Technologie des capteurs laser TOF pour la mesure avancée de la distance

Technologie des capteurs laser TOF pour la mesure avancée de la distance

Time-of-Flight (TOF) technology has become the foundation of many modern measurement solutions, providing accurate, fast, and reliable distance data. At Meskernel, we have developed two product lines based on TOF principles: capteur de distance laser in the visible spectrum (510–550nm green and 610–690nm red) and invisible modules de télémétrie laser. Both are designed to serve different application scenarios, from industrial automation to UAV navigation, ensuring our customers have the right solution for every distance measurement challenge.

How TOF Laser Sensors Work

A TOF laser sensor measures distance by calculating the time light takes to travel to an object and back. There are two main approaches:

• iTOF (Indirect Time-of-Flight): Uses a modulated continuous laser beam and measures phase shift. This method is well-suited for short to medium distances with high precision.
• dTOF (Direct Time-of-Flight): Uses short laser pulses and measures the return time directly. This method is optimal for long-range, high-accuracy measurements, even in bright outdoor conditions.

Both principles are applied in our product lineup, allowing us to provide solutions tailored to specific ranges and accuracy needs.

iToF Laser Distance Sensor

Notre capteur de distance laser series is based on iTOF principles, delivering high-precision short to medium-range measurement with an accuracy of ±1mm. With visible green or red laser options, they are ideal for applications where the beam needs to be seen during alignment or calibration.

Caractéristiques principales

• Millimeter-level accuracy, with the highest precision reaching 1mm – LDL-T Laser sensor
• Measurement range up to 200m
• High measurement frequency up to 5000Hz – LDJU Laser Sensor
• Interfaces include Modbus, UART, RS232, and RS485
• Using visible light, 510-550nm green laser and 610-690nm red laser

Applications

• Industrial automation and smart factories
• Robotics for navigation and obstacle detection
• Smart agriculture for crop height and machinery positioning
• Logistics systems for package measurement and warehouse automation

In these cases, the capteur de mesure laser provides not only accuracy but also reliability in dynamic and demanding environments.

dToF Laser Rangefinder Module

For applications requiring long-range precision, our 905nm laser rangefinder module is the optimal choice. Based on dTOF technology, it measures distances from 3m to over 3000m with accuracy between 0.5m and 1m. The module is built with a metal housing for durability and is classified as eye-safe, making it suitable for outdoor and professional use.

Caractéristiques principales

• Long distance measuring capability up to 3000m – PTFG Laser Rangefinder Sensor
• Eye-safe 905nm laser diode
• High accuracy in all-weather and bright light conditions
• Robust design with wide operating temperature range

Applications

• UAVs and drones for altitude measurement and navigation
• Surveying and mapping in outdoor environments
• Security and perimeter monitoring systems
• Sports optics and hunting rangefinders

In these scenarios, the long range distance sensor ensures reliable measurement, even over kilometers, supporting real-time decision-making in critical applications.

iTOF vs dTOF in Our Product Line

• iTOF (Laser Distance Sensor): High frequency, millimeter-level accuracy, short-to-mid range (0.03–200m), visible laser for easy alignment.
• dTOF (905nm Rangefinder Module): Long range up to 3km, robust performance outdoors, accuracy up to 1m, ideal for UAVs and field applications.

By offering both solutions, we ensure customers can choose between compact high-precision sensors for automation or powerful long-range modules for surveying and navigation.

Future of TOF Laser Sensors

As industries move towards smarter and more autonomous systems, demand for both compact Détecteurs de distance à laser et long distance measuring sensors continues to grow. The integration of TOF technology into robotics, UAVs, and industrial systems is creating safer, faster, and more efficient workflows. At Meskernel, our focus remains on refining TOF-based products to deliver even greater accuracy, range, and ease of integration.

Conclusion

Le TOF laser sensor is at the heart of modern distance measurement technology. With our Détecteurs de distance à laser et modules de télémétrie laser, we provide versatile solutions that meet the needs of both precision industrial environments and long-range outdoor applications. Whether you require a capteur de mesure laser for high-speed automation or a long range distance sensor for UAV and surveying tasks, our TOF-based products offer reliable, accurate, and future-ready performance.