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. 418-5284
FabrikantnummerBGL 80 A-001-S49
FabrikantBALLUFF
€ 163,86
Each
Aantal stuks
Fork Through Beam (Fork) 80 mm PNP 3-Pin M8 Connector - 30V - - LED IP67 200 mA - -
RS-stocknr. 902-7026
FabrikantnummerBOS 5K-PS-RR10-S49
FabrikantBALLUFF
€ 93,68
Each
Aantal stuks
Block Retroreflective 0.1 4 m PNP 3-Pin M8 Connector - 30V - Connector LED IP67 100 mA - 1 ms
RS-stocknr. 418-5228
FabrikantnummerBGL 5 A-001-S49
FabrikantBALLUFF
€ 108,21
Each
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Fork Through Beam (Fork) 5 mm PNP - - 30V - - LED IP65 200 mA - -
RS-stocknr. 902-7155
FabrikantnummerBOS 18M-X-RS23-S4
FabrikantBALLUFF
€ 63,82
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Barrel Through Beam (Emitter) 20 m - M12 Connector - 30V - Connector LED IP67 - - -
RS-stocknr. 902-6988
FabrikantnummerBOS R020K-PS-RF11-02
FabrikantBALLUFF
€ 111,80
Each
Aantal stuks
Block Diffuse 1 30 mm PNP Cable - - - Cable LED IP67 - - -
RS-stocknr. 418-5234
FabrikantnummerBGL 10 A-001-S49
FabrikantBALLUFF
€ 114,77
Each
Aantal stuks
Fork Through Beam (Fork) 10 mm PNP - - 30V - - LED IP67 200 mA - -
RS-stocknr. 902-7158
FabrikantnummerBOS 18M-PS-RE23-S4
FabrikantBALLUFF
€ 73,99
Each
Aantal stuks
Barrel Through Beam (Receiver) 20 m PNP M12 Connector - 30V - Connector LED IP67 - - -
RS-stocknr. 902-7133
FabrikantnummerBOS 12M-X-RS10-S4
FabrikantBALLUFF
€ 59,74
Each
Aantal stuks
Barrel Through Beam (Emitter) 0 8 m - M12 Connector - 30V - Connector LED IP67 15 (No-Load) mA - -
RS-stocknr. 902-6969
FabrikantnummerBOS Q08M-X-LS20-S49
FabrikantBALLUFF
€ 107,93
Each
Aantal stuks
Barrel Through Beam (Emitter) 0 3 m - 3-Pin M8 Connector - 30V - Connector LED IP67 100 mA - 1.25 ms
RS-stocknr. 902-7161
FabrikantnummerBOS 18M-PS-IE23-S4
FabrikantBALLUFF
€ 80,77
Each
Aantal stuks
Barrel Through Beam (Receiver) 50 m PNP M12 Connector - 30V - Connector LED IP67 100 mA - 1.25 ms
RS-stocknr. 905-5062
FabrikantnummerBGL0019
FabrikantBALLUFF
€ 353,36
Each
Aantal stuks
Fork Through Beam (Fork) - PNP 3-Pin M8 Connector - 30V - M8 Laser Light IP67 - - -
RS-stocknr. 902-7180
FabrikantnummerBOS 23K-PA-RH10-S4
FabrikantBALLUFF
€ 171,96
Each
Aantal stuks
Block Background Suppression 3 800 mm PNP M12 Connector - 30V - Connector LED IP6X, IPX9K 100 mA - 0.83 ms
RS-stocknr. 814-1083
FabrikantnummerBOS 5K-PS-RH12-S75
FabrikantBALLUFF
€ 86,80
Each
Aantal stuks
Block Diffuse 40 200 mm PNP 4-Pin M8 Connector - 30V - Cable LED IP67 100 mA - -
RS-stocknr. 814-1165
FabrikantnummerBOS 18M-PA-RH22-S4
FabrikantBALLUFF
€ 116,87
Each
Aantal stuks
Barrel Diffuse 30 300 mm PNP M12 x 1-S04 - 30V - Wire Lead LED IP67 100 mA - -
RS-stocknr. 902-7199
FabrikantnummerBOS 23K-PA-LH10-S4
FabrikantBALLUFF
€ 215,86
Each
Aantal stuks
Block Background Suppression 5 800 mm PNP M12 Connector - 30V - Connector LED IP6X, IPX9K 100 mA - 0.5 ms
RS-stocknr. 814-1092
FabrikantnummerBOS 5K-PS-RR10-S75
FabrikantBALLUFF
€ 75,55
Each
Aantal stuks
Block Retroreflective 0 4 mm PNP 4-Pin M8 Connector - 30V - Cable LED IP67 100 mA - -
RS-stocknr. 814-1089
FabrikantnummerBOS 5K-PS-IX10-S75
FabrikantBALLUFF
€ 91,80
Each
Aantal stuks
Block Through Beam (Emitter and Receiver) 0 10 m PNP 4-Pin M8 Connector - 30V - Cable Infrared IP67 100 mA - -
RS-stocknr. 902-7057
FabrikantnummerBOS 5K-PU-LX10-S75
FabrikantBALLUFF
€ 146,63
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Block Through Beam (Emitter and Receiver) 0 30 m PNP 4-Pin M8 Connector - 30V - Connector LED - - - -
RS-stocknr. 902-6994
FabrikantnummerBOS R020K-PS-PR11-00,2-S49
FabrikantBALLUFF
€ 100,49
Each
Aantal stuks
Block Retroreflective 25 3000 mm PNP M8 Connector - - - Connector LED IP67 - - -
RS-stocknr. 902-7067
FabrikantnummerBOS 6K-PU-LK10-S75
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€ 224,01
Each
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Block Retroreflective Maximum of 5 m PNP 4-Pin M8 Connector - 30V - Connector LED IP67, IP69K 100 mA - 0.5 ms