Precise and flexible 3D ToF sensor module

Precise and flexible 3D ToF sensor module

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By Ally Winning

Gabriele Fulco, European Product Marketing Manager Sensors at OMRON said, “Our new sensor can accurately and easily detect the surrounding environment, which will contribute to the more widespread use of autonomous robots as well as the automation of various other machinery and equipment. OMRON’s new B5L can be fitted to moving objects such as autonomous mobile robots, to provide real-time contextual information such as guidance, collision avoidance, and cliff detection. Alternatively, located in a fixed position, the sensor can accurately detect moving objects in the field of view. It is thus suited to use in automated packaging equipment, security systems, intruder detection, and patient-monitoring and elderly-care systems.”

The OMRON B5L 3D TOF (Time-of-Flight) Sensor Module calculates distances to objects in real time by measuring the round-trip time for near-infrared radiation from the module’s emitter to be reflected from objects in the field of view and return to the receiver. The B5L Series uses a unique optical design technology that provides a stable measurement of three-dimensional distance information over a wide area, even when it is operating in sub-optimal conditions. The device runs at up to 20 frames per second and it is specified for long periods of continuous operation.

The 103mm x 43mm module has a 24V DC power connector and Micro-USB communication port, for easier integration and to provide more flexibility. Featuring a 940nm near-infrared emitter and 240 x 320 pixel receiving array, the sensor is able to provide ranging information for the entire field of view and can measure the absolute distance to objects from 0.5m to 4m. The module has ±2% precision (at 2m). It has built-in temperature compensation to simplify its integration by eliminating the requirement for a separate compensation processing circuit.

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