber optic photoelectric sensor / rectangular / cylindrical / for high-temperature applications
fiber optic photoelectric sensor

... optic sensors provide a sensing solution for applications involving small targets or unfavorable conditions. Fiber optic sensors & cables can be used in much smaller areas, in harsher environments, at ...

See the other products
Pepperl+Fuchs GmbH
diffuse reflective photoelectric sensor / retroreflective / through-beam / cylindrical
diffuse reflective photoelectric sensor

Maximum range: 0.06 m - 8 m

... Bernstein optoelectronic metric sensors come in three varieties (M12x1, M18x1 and M30x1,5). Specially designed to meet industry demands, these sensors carry distinct features in enclosure material and ...

diffuse reflective photoelectric sensor / retroreflective / through-beam / rectangular
diffuse reflective photoelectric sensor

Maximum range: 0 m - 6 m

Bernstein offers a full range of sensors so that users can choose the Bernstein optoelectronic sensor to meet their technical requirements. There are two groups that optoelectronic sensors ...

diffuse reflective photoelectric sensor / retroreflective / through-beam / rectangular
diffuse reflective photoelectric sensor

Maximum range: 0.04 m - 20 m

BERNSTEIN offers a complete and a wide variety of the optoelectronic sensors that will surely satisfy your desire for technicality. Classifying all the optoelectronic sensors into different groups will ...

diffuse reflective photoelectric sensor / cylindrical / infrared / analog
diffuse reflective photoelectric sensor

Maximum range: 0 mm - 200 mm

Berstein's Cylindrical housings Ø 20 mm, having a sensing range maxing up at mm with infrared light and M12 connection connector version, offers good performance and the IP 67 class protection coupled with short circuit proof and Ø20 ...

reflex type photoelectric sensor / rectangular / blue light
reflex type photoelectric sensor
BlueLight

Maximum range: 1200 mm

BlueLight sensors SensoPart’s blue light technology offers greater detection efficiency than conventional red light proximity sensors in a great many applications; particularly those involving dark or ...

See the other products
SensoPart Industriesensorik GmbH
photoelectric sensor
photoelectric sensor
FT 25 RA-60-PSU-M4M

The FT 25 RA-60-PSU-M4M Series of Miniature Distance Sensor; manufactured by Sensopart; is configured with a compact enclosure suitable for an easy integration and high flexibility. It features an adjustable window mode ...

See the other products
SensoPart Industriesensorik GmbH
photoelectric sensor
photoelectric sensor
FT 55 RLAP

Laser distance sensor for measurement and control tasks with all object surfaces at long scanning distances

See the other products
SensoPart Industriesensorik GmbH
photoelectric sensor
photoelectric sensor
FT 50 RLA

The FT 50 RLA Series is a laser distance sensor developed by Sensopart. It is built to offer a fast and accurate measurement. This device also offer a precise positioning and detection of wide range of objects. The unit ...

See the other products
SensoPart Industriesensorik GmbH
diffuse reflective photoelectric sensor / rectangular / fiber optic
diffuse reflective photoelectric sensor
FL 20 series

Maximum range: 100 mm

The ESP FL 20 series fiber optic amplifiers are a perfect choice for different optical sensor technology requirements; and are recommendable for use in small space areas. They offer high-quality performance; high quality ...

See the other products
SensoPart Industriesensorik GmbH
diffuse reflective photoelectric sensor / cubic / laser / long-range
diffuse reflective photoelectric sensor
HLA

High-accuracy detection of very small targets using the direct reflection method. Features Detecting a long distant and vary small spot. Switching output type: 0,1 mm dia at 80 mm Line-up of "contrast setting" and "distance ...

See the other products
Azbil Europe
diffuse reflective photoelectric sensor / cubic / laser
diffuse reflective photoelectric sensor
HLB

Very small or thin parts can be detected by differences in distance, unaffected by colour of reflection rate of the target object. Features Size: 12 x 16,3 x 27 mm Precise detection of minute differences in distance (or level) ...

See the other products
Azbil Europe
through-beam photoelectric sensor / cylindrical / rectangular / infrared
through-beam photoelectric sensor
HPF

Maximum range: 0 m

... head dia. (1.0 mm) in the industry. Sleeve shape is used to maintain a small distance between the target object and the sensor in limited spaces. Side view shape emits light to the side, its D-shape cut-out on ...

