FIBER OPTICS SENSORS

Fiber optic proximity sensors come in several types for diverse applications:

• Through-beam: Detect objects over long distances using separate emitter and receiver.

• Diffuse reflective: Detect objects by reflected light from the same unit, suitable for various materials.

• Retroreflective: Use a reflector to bounce light back; detect object interruption in medium ranges.

• Specialized designs for high-temperature, explosion-proof, and harsh environments.

• Various sensor head shapes and fiber cable types enable installation in tight or complex spaces.

These models offer precision, durability, and reliable detection for industrial automation, robotics, packaging, and hazardous area monitoring.

Window fiber optic sensors are compact, high-precision sensors that use fiber optic cables to detect small objects or changes in presence through a protective window. They operate by emitting light through a fiber and detecting the reflection or interruption of that light caused by the target object within a fixed short detection distance. These sensors offer exceptional accuracy, immunity to electromagnetic interference, and rugged IP67-rated industrial protection, making them ideal for demanding automation and machine vision tasks such as part counting, material handling, and transparent object detection.

The high-temperature resistant glass optical fiber product series is engineered for demanding environments like smart manufacturing, packaging, and plastics machinery, offering reliable optical sensing even under extreme thermal and chemical 

This series features glass optical fibers that withstand temperatures from -40℃ up to 350℃, making them ideal for high-heat industrial applications where standard fibers may fail.

Key highlights

• Equipped with robust metal protective tubes to minimize fiber breakage and extend operational life in harsh environments.

• Customizable versions are available, including models resistant to strong acids and alkalis for added durability in chemical processing.

• High safety: The fibers transmit light only (no electrical current), preventing explosion or short-circuit risks, and ensuring operation in hazardous areas.

• Superior resistance to chemical corrosion, rapid temperature changes, and long service life, providing stable performance in tough process conditions and compatible for EX zone.

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Diffuse fiber optic sensors operate on the principle of detecting light reflected diffusely from the surface of an object. The sensor emits light through an optical fiber that spreads over the target. The reflected light, scattered in multiple directions due to the target’s surface properties, is collected by a receiving fiber and measured.

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Applications

• Object presence detection in parts feeding and assembly lines.

• Positioning of small or irregularly shaped parts.

• Monitoring packaging processes.

• Detecting black marks or printed codes on labels and products.

• Distinguishing between objects and backgrounds.

• Suitable for environments where space limits installation of through-beam sensors.

• Industrial automation for quality control, counting, and sorting.

Long distance industrial proximity fiber optic sensors use fiber optics to transmit and receive light signals for non-contact object detection at extended ranges, often beyond centimeters up to several meters. These sensors are specially designed for harsh industrial environments where conventional sensors may fail due to electromagnetic interference, dust, moisture, or extreme temperatures.

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Description

• Consist of a fiber optic sensor head connected to a remote amplifier.

• Use high-power light sources and sensitive receivers to detect objects over long distances.

• Often utilize focused or narrow beams to enable stable detection without background interference.

• Provide immunity to electrical noise and chemical corrosion, suitable for environments with challenging conditions.

• Can detect various materials including metal, glass, plastic, liquids, and semi-transparent objects.

• Include adjustable sensitivity and reliable switching outputs compatible with industrial controllers.​

Needle-aligned fiber refers to optical fibers precisely aligned within or along the length of a needle-shaped structure for sensing or imaging applications. This alignment enables real-time, high-resolution measurement or imaging in confined or minimally invasive environments, such as medical procedures.

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Applications

• Real-time shape sensing and navigation of needles in medical procedures.

• Minimally invasive surgeries, including biopsies and catheter placements.

• Robotic surgery where needle insertion paths require precise monitoring.

• Industrial applications requiring insertion of sensors into narrow or inaccessible spaces to monitor position or deformation.

Needle-aligned fiber optics enable advanced sensing capabilities by integrating fiber sensors directly into needle-like probes, greatly enhancing accuracy and control in critical medical and industrial tasks.

Matrix fiber optic proximity sensors are advanced fiber optic sensor systems designed to detect object presence, position, or movement across multiple points arranged in a matrix or grid pattern for high-resolution spatial sensing.​

Applications

• Multi-point presence and position detection on conveyor belts and automated assembly lines.

• Surface or object profiling for material sorting and quality control.

• Detecting the shape, size, and orientation of small parts in manufacturing.

• Robotics and automation requiring precise spatial sensing for gripping or handling.

• Packaging and pharmaceutical industries for batch verification and labeling accuracy.

• Security and safety monitoring through area detection and intrusion sensing.

• Inspection systems for electronic components and fine mechanical parts.​

Multi-head fiber optic proximity sensors consist of multiple fiber optic detector heads integrated into a single unit, allowing simultaneous detection at multiple points or locations. This design offers flexible layout and high integration, enabling independent adjustment of each detection head's position and angle while maintaining compact system architecture.

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Applications

• Automated production lines in electronics and automotive industries for multi-point size, shape, and position detection.

• Assembly verification where multiple features or components must be checked simultaneously.

• Packaging machinery requiring multi-location presence or position sensing.

• Quality control systems needing comprehensive monitoring of complex parts.

• Robotics and automation setups requiring spatial distribution of sensors without clutter.

• Situations demanding reduced wiring and simplified sensor management with high detection flexibility.​

Side-view fiber optic proximity sensors feature fiber optic heads designed to detect objects from the side rather than the front. They are specifically built for narrow or restricted installation spaces where conventional front-facing sensors cannot be mounted.

Description

• The sensor head emits and receives light at a side angle, enabling side detection.

• Designed with compact, slim fiber tubes suitable for tight spaces.

