Laser Triangulation

Optex amplified laser triangulation sensors are precision distance-measuring devices designed for industrial automation applications where accurate, stable measurement is required. Using the laser triangulation principle, these sensors project a focused laser spot onto a target and detect the reflected light on a position-sensitive element. The angle of the reflected beam changes with distance, allowing the sensor to calculate displacement with high repeatability.

Unlike basic photoelectric sensors that simply detect presence or absence, amplified laser triangulation sensors provide precise analog distance measurement, making them suitable for quality control, positioning, thickness monitoring, and height measurement tasks.

Key Features

• High precision and repeatability for micrometer-level measurements

• Small laser spot size for detecting fine details and small components

• Built-in amplifier, eliminating the need for a separate control unit

• Stable detection across varying surface colours and finishes

• Analog and digital outputs for integration with PLC and control systems

Available Measurement Ranges

Optex amplified laser triangulation sensors are available in multiple measurement ranges to suit different applications, typically including:

• Short-range models: approximately 30–100 mm

• Mid-range models: approximately 100–300 mm

• Longer-range models: up to 400–500 mm, depending on the series

Each range offers a defined measurement window with high linearity and consistent performance across the sensing span.