See the other products
Azbil Europe
through-beam photoelectric sensor / rectangular / infrared / digital
through-beam photoelectric sensor
HPX-AG/HPX-EG

Sensing satisfaction - Freedom from frequent adjustments. Description Two models are available, both offering easy operation and a wealth of functions. Compatible with an extensive range of applications. Fuss-free setting and adjustment. ...

See the other products
Azbil Europe
through-beam photoelectric sensor / rectangular / infrared / long-range
through-beam photoelectric sensor
HPX

High sensitivity over a long scanning distance of 800 mm (Thru Scan Model), easy-to-use functions & structure, and high reliability. Features Quick response (50 s) plus mark detection Self-diagnostic LED's plus self-diagnostic ...

See the other products
Azbil Europe
through-beam photoelectric sensor / cylindrical / high-performance
through-beam photoelectric sensor
ULM series

Maximum range: 100 m

... specifically constructed to manipulate the edges of the bands or indicate several band disturbances so is the photoelectric barrier and the reflex sensors.

through-beam photoelectric sensor / cylindrical / fiber optic / IP67
through-beam photoelectric sensor
ULL series

Maximum range: 6 m

High temperature through beam sensors Series ULL To be used with fibre-optic Up to 350 °C With intermediate repeater

diffuse reflective photoelectric sensor / rectangular / cylindrical / infrared
diffuse reflective photoelectric sensor

Maximum range: 10 mm - 10000 mm

The reflective sensors in this series are developed for compatibility with various applications in the industry, particularly when it comes to the automation field. The sturdy casing and compact design are two of the ...

retroreflective photoelectric sensor / rectangular / cylindrical / infrared
retroreflective photoelectric sensor

Maximum range: 200 mm - 10000 mm

Di-soric manufactures a wide variety of retro-reflective sensors that are ideal for use in different kinds of operations. The sensors have a compact layout, and have a rigid enclosure, which has an ingress ...

through-beam photoelectric sensor / rectangular / cylindrical / infrared
through-beam photoelectric sensor

Maximum range: 0.5 m - 50 m

Through beam sensors are Di-soric laser beam sensors which are commonly used in automation industries, where there is a need for the detection of minuscule objects. It has a sturdy housing ...

diffuse reflective photoelectric sensor / rectangular / laser
diffuse reflective photoelectric sensor

Maximum range: 50 mm - 400 mm

Laser Diffuse Sensor Large detection range Two switching points definable - window function Foreground and background suppression Teach key + remote teach with key-lock function Red light laser with automatic adjustment ...

through-beam photoelectric sensor / rectangular / red light
through-beam photoelectric sensor
VE, VR

Maximum range: 5 m - 15 m

The VE/VR Seires, manufactured by Delta®, is an optical barrier that is used for hefty industries in which it has rough surroundings such as coke plantation, rolling mills and the like. It features a visible red diode emission that has ...

reflex type photoelectric sensor / cylindrical
reflex type photoelectric sensor
LED alignment

Maximum range: 0.1 m - 7 m

The MCS-655P is a photo-reflective NPN open collector photo sensor with Light/Dark activated output that operates up to 1000 Hz. For simplified installation purposes the integral LED aids in the MCS-655P model comes ...

reflex type photoelectric sensor / cylindrical
reflex type photoelectric sensor
NPN output

Maximum range: 0.1 m - 7 m

The MCS-655M is a photo-reflective NPN open collector photo sensor with Light/Dark activated output that operates up to 1000 Hz. For simplified installation purposes the integral LED aids in the MCS-655M model comes in ...

reflex type photoelectric sensor / cylindrical / high-performance / fiber optic
reflex type photoelectric sensor
FMS30-34U

diffuse reflective photoelectric sensor / cylindrical
diffuse reflective photoelectric sensor
FxR18 series

through-beam photoelectric sensor / cylindrical
through-beam photoelectric sensor
FxR18 series

diffuse reflective photoelectric sensor / cylindrical / fiber optic
diffuse reflective photoelectric sensor
AFOI series

Maximum range: 250 mm - 5000 mm

The AFOl series is manufactured by Comus Group. It is a fiber optic photoelectric sensor, that provides non contact detection, positioning, counting, and supervision. It is made of robust glass, and can ...

diffuse reflective photoelectric sensor / reflex type / cylindrical / rectangular
diffuse reflective photoelectric sensor
INFRARED SERIES

Maximum range: 50 mm - 1200 mm

The IS-120 series by Rechner is an Optoelectronic Sensors (IS) which is designed to be used as a light sensor or reflection light barriers. The whole equipment comprises of a light transmitter and a receiver ...

retroreflective photoelectric sensor / through-beam / rectangular
retroreflective photoelectric sensor
SP 2000 series

Maximum range: 0 m - 45 m

The SPACEPAK SP 2000 Series manufactured by TELCO Sensor is a photoelectric thru beam sensor that is made up with a compact and rectangular housing of 50 x 50 mm. This device is equipped ...

