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.


...
顯示內容 隱藏內容

篩選條件

正在檢視 2781 - 2800,共 3107 項產品
Results per page
Description Price Sensor Style Detection Type Detection Range Output Type Electrical Connection Switching Mode Maximum AC Voltage Communication Protocol Maximum DC Voltage Terminal Type Light Source IP Rating Maximum Current Interface
RS庫存編號 763-7882
製造零件編號WTB12-3P2431
BrandSick
HK$2,514.66
單位
Block Background Suppression 20 → 350 mm PNP 4-Pin M12 Connector - - - 30V - LED IP66, IP67, IP69K 100 mA -
RS庫存編號 877-7389
製造零件編號HG-C1030-P
BrandPanasonic
HK$5,164.28
單位
Block Background Suppression 30 mm PNP 5-Wire Cable 2m - - - 24V - Laser Light IP67 - -
RS庫存編號 125-4558
製造零件編號PM-R45-P-C3
BrandPanasonic
HK$245.24
單位
Fork Through Beam (Fork) 6 mm PNP 3m Cable - - - 24V Cable Infrared IP64 50 mA -
RS庫存編號 179-5310
製造零件編號SA1E-LTP3-2M
BrandIdec
HK$1,247.22
單位
Block Through Beam 30 m PNP Cable - - - 30V - - IP67 15 mA -
RS庫存編號 135-0291
製造零件編號BOS 23K-GI-RD10-S4
BrandBALLUFF
HK$972.96
單位
Block Diffuse 0 → 2 m NPN/PNP 4-Pin M12 Connector - - IO-LINK 30V 4-Pin Connector LED IP6X, IPX6K 100 mA IO-Link
全新
RS庫存編號 212-3209
製造零件編號VTE180-2P41187
BrandSick
HK$791.99
單位
Cylindrical Energetic 1 → 1100 mm Light/ Dark Switching, PNP Cable - - - 30V 4-Wire - IP67 100 mA -
RS庫存編號 814-0373
製造零件編號OGS500
HK$888.04
單位
Barrel Through Beam (Emitter) 25 m - M12 Connector - - - 30V Wire Lead LED IP67 20 mA -
RS庫存編號 488-148
製造零件編號O5E200
HK$989.80
單位
Block Through Beam (Receiver) 20 m PNP M12 Connector - - - 36V - LED IP67 200 mA -
RS庫存編號 188-5209
製造零件編號PA18CAD10PAM1SA
HK$651.58
單位
Miniature Diffuse-Reflective 1 m PNP NO/NC M12 x 4 Pin Connector - - - 30V M12 LED IP67, IP69K 25 mA -
RS庫存編號 752-5231
製造零件編號XUB1BPANL2
HK$708.91
單位
Barrel Retroreflective 4 m PNP Cable - - - 24V - Infrared IP65, IP67 100 mA -
全新
RS庫存編號 204-3999
BrandRS PRO
HK$288.61
單位
Barrel Through Beam (Emitter) 20 m PNP NO/NC 2m PVC Cable - - - 30V 2 m cable LED IP67 - -
RS庫存編號 188-5214
製造零件編號PA18CLR30TOM6
HK$1,231.64
單位
Barrel Retro-Reflective 3 m 2-Wire NO/NC Thyristor (SCR) M12 x 1 Connector - 250V - - M12 - IP67 10 mA -
RS庫存編號 842-3101
製造零件編號Q25SP6LPQ
BrandBanner
HK$1,286.53
單位
Block Retroreflective 2 m PNP 4-Pin M12 Connector - - - 30V - LED IP69K 30 mA -
RS庫存編號 136-5661
製造零件編號EX-Z11A-P
BrandPanasonic
HK$904.22
單位
Block Through Beam (Emitter and Receiver) 50 mm PNP Cable - - - 24V Wire Lead LED IP67 20 mA -
RS庫存編號 176-9798
製造零件編號Q12RB6LPQ
BrandBanner
HK$1,324.02
單位
Block Through Beam 10 m Bipolar M8 Connector - - - 30V Connector LED IP67 - -
RS庫存編號 263-8269
製造零件編號WT260-R260
BrandSick
HK$2,640.41
單位
Block Diffuse 380 mm Relay 4-Terminal Screw - 240V - 30V - Infrared IP66 3 A ac, 330 A dc -
全新
RS庫存編號 212-3211
製造零件編號VTE180-2P42449
BrandSick
HK$846.99
單位
Cylindrical Energetic 1 → 450 mm Light/ Dark Switching, PNP Male Connector M12 - - - 30V 4-Pin - IP67 100 mA -
全新
RS庫存編號 212-2904
製造零件編號GSE6-P1111
BrandSick
HK$918.50
單位
Block Through-Beam 0 → 15000 mm Light/Dark switching, PNP Cable - - - 30V 3-Pin Polarized Red Light IP67 100 mA -
RS庫存編號 842-8582
製造零件編號WL2S-2F1330
BrandSick
HK$1,155.38
單位
Block Retroreflective 0 → 1.2 m PNP Cable - - - 30V - LED IP67 20 mA -
RS庫存編號 124-0325
製造零件編號OMT100-R100-2EP-IO-V31
HK$2,895.78
單位
Block Background Suppression 40 → 100 mm NPN/PNP 4-Pin M8 Connector - - IO-LINK 30V 4-Pin Connector LED IP67, IP69, IP69K 100 mA IO-Link