Photoelectric Sensors

Photoelectric sensors detect and measure physical objects or quantities by emitting a field or beam of electromagnetic radiation, an object is detected by measuring alterations in the return signal. There are 3 main types of photoelectric sensors which provide reliable detection, these are through-beam, retro-reflective and diffuse. The basic function of each is to detect the presence or absence of objects or measure the distance to the object.


Through-beam Sensors


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 are capable of detecting almost any object, irrespective of colour or angular motion.


Retro-reflective Sensors


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.


Diffuse Sensors


Diffuse sensors (proximity sensor) are easier to install as only one device has to 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. 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 back 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. A diffuse mode sensor with background suppression is less sensitive to the target colour. They can also use a visible red light or infrared light sources.


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Omschrijving Prijs Sensor Style Detection Type Detection Range Output Type Electrical Connection Maximum AC Voltage Maximum DC Voltage Optical Technology Terminal Type Light Source IP Rating Maximum Current Interface Response Time
RS-stocknr. 739-6673
FabrikantnummerO1D100
Fabrikantifm electronic
€ 306,60
Each
Aantal stuks
Block Diffuse 0.2 → 10 m PNP M12 Connector - 30V - - Laser Light IP67 200 mA - -
RS-stocknr. 444-3619
FabrikantnummerXUX0ARCTT16
€ 186,00
Each
Aantal stuks
Block Multimode 1.3 m, 2 m, 11 m, 40 m Relay 5-Terminal Screw 240V 240V - - Infrared IP65, IP67 3 A, 500 mA - <25 ms
RS-stocknr. 122-0713
FabrikantnummerWL100-2P4439
FabrikantSick
€ 74,00
Each
Aantal stuks
Block Retroreflective 0.01 → 7.2 m PNP 4-Pin M8 Connector - 30V - M8 Connector LED IP67 30 mA - 0.5 ms
RS-stocknr. 878-7948
FabrikantnummerXUK1ARCNL2H60
€ 112,00
Each
Aantal stuks
Compact Retroreflective Maximum of 10 m Relay 5-Wire Cable 2m 240V 240V - Cable LED IP65 3 A - -
RS-stocknr. 512-4640
FabrikantnummerXUK1ARCNL2
€ 89,70
Each
Aantal stuks
Compact Retroreflective 7 m Relay 5-Wire Cable 2m 240V 240V - - Infrared IP65 3 A - <25 ms
RS-stocknr. 405-7268
FabrikantnummerT18SP6RQ
FabrikantBanner
€ 62,00
Each
Aantal stuks
Barrel Through Beam (Receiver) 20 m PNP M12 Connector - 30V - - Infrared IP69K 150 mA - 3 ms
RS-stocknr. 289-2491
FabrikantnummerWL150-P430
FabrikantSick
€ 110,00
Each
Aantal stuks
Block Retroreflective 2.4 m PNP 4-Pin M8 Connector - 30V - - LED IP67 100 mA - <=0.5 ms
RS-stocknr. 714-1587
Fabrikantnummer42JS-P2MPB1-F4
FabrikantAllen Bradley
€ 44,60
Each
Aantal stuks
Block Retroreflective 0.025 → 3.5 m PNP 4-Pin Connector - 30V - - - IP67 - - 1 ms
RS-stocknr. 768-5881
FabrikantnummerE3FARP21
FabrikantOmron
€ 59,90
Each
Aantal stuks
Barrel Retroreflective 0.1 → 4 m PNP 4-Pin M12 Connector - 30V - - LED IP67, IP69K 25 mA - 0.5 ms
RS-stocknr. 768-9461
FabrikantnummerWL9-3P2430
FabrikantSick
€ 110,00
Each
Aantal stuks
Block Retroreflective 0 → 4 m PNP 4-Pin M12 Connector - 30V - - LED IP66, IP67, IP69K 100 mA - <0.5 ms
RS-stocknr. 228-992
FabrikantnummerGLV18-8-200/73/120
FabrikantPepperl + Fuchs
€ 52,10
Each
Aantal stuks
Barrel Diffuse 200 mm PNP 4-Pin M12 Connector - 30V - - LED IP67 100 mA - <=1 ms
RS-stocknr. 374-2044
FabrikantnummerE3ZR86
FabrikantOmron
€ 97,00
Each
Aantal stuks
Block Retroreflective 100 mm → 4 m PNP 4-Pin M8 Connector - 26.4V - - LED IP69K 100 mA - 1 ms
RS-stocknr. 753-0325
FabrikantnummerXUK2APANM12R
€ 69,60
Each
Aantal stuks
Compact Through Beam (Receiver) 30 m PNP 4-Pin M12 Connector - 24V - - Infrared IP65 100 mA - <2 ms
RS-stocknr. 814-0361
FabrikantnummerOID200
Fabrikantifm electronic
€ 158,60
Each
Aantal stuks
Barrel Background Suppression 0.03 → 2 m NPN/PNP M12 Connector - 30V - Wire Lead LED IP65, IP67 <75 mA @ 24 V dc IO-Link -
RS-stocknr. 753-0274
FabrikantnummerXUK2AKSNM12T
€ 46,30
Each
Aantal stuks
Compact Through Beam (Emitter) 30 m Solid State 4-Pin M12 Connector - 24V - - Infrared IP65 100 mA - <=2 ms
RS-stocknr. 617-0701
FabrikantnummerE3ZM-R86
FabrikantOmron
€ 169,50
Each
Aantal stuks
Block Retroreflective 100 mm → 4 m PNP 4-Pin M8 Connector - 30V - - LED IP69K 100 mA - 1 ms
RS-stocknr. 729-5113
FabrikantRS PRO
€ 68,53
Each
Aantal stuks
Barrel Retroreflective 0.05 → 7 m PNP 4-Pin M12 Connector - 30V - - LED IP67 100 mA - <=0.5 ms
RS-stocknr. 847-9384
FabrikantnummerQS18VP6LPQ8
FabrikantBanner
€ 105,38
Each
Aantal stuks
Barrel Retroreflective Maximum of 3.5 m PNP 4-Pin M12 Connector - 30V - - LED IP67 <25 mA - 600 μs
RS-stocknr. 753-0283
FabrikantnummerXUK2ARCNL2T
€ 56,00
Each
Aantal stuks
Compact Through Beam (Emitter) 30 m Solid State 2-Wire Cable 2m 240V 240V - - Infrared IP65 3 A - <25 ms
RS-stocknr. 818-0299
FabrikantnummerDS35-B15821
FabrikantSick
€ 381,00
Each
Aantal stuks
Block Background Suppression 50 → 3100 mm NPN/PNP 5-Pin M12 Connector - 30V - M12 Connector Laser Light IP65, IP67 - IO-Link 2.5 ms, 6.5 ms, 12.5 ms, 24.5 ms, 96.5 ms
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