See the other products
Telco Sensors
through-beam photoelectric sensor / cylindrical / with integrated amplifier
through-beam photoelectric sensor
SM 3000 series

Maximum range: 1 m - 15 m

The 3000 series is integrated with both power and output indicator. The unit provides either cable or plug connection. It also features sensitivity adjustment, by utilizing a control input. Additionally, the product range functions in ...

See the other products
Telco Sensors
through-beam photoelectric sensor / cylindrical
through-beam photoelectric sensor
SM 3000/CAT2 series

Maximum range: 1 m - 10 m

The SM 3000/CAT2 Series of Spacemaster, manufactured by Telco Sensors, is designed with an operation mode and maximum sensing range. This device can generate with a power and output indicator of 10 to 30 V DC supply voltage. ...

See the other products
Telco Sensors
through-beam photoelectric sensor / cylindrical
through-beam photoelectric sensor
SM 6000 series

Maximum range: 1 m - 6 m

The SM 6000 is a unit manufactured by Telco Sensors company. It is a thru beam that is 1-6 m in measurement. Further, it has a high tolerance to hostile environments. Further, the unit has low current consumption. It ...

See the other products
Telco Sensors
through-beam photoelectric sensor / cylindrical
through-beam photoelectric sensor
SM 7000 series

Maximum range: 0 m - 20 m

The 7000 series is a self-contained transmitter SMT with a receiver SMR with either a 0.5 ms response time and a 7 metre range or with a 2 ms response time and a 20 metre range . The unit is used in thru-beam mode with an SMP for diffuse ...

See the other products
Telco Sensors
polarized retroreflective photoelectric sensor / cylindrical / red light
polarized retroreflective photoelectric sensor

Photoelectric sensors are light emission principle electronic transducers. They provide an output signal when an object comes into their sensing area. They are available in the cylindrical M18, square, ...

reflex type photoelectric sensor / cylindrical / red light
reflex type photoelectric sensor
M18

Photoelectric sensors FT18 are light emission principle electronic transducers. They provide an output signal when an object comes into their sensing area. They are available in the cylindrical M18 version ...

reflex type photoelectric sensor / rectangular / infrared
reflex type photoelectric sensor

The photoelectric sensors or photocells are provitive electronics by Aeco. The sensors were built using the principles of light emissions integrated with the electronics. They are made ...

reflex type photoelectric sensor / cylindrical / fiber optic
reflex type photoelectric sensor
M18

These sensors work electronically like any other photoelectric sensor, with the difference that the light emitted and received is transported by a fiber optic, which has a very small ...

How to choose this product

photoelectric-sensor

Photoelectric sensors use a light beam or natural infrared radiation to detect the presence or proximity of objects or individuals. The devices are reflex or through-beam. Some gas detectors and fire-prevention systems use similar systems.

Applications

Photoelectric proximity sensors are used in automated conveyor systems to control material flow and on machine tools. Presence sensors are used for secure access control. Smoke and flame sensors also use photoelectric devices.

Technologies

Photoelectric proximity sensors use a light beam. Reflective systems detect objects that reflect emitted light, while through-beam systems detect objects that break the beam bounced off a reflector.

Reflex systems with polarized light and a depolarizing reflector are available; detection is more precise, especially for reflective objects. The surfaces are generally non-polarizing, except for some plastics.

Passive photoelectric presence sensors detect the infrared rays emitted by a person. Active models are through-beam.

Smoke sensors are sensitive to the reflective effects of smoke. Flame sensors detect infrared radiation. Laser and infrared gas sensors use the optical absorption properties of the gas.

How to choose

Choice of a photoelectric detector depends on required range and sensitivity in the given work environment.

Advantages

- No-contact detection