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.RS Components offer an extensive selection of photoelectric sensors for use various industrial applications. Our high-quality products are supplied from leading brands including Omron, Sick, Pepperl + Fuchs Telemecanique Sensors Baumer, Banner and of course RS PRO.

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 can detect 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 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. 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.


...
Voir plus Voir moins

Filtres

Afficher 181 - 200 des 3256 produits
Nombre de résultats par page
Description Prix Sensor Style Detection Type Detection Range Output Type Electrical Connection Switching Mode Maximum AC Voltage Communication Protocol Maximum DC Voltage Optical Technology Terminal Type Light Source IP Rating Maximum Current
N° de stock RS 403-973
Référence fabricantGLV18-6-S/73/120
54,53 €
Each
Unité
Barrel Retroreflective 5.5 m PNP 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 786-5930
Référence fabricantWTB4-3P3161
MarqueSick
142,00 €
Each
Unité
Block Background Suppression 4 → 150 mm PNP 3-Pin M8 Connector - - - 30V - - LED IP66, IP67 100 mA
N° de stock RS 729-5101
MarqueRS PRO
72,86 €
Each
Unité
Barrel Retroreflective 50 mm → 7 m NPN 4-Pin M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 847-9426
Référence fabricantQS18VP6RQ8
MarqueBanner
76,47 €
Each
Unité
Barrel Through Beam (Receiver) 20 m PNP 4-Pin Connector - - - 30V - - LED IP67 25 mA
N° de stock RS 768-5923
Référence fabricantE3FA-DP12 2M
MarqueOmron
61,45 €
Each
Unité
Barrel Diffuse 300 mm PNP 4-Wire Cable 2m - - - 30V - - LED IP67, IP69K 25 mA
N° de stock RS 786-5879
Référence fabricantWL34-R240
MarqueSick
136,00 €
Each
Unité
Block Retroreflective 30 mm → 22 m Relay 5-Terminal Screw - 240V - 240V - - LED IP67 4 A
N° de stock RS 111-3697
Référence fabricantWTB2SC-2P3274
MarqueSick
141,00 €
Each
Unité
Block Background Suppression 4 → 90 mm PNP Cable - - IO-LINK 30V - 4-Pin M8 Connector LED IP67 50 mA
N° de stock RS 374-2016
Référence fabricantE3ZT812M
MarqueOmron
129,60 €
Each
Unité
Block Through Beam (Emitter and Receiver) 15 m PNP 4-Wire Cable 2m - - - 26.4V - - Infrared IP69K 100 mA
N° de stock RS 374-3788
Référence fabricantE3Z-D87
MarqueOmron
99,50 €
Each
Unité
Block Diffuse 1 m PNP 4-Pin M8 Connector - - - 26.4V - - Infrared IP69K 100 mA
N° de stock RS 781-5963
Référence fabricantML300-55-2m-RT/59/103/115
78,98 €
Each
Unité
Block Retroreflective 0 → 2 m PNP Cable - - - 30V - - LED IP65 100 mA
N° de stock RS 877-7398
Référence fabricantHG-C1050-P
MarquePanasonic
454,49 €
Each
Unité
Block Background Suppression 50 mm PNP Cable - - - 24V - - Laser Light IP67 -
N° de stock RS 288-7304
Référence fabricantE3SRS30B430
MarqueOmron
292,60 €
Each
Unité
Block Retroreflective 300 mm PNP 3-Wire Cable 2m - - - 24V - - Infrared IP67 100 mA
N° de stock RS 808-9430
Référence fabricantCX-441-P
MarquePanasonic
126,87 €
Each
Unité
Block Diffuse 2 → 50 mm PNP 4-Wire Cable 2m - - - 24V - - LED IP67 100 mA
N° de stock RS 420-473
Référence fabricantE3SAR86
MarqueOmron
163,10 €
Each
Unité
Block Retroreflective 100 mm → 2 m PNP M12 Connector - - - 30V - - LED IP67 100 mA
N° de stock RS 847-9075
Référence fabricantQS186EQ8
MarqueBanner
57,36 €
Each
Unité
Barrel Through Beam (Emitter) 20 m - 4-Pin M12 Connector - - - 30V - - LED IP67 25 mA
N° de stock RS 729-5214
MarqueRS PRO
98,33 €
Each
Unité
Block Through Beam (Emitter) 15 m PNP Cable - - - 24V - - LED IP67 500 mA
N° de stock RS 157-7062
Référence fabricantE3JMR4M4TG
MarqueOmron
129,20 €
Each
Unité
Block Retroreflective 4 m Relay 5-Terminal Screw - 250V - 5V - - LED IP66 3 A
N° de stock RS 739-6664
Référence fabricantOJ5052
174,23 €
Each
Unité
Block Diffuse 15 → 200 mm PNP 4-Pin M8 Connector - - - 30V - - LED IP67 200 mA
N° de stock RS 729-5205
MarqueRS PRO
67,50 €
Each
Unité
Block Retroreflective 7.2 m PNP 3-Wire Cable 2m - - - 24V - - LED IP67 100 mA
N° de stock RS 124-4435
Référence fabricantE3ZT86IL3OMS
MarqueOmron
124,10 €
Each
Unité
Block Through Beam (Emitter and Receiver) 15 m PNP 4-Pin M8 Connector - - IO-LINK 30V - Pre-Wired Infrared IP67 100 mA