• New patented designs offer enhanced performance including high-speed response, high accuracy, energy efficiency, and resistance to high temperatures.

• Multiple models and types available to suit different application requirements.

• Provides reliable detection in confined spaces often found in manufacturing automation lines.

Applications

• Ideal for detecting objects or parts located on conveyors or machines with limited space.

• Used in smart manufacturing, packaging machinery, and plastics machinery where side access is necessary.

• Suitable for high-speed automated production lines requiring precise and consistent side detection.

• Environments with temperature extremes or energy-saving needs benefit from their robust design.

This fiber optic proximity sensor features a high-speed digital amplifier with a four-bit dual digital display for easy, precise signal monitoring. It supports automatic teaching for quick setup, adjustable delay modes, and normally closed output configuration. Designed with strong anti-interference capabilities, it ensures stable operation in harsh industrial environments. The compact fiber sensor heads detect a wide range of materials by light reflection, allowing installation in narrow or cramped spaces and providing reliable, non-contact presence detection where electrical noise or explosive conditions are concerns. Its user-friendly digital display and operation make it suitable for automation, robotics, packaging, and other high-speed industrial applications.​

Bracket fiber optic sensors are small sensing heads held in a bracket that directs light to a target and back through optical fibers to a remote amplifier. They are designed for space-constrained environments and harsh industrial conditions. These sensors provide reliable, non-contact detection of objects by measuring the light reflected or interrupted from the target. Typical uses include detecting small parts on conveyors, presence monitoring, and high-temperature or high-electrical-noise environments where conventional sensors might fail. The bracket design allows easy, stable mounting and precise alignment, while the remote amplifier ensures fast and accurate sensing performance. These sensors are widely applied in factory automation, packaging, robotics, and harsh process industries requiring robust and precise optical detection.

Fork fiber optic sensors consist of a fork-shaped housing containing an optical emitter and receiver aligned opposite each other to detect objects passing through the fork gap. They operate on through-beam photoelectric technology, providing fast, precise, and non-contact detection.

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Description

• Fork sensors offer high accuracy, quick response time, and excellent repeatability.

• They are resistant to ambient light, electrical noise, and temperature fluctuations.

• Sensitivity is adjustable via a potentiometer or teach-in function.

• Typically housed in rugged stainless steel for durability.

• Capable of detecting transparent, shiny, or smallest optical aberrations.

• Compatible for EX proof areas

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Coaxial fiber optic sensors are designed with a coaxial structure where the emitter fiber is positioned centrally and surrounded by the receiver fiber or receiver fibers concentrically. This design allows the sensor to emit light through the core while simultaneously collecting reflected light around the same axis, enabling accurate detection even when the target approaches from different angles.

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Applications

• Precise measurement of small parts or features with complex geometries.

• Detection of object presence or absence in automated assembly lines.

• High-accuracy position control where the target surface may have varying angles.

• Inspection and quality control in electronics manufacturing.

• Automation in packaging and labeling where stable sensing relative to target positioning is critical.

• Use in environments with vibration or where mechanical alignment may shift; the coaxial design ensures consistent sensing.

Fiber optic focusing lenses are precision optical components designed to manipulate and focus light beams emitted or received by fiber optic cables. They optimize the light pathway to achieve a focused spot or collimated beam with minimal distortion and maximum transmission efficiency.

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Description

• These lenses reduce beam divergence from fiber optic light guides, enabling concentrated, high-intensity light output.

• They come in various shapes like spherical, aspheric, or meniscus lenses, each optimized to reduce aberrations and improve image quality.

• Used with fiber optic sensors and laser systems to enhance detection accuracy and signal strength.

• Manufactured from high-quality optical materials such as fused silica or optical glass to withstand harsh environments and high power densities.

• Some lenses feature coatings like anti-reflective or high-damage-threshold layers for improved durability and performance.

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Through-beam fiber optic sensors consist of an emitter fiber and a receiver fiber positioned facing each other. The emitter sends a light beam through the optical fiber to the receiver, which continuously monitors the light intensity. When an object passes between the emitter and receiver, it interrupts the light beam, causing a reduction in the received light intensity. This drop is used to detect the presence or absence of the object.

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Applications

• Detection of opaque or transparent objects on conveyor belts and assembly lines.

• Counting and position detection of small parts.

• Used in harsh industrial environments where dust, oil, or moisture are present.

• Monitoring presence or absence of large machinery parts.

• Safety systems where reliable non-contact detection is critical.

• Packaging, electronics manufacturing, and automotive production lines.

• Situations requiring detection without background interference or high precision.

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Angled fiber optic proximity sensors feature a fiber optic sensor head where the optical fibers and light path are arranged at a 90-degree angle to the cable or sensor body. This configuration allows the sensor to fit into tight spaces or where a straight optical path is impractical, offering a compact solution without compromising sensing performance.

Applications

• Object detection or presence sensing in confined or angled locations on manufacturing equipment.

• Automated assembly lines requiring sensors to fit around corners or within compact areas.

• Position verification where straight-line sensor placement is limited.

• Inspection of surfaces with limited space for direct sensor line-of-sight.

• Suitable for harsh industrial environments due to durable fiber optics and protective housings.

• Used in packaging, electronics, semiconductor handling, and quality control tasks.

Special fiber optic proximity sensors are customized sensors designed to meet specific detection requirements in challenging industrial environments.

Applications

• Widely used in smart manufacturing, packaging machinery, plastics machinery, and other industrial fields requiring specialized sensing solutions.

• Suitable for harsh environments where conventional sensors would fail due to extreme heat, pressure, or chemical exposure.

• Ideal for applications demanding high precision and multifunctional detection in a compact form.