Through-beam right-angle fiber optic sensor

A right-angle through-beam fiber optic sensor uses separate emitter and receiver heads arranged at a right angle for reliable object detection in narrow or restricted spaces.

Overview and Functionality

A through-beam fiber optic sensor consists of a separate emitter and receiver. The emitter sends a light beam through the fiber optic cable to the receiver. When an object interrupts this beam, the sensor detects the change in light intensity, triggering a detection signal. The right-angle design allows installation in tight or confined spaces, making it ideal for complex automation setups where straight-line alignment is difficult .

Construction and Materials

• Fiber Core: High-quality plastic fiber cores ensure stable signal transmission, low loss, and flexibility without easy breakage .
• Sensor Heads: Stainless steel (M3/M4) or nickel-plated copper (M6) heads provide durability, corrosion resistance, and long service life .
• Amplifier Requirement: The sensor heads must be connected to an amplifier, which contains the light source and signal processing electronics .

Key Features

• Sensing Distance: Typically up to 1000 mm, with optional cable lengths of 1 m or 2 m for flexible integration .
• Non-Contact Detection: Prevents damage to both the sensor and the target, suitable for delicate or moving objects .
• High Reliability: Resistant to dirt, dust, and environmental factors, ensuring stable operation even in harsh industrial conditions .
• Fast Response: Capable of detecting objects quickly, supporting high-speed automation processes .

Applications

Right-angle through-beam fiber optic sensors are widely used in:

• Assembly lines and labeling machines
• Vibratory feeding systems
• Automated packaging and recycling equipment
• Agricultural machinery and electronics production lines These sensors are particularly useful where space constraints or complex geometries prevent the use of standard straight-beam sensors .

Advantages

• Flexible Installation: Right-angle heads allow mounting in restricted areas.
• Durable and Corrosion-Resistant: Stainless steel and nickel-plated copper heads extend service life.
• Stable Light Transmission: High-transparency fiber cores reduce signal loss and maintain detection accuracy.
• CE Certified: Ensures compliance with industrial safety and performance standards . In summary, a right-angle through-beam fiber optic sensor provides precise, non-contact object detection in confined spaces, combining durable construction, flexible installation, and reliable performance for industrial automation applications .