Photoelectric Sensors | Optical Sensor | RS Components
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    Photoelectric Sensors

    What are Photoelectric Sensors?

    Photoelectric sensors determine the distance, absence, or presence of physical objects by emitting a field or beam of electromagnetic radiation. An object is detected by measuring alterations in the return signal, this is achieved as sensors have an Emitter for emitting light and a Receiver for receiving light. There are 3 main types of photoelectric sensors, through-beam, retro-reflective and diffuse, which vary slightly in the way they function.

    The basic function of each is to detect the presence or absence of objects or measure the distance to the object. You can learn more in our complete guide to photoelectric sensors.

    Types of Photoelectric Sensors:

    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.

    Applications of Photoelectric Sensors

    Photoelectric Sensors can be used in various settings, some of which include:

    • Food Industry
    • Pharmaceutical Industry
    • Packaging Plants
    • Automotive Industry
    • Doors & Gates

    Browse the broad range of Photoelectric Sensors RS Components have to offer and order today for next day delivery.

    6903 표시되는 제품 Photoelectric Sensors

    • RS 제품 번호 266-9908
    • 제조사 부품 번호 WT100-2P4419
    개당
    ₩188,864.80
    SICK
    Rectangular
    Proximity
    140 mm
    PNP
    Male Connector
    Light / Dark switching
    -
    -
    30V
    M8 4 Pin Connector
    LED
    IP67
    30 mA
    -
    0.5 ms
    -
    ABS, Plastic
    +55°C
    -25°C
    Threaded
    WT100
    • RS 제품 번호 205-5126
    • 제조사 부품 번호 VL12-2P430
    개당
    ₩306,816.00
    SICK
    Barrel
    Retroreflective
    3 m
    PNP
    M12 Connector
    -
    -
    -
    30V
    4 Pin Connector
    LED
    IP67
    -
    -
    <1.25 ms
    -
    Metal
    +70°C
    -25°C
    -
    V12-2
    • RS 제품 번호 266-9287
    • 제조사 부품 번호 WL12L-2B520
    개당
    ₩1,289,322.80
    SICK
    Rectangular
    Retroreflective
    15 m
    NPN, PNP
    Male Connector
    Light / Dark switching
    -
    -
    30V
    M12 5 Pin Connector
    Laser Light
    IP67, IP69K
    100 mA
    -
    100 μs
    -
    Metal
    +50°C
    -10°C
    Threaded
    WL12L
    • RS 제품 번호 266-7998
    • 제조사 부품 번호 GSE2S-N2311
    개당
    ₩286,763.92
    SICK
    Rectangular
    Through Beam
    0 → 2 m
    NPN
    Cable
    Light / Dark switching
    -
    -
    30V
    Cable 2 Meter
    LED
    IP67
    20 mA
    -
    0.6 ms
    -
    ABS, Plastic
    +50°C
    -25°C
    -
    GSE
    • RS 제품 번호 262-8910
    • 제조사 부품 번호 E3Z-T81 2M
    개당
    ₩258,454.88
    Omron
    Block
    Through Beam
    15000 mm
    PNP
    Cable
    Light / Dark switching
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 125-4559
    • 제조사 부품 번호 PM-K65
    개당
    ₩28,989.60
    Panasonic
    Fork
    Through Beam
    6 mm
    NPN
    4 Pin Connector
    -
    -
    -
    24V
    4 Pin Connector
    Infrared
    IP40
    50 mA
    -
    20 μs, 80 μs
    -
    PBT (Enclosure), Polycarbonate (Display Section)
    +55°C
    -25°C
    Chassis Mount
    PM-65
    • RS 제품 번호 212-3118
    • 제조사 부품 번호 GRTE18-P2412V
    개당
    ₩282,000.00
    SICK
    Barrel
    Energetic
    3 mm → 115 mm
    Light/Dark Switching, PNP
    M12 Connector
    -
    -
    -
    30V
    4 Pin Connector
    -
    IP67, IP68, IP69K
    100 mA
    -
    0.001 seconds
    -
    Stainless Steel
    +55°C
    -25°C
    -
    GR18 Inox
    • RS 제품 번호 218-951
    • 제조사 부품 번호 WL100L-F1131
    개당
    ₩524,896.00
    SICK
    Block
    Retroreflective
