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.


...
Lees meer Lees minder

Filters

1 - 20 van 21 producten worden weergegeven
Resultaten per pagina
Omschrijving Prijs 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
RS-stocknr. 203-1411
FabrikantnummerSOOD-BS-L-PN-30
FabrikantFesto
132,00 €
Each
Aantal stuks
Block Diffuse 30 mm NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1412
FabrikantnummerSOOE-RG-R-PNLK-T
FabrikantFesto
96,00 €
Each
Aantal stuks
Block Retroreflective 3.5 m NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1359
FabrikantnummerSOOE-TB-L-PNLK-T
FabrikantFesto
129,60 €
Each
Aantal stuks
Block Through-Beam 20 m NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1312
FabrikantnummerSOOD-BS-R-PN-30
FabrikantFesto
106,80 €
Each
Aantal stuks
Block Diffuse 30 mm NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1354
FabrikantnummerSOOD-TB-L-PN
FabrikantFesto
174,00 €
Each
Aantal stuks
Block Light Beam 10 m NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1313
FabrikantnummerSOOE-MS-R-PNLK-T
FabrikantFesto
338,40 €
Each
Aantal stuks
Block Distance Sensor 100 mm NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1414
FabrikantnummerSOOD-BS-L-PN-80
FabrikantFesto
132,00 €
Each
Aantal stuks
Block Diffuse 80 mm NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1397
FabrikantnummerSOOD-TB-R-PN
FabrikantFesto
121,20 €
Each
Aantal stuks
Block Light Beam 2 m NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1434
FabrikantnummerSOOD-BS-R-PN-50
FabrikantFesto
106,80 €
Each
Aantal stuks
Block Diffuse 50 mm NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1357
FabrikantnummerSOOD-BS-L-PN-50
FabrikantFesto
132,00 €
Each
Aantal stuks
Block Diffuse 50 mm NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1435
FabrikantnummerSOOD-RS-R-PN
FabrikantFesto
91,20 €
Each
Aantal stuks
Block Retroreflective 1 m NPN, PNP Cable With Plug - - - - - - - - -
RS-stocknr. 203-1417
FabrikantnummerSOOE-TB-R-PNLK-T
FabrikantFesto
90,00 €
Each
Aantal stuks
Block Through-Beam 12 m NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1352
FabrikantnummerSOOE-BS-L-PNLK-T
FabrikantFesto
145,20 €
Each
Aantal stuks
Block Diffuse 300 mm NPN, PNP - - - - - - - - - -
RS-stocknr. 203-1358
FabrikantnummerSOOE-KS-L-PNLK-T
FabrikantFesto
129,60 €
Each
Aantal stuks
Block Contrast Sensor 120 mm NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1372
FabrikantnummerSOOE-RS-L-PNLK-T
FabrikantFesto
121,20 €
Each
Aantal stuks
Block Retroreflective 12 m NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1461
FabrikantnummerSOOE-RS-R-PNLK-T
FabrikantFesto
67,20 €
Each
Aantal stuks
Block Retroreflective 6.5 m NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1415
FabrikantnummerSOOE-MS-L-PNLK-T
FabrikantFesto
384,00 €
Each
Aantal stuks
Block Distance Sensor 100 mm NPN, PNP Plug - - - - - - - - -
RS-stocknr. 203-1460
FabrikantnummerSOOE-BS-R-PNLK-T
FabrikantFesto
90,00 €
Each
Aantal stuks
Block Diffuse Sensor With Background Suppression 350 mm NPN, PNP - - - - - - - - - -
RS-stocknr. 203-1371
FabrikantnummerSOOE-DS-R-PNLK-T
FabrikantFesto
69,60 €
Each
Aantal stuks
Block Diffuse Sensor 1 m NPN, PNP - - - - - - - - - -
RS-stocknr. 203-1394
FabrikantnummerSOOD-RS-L-PN
FabrikantFesto
118,80 €
Each
Aantal stuks
Block Retroreflective 2 m NPN, PNP Cable With Plug - - - - - - - - -