TOF Laser Sensors: Shaping the Future of Distance Measurement
Time-of-Flight (TOF) technology has become one of the most widely adopted methods for precise and reliable distance measurement. By capturing the time a laser signal takes to travel to an object and return, TOF sensors deliver real-time data with high accuracy. At Meskernel, we specialize in two TOF-based solutions: visible-light laser distance sensors (510–550nm green and 610–690nm red) for short-to-medium range high-precision tasks, and 905nm laser rangefinder modules for long-distance outdoor applications.
This dual approach enables us to provide tailored laser measurement solutions, supporting industries ranging from automation and logistics to UAV systems and surveying.
Understanding TOF: iTOF and dTOF
TOF sensing can be implemented in two main ways:
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Indirect TOF (iTOF): Uses a modulated continuous laser beam and calculates phase shift between emitted and reflected light. iTOF excels in high-resolution, short-to-medium range measurements where precision and repeatability are crucial.
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Direct TOF (dTOF): Sends short laser pulses and directly measures return time. This method ensures stable and accurate results even over kilometers, making it ideal for outdoor and long-distance tasks.
Our laser distance sensor line is built around iTOF technology, while the 905nm laser rangefinder module leverages dTOF for extended ranges.
Visible-Laser Distance Sensors (510–550nm / 610–690nm)
Our compact laser distance sensors are designed for industrial and robotic applications where high-frequency and millimeter-level accuracy are essential. Available in green and red versions, they allow users to visually align the beam during setup, making installation straightforward.
Highlights
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Measurement range: 0.03–80m
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Accuracy: ±1mm
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Frequency: up to 30Hz
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Interfaces: UART, RS232, RS485, Modbus
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Size: only 17 × 7 × 16.5mm, weight 2g
Applications
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Industrial automation: object detection, conveyor monitoring, robotic positioning
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Smart agriculture: crop monitoring, silo level detection
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Logistics: warehouse automation, dimensioning systems
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Robotics: obstacle detection and indoor navigation
In these environments, the high precision laser distance sensor ensures reliable data and smooth system performance.
905nm Laser Rangefinder Modules
For customers requiring long-range capability, our 905nm laser rangefinder modules provide accurate measurements from 100m up to 3000m. Built with dTOF technology, they are engineered for challenging outdoor environments where visibility, sunlight, and long distances demand robust performance.
Highlights
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Measurement range: 3–3000m
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Accuracy: 0.5–1m
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Eye-safe 905nm wavelength
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Durable metal housing, wide operating temperature range
Applications
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UAVs and drones: altitude detection, navigation, terrain following
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Surveying and mapping: precise outdoor measurements over long distances
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Security: perimeter monitoring and surveillance systems
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Sports optics and outdoor rangefinding instruments
As a long range distance measuring sensor, this module brings professional-level performance to sectors that rely on reliable, real-time data collection.
iTOF vs dTOF in Real-World Use
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iTOF sensors (our laser distance sensors) offer compact, fast, and precise short-range measurements that are ideal for automation and robotics.
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dTOF modules (our 905nm rangefinder) deliver long-distance measurement capabilities, ensuring stable performance in outdoor and demanding environments.
By combining both product lines, Meskernel provides a complete portfolio of TOF solutions for varying industrial and commercial needs.
Conclusion
The evolution of the TOF laser sensor has transformed industries by enabling smarter, safer, and more efficient systems. From factory automation to UAV navigation, from robotics to surveying, TOF technology ensures accurate distance measurement across diverse scenarios.
Our visible laser distance sensors and 905nm rangefinder modules embody this progress, delivering precision, reliability, and flexibility for modern applications. Whether you need a compact industrial laser sensor for short-range accuracy or a long range distance measuring sensor for outdoor operations, Meskernel offers a trusted solution that meets the demands of today and prepares for the challenges of tomorrow.