Optical Sensors - Photoelectric, Industrial

Image Part Number Description / PDF Quantity Rfq
WTB4-3P3212S61

WTB4-3P3212S61

SICK

SENSOR PROXIMITY 100MM PNP

0

ZL2-E2438

ZL2-E2438

SICK

SENSOR RETROREFLCTV 3M NPN DO/LO

0

GSE6-P4112

GSE6-P4112

SICK

SENSOR THRU-BEAM 10MM NPN DO/LO

0

WL4S-3N2432V

WL4S-3N2432V

SICK

SENSOR RETROREFLECTIVE 5M NPN

0

GSE6-N6312

GSE6-N6312

SICK

SENSOR THROUGH-BEAM 15M NPN

0

GRTE18S-N231Z

GRTE18S-N231Z

SICK

SENSOR PROXIMITY 115MM NPN

0

WL9L-3N1132

WL9L-3N1132

SICK

SENSOR RETROREFLECTIVE 12M NPN

0

KTM-MB8A191P

KTM-MB8A191P

SICK

SENSOR 12.5MM NPN/PNP

0

HSE18-M5B2AA

HSE18-M5B2AA

SICK

SENSOR THROUGH-BEAM 20M DO

0

GRL18S-P2336

GRL18S-P2336

SICK

SENSOR RETROREFL 10MM NPN DO/LO

0

GSE10-R3711

GSE10-R3711

SICK

SENSOR THROUGH-BEAM 40M RELAY

0

WTB2S-2N1360

WTB2S-2N1360

SICK

SENSOR PROXIMITY 66MM NPN

0

WSE4T-3E1430

WSE4T-3E1430

SICK

SENSOR THROUGH-BEAM 2.5M NPN

0

WLG4-3P1332

WLG4-3P1332

SICK

SENSOR RETROREFLECTIVE 4.5M PNP

0

WTT12L-B3561

WTT12L-B3561

SICK

SENSOR PROXIMITY 3.8M NPN/PNP

0

HSE18-P3B1BA

HSE18-P3B1BA

SICK

SENSOR THROUGH-BEAM 20M PNP

0

ZT1-P2231

ZT1-P2231

SICK

SENSOR PROXIMITY 60MM PNP

0

WL9G-3P1132

WL9G-3P1132

SICK

SENSOR RETROREFLECTIVE 3M PNP

0

ET4-N5215

ET4-N5215

SICK

SENSOR PROXIMITY 155MM PNP

0

GRTE18S-P1317

GRTE18S-P1317

SICK

SENSOR PROXIMITY 115MM PNP

0

Optical Sensors - Photoelectric, Industrial

1. Overview

Industrial photoelectric sensors are optoelectronic devices that detect the presence or absence of objects by emitting and receiving light beams. These sensors convert optical signals into electrical signals through photodetection mechanisms, enabling non-contact measurement and control in industrial environments. Their importance lies in enabling automation, improving production efficiency, and ensuring process reliability across various sectors including manufacturing, logistics, and quality control.

2. Main Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Through-Beam SensorsSeparate emitter and receiver units for high detection accuracyConveyor belt object counting
Reflective SensorsSingle unit with reflector for compact installationsPackaging integrity verification
Diffuse SensorsObject-reflective detection without separate reflectorColor contrast detection in sorting systems
Fiber Optic SensorsFlexible light transmission for confined spacesSemiconductor manufacturing equipment
Slot SensorsU-shaped design for precise positional detectionPrinted circuit board alignment systems

3. Structure and Components

Typical construction includes: 1) Light source (LED/Laser diode) emitting specific wavelengths (660nm-950nm) 2) Photodetector (photodiode/CCD array) for signal reception 3) Signal processing circuitry with amplification and threshold detection 4) Protective housing with optical window (IP65-IP69K ratings) 5) Electrical interface (2-wire/3-wire configurations) Advanced models integrate temperature compensation and digital communication protocols (IO-Link).

4. Key Technical Specifications

ParameterSignificance
Detection RangeDetermines maximum operational distance (20mm-50m)
Response TimeMeasures detection speed (10 s-2ms)
AccuracyDefines position detection precision ( 0.02mm)
Environmental ResistanceSpecifies operating conditions (-40 C to +70 C, dust/water protection)
Output TypeIdentifies electrical interface (NPN/PNP, analog/digital)

5. Application Fields

Key industries include: - Automotive Manufacturing: Robotic welding verification - Logistics: Parcel dimension measurement systems - Food Processing: Fill-level detection in transparent containers - Electronics Assembly: Component presence verification - Medical Devices: Lab automation sample tracking Example: In automotive production lines, photoelectric sensors detect door panel alignment with 0.1mm precision at 2m/s conveyor speeds.

6. Leading Manufacturers and Products

ManufacturerCountryRepresentative Product
SiemensGermanyOBT1-16GM300-S91L
OmronJapanE3Z-T61
KeyenceJapanLKG50A-W15T
Pepperl+FuchsGermanyR2000-6
BalluffUSABOS 18M

7. Selection Recommendations

Key considerations: 1. Detection requirements: Distance, object size, and speed 2. Environmental factors: Ambient light, temperature, and contamination 3. Installation constraints: Space limitations and mounting options 4. Output requirements: Digital/analog signal compatibility 5. Cost-benefit analysis: Balancing precision with operational budgets Example: Choose fiber optic sensors for high-temperature furnace applications exceeding 100 C.

8. Industry Trend Analysis

Current development trends include: - Miniaturization through MEMS technology (sensor size reduction by 40% since 2015) - Integration of AI algorithms for adaptive threshold adjustment - Wireless communication capabilities (Bluetooth/Wi-Fi 6 adoption) - Increased sensitivity in visible light spectrum (enhanced color detection) - Growth in safety-rated sensors (SIL2/PLc compliance) Market projections indicate 8.2% CAGR through 2027 driven by Industry 4.0 adoption.

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