    0.08 → 12 m
    PNP
    Cable
    -
    -
    -
    30V
    -
    Laser Light
    IP65
    100 mA
    -
    <0.25 ms
    -
    ABS, PMMA
    +50°C
    -10°C
    Panel Mount
    W100 Laser
    • RS 제품 번호 215-5462
    • 제조사 부품 번호 E3Z-T81 5M
    개당
    ₩246,392.80
    Omron
    Block
    Through Beam
    15 m
    PNP
    3 Wire Cable 5 m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 542-5094
    • 제조사 부품 번호 FHDK 07P6901/KS35A
    개당
    ₩271,462.60
    Baumer
    Block
    Diffuse
    10 → 60 mm
    PNP
    4-Pin M8 Connector
    -
    -
    -
    30V
    -
    LED
    IP65
    100 mA
    -
    <0.5 ms
    -
    Polyamide
    +50°C
    -20°C
    -
    FHDK 07P
    개당
    ₩421,872.00
    SICK
    Block
    Background Suppression
    4 mm → 180 mm
    PNP
    M8 Connector
    -
    -
    -
    30V
    4 Pin Connector
    Red Light
    IP66, IP67
    100 mA
    -
    0.0005 seconds
    -
    Plastic
    +60°C
    -40 °C
    -
    W4S-3
    개당
    ₩327,120.00
    SICK
    Block
    Background Suppression
    2 mm → 100 mm
    NPN
    Cable
    -
    -
    -
    30V
    4 Wire
    Red Light
    IP67
    100 mA
    -
    0.0005 seconds
    -
    Plastic
    +55°C
    -25°C
    -
    W150
    • RS 제품 번호 204-3883
    • 제조사 부품 번호 WL12GC-3P2472A00
    개당
    ₩484,457.20
    SICK
    Block
    Retroreflective
    4 m
    PNP
    M12 Connector
    -
    -
    -
    30V
    4 Pin Connector
    PinPoint LED
    IP66, IP67
    -
    -
    20 ms
    -
    Metal
    +60°C
    -40 °C
    -
    W12G
    개당
    ₩277,300.00
    SICK
    Block
    Background Suppression
    2 mm → 120 mm
    NPN
    Cable
    -
    -
    -
    30V
    3 Wire
    Red Light
    IP67
    50 mA
    -
    0.0006 seconds
    -
    Plastic
    +50°C
    -25°C
    -
    G2S
    • RS 제품 번호 205-5171
    • 제조사 부품 번호 RAY26P-34162530A00
    개당
    ₩882,096.00
    SICK
    Block
    Retroreflective
    3 m
    NPN, PNP, PUSH/PULL
    Cable with connector
    -
    -
    -
    30V
    4 Pin Connector
    LED
    IP67
    -
    IO-Link
    3 ms
    -
    Plastic
    +60°C
    -40°C
    -
    Reflex Array
    • RS 제품 번호 361-5510
    • 제조사 부품 번호 EX-13A-PN
    개당
    ₩155,400.80
    Panasonic
    Block
    Through Beam (Emitter and Receiver)
    500 mm
    PNP
    3-Wire Cable 2m
    -
    -
    -
    24V
    -
    LED
    IP67
    50 mA
    -
    <=0.5 ms
    -
    PET
    +55°C
    -25°C
    -
    EX10
    • RS 제품 번호 266-9274
    • 제조사 부품 번호 WL12G-3O2431S47
    개당
    ₩556,066.40
    SICK
    Rectangular
    Retroreflective
    4 m
    PNP
    Male Connector
    Dark Switching
    -
    -
    30V
    M12 4 Pin Connector
    LED
    IP66, IP67
    100 mA
    -
    333 μs
    -
    Metal
    +60°C
    -45°C
    Threaded
    WL12
    • RS 제품 번호 714-1653
    • 제조사 부품 번호 ML100-8-H-350-RT/95/102
    개당
    ₩201,084.80
    Pepperl + Fuchs
    Block
    Diffuse
    5 → 350 mm
    NPN
    4-Pin M8 Connector
    -
    -
    -
    30V
    -
    LED
    IP67
    100 mA
    -
    1 ms
    -
    PC
    +60°C
    -30°C
    -
    -
    • RS 제품 번호 215-7218
    • 제조사 부품 번호 E3Z-D82-IL3 2M
    개당
    ₩230,206.00
    Omron
    Block
    Diffuse
    1 m
    PNP
    Cable 2 m
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    E3Z
    • RS 제품 번호 212-2913
    • 제조사 부품 번호 GSE6-P6111
    개당
    ₩225,600.00
    SICK
    Block
    Through Beam
    0 → 15 m
    Light/Dark Switching, PNP
    M8 Connector
    -
    -
    -
    30V
    4 Pin Connector
    Polarized Red Light
    IP67
    100 mA
    -
    0.0005 seconds
    -
    Plastic
    +55°C
    -25°C
    -
    G6
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