Skin-like, flexible sensor lets robots detect us

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A new sensor for robots is designed to make our physical interactions with these machines a little smoother—and safer. The sensor, which is now being commercialized, allows robots to measure the distance and angle of approach of a human or object in close proximity.

Industrial robots often work autonomously to complete tasks. But increasingly, collaborative robots are working alongside humans. To avoid collisions in these circumstances, collaborative robots need highly accurate sensors to detect when someone (or something) is getting a little too close.

Many sensors have been developed for this purpose, each with its own advantages and disadvantages. Those that rely on sound and light (for example, infrared or ultrasonic time-of-flight sensors) measure the reflections of those signals and must therefore be closely aligned with the approaching object, which limits their field of detection.

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