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A groundbreaking technology developed in British Columbia (B.C.) is revolutionizing the field of prosthetics and human-robot interactions. The innovative invention utilizes a thin layer of silicone rubber, known as sensor skin, which mimics the properties of human skin and enables delicate tasks to be performed.

The sensor skin is filled with sensory points, allowing it to have the dexterity and sensitivity necessary for intricate movements. When placed over the fingertips of a prosthetic hand, it enables users to perform tasks such as holding an egg or a champagne flute. This advancement has the potential to significantly enhance the capabilities and quality of life for individuals who rely on prosthetic limbs.

Dr. John Madden, an engineering professor at the University of British Columbia and senior study author, explains that the sensor skin utilizes weak electric fields to detect objects, similar to touchscreens. However, unlike touchscreens, the sensor skin is flexible and can detect forces along its surface.

Made primarily of silicone rubber, the sensor skin closely resembles human skin in appearance and texture. It can buckle and wrinkle, providing a more realistic experience. Furthermore, it can be easily scaled up to cover larger areas beyond just the hand.

While the sensor skin is not yet a complete replacement for human skin, it marks a significant advancement in prosthetic technology. Madden highlights that human skin possesses a much larger number of sensing points, which allows for fine motor activities and the detection of heat and damage.

Moving forward, the research team from the University of British Columbia, in collaboration with Frontier Robotics and Honda’s research institute, intends to further explore the capabilities of the sensor skin. They aim to investigate its potential in maneuvering delicately around objects, rather than solely grasping them.

This development holds great promise for the future of prosthetics and human-robot interactions. By bridging the gap between human and machine, the sensor skin may pave the way for more intuitive and efficient interactions between humans and robots.

Sources:
– https://www.sciencedaily.com/releases/2021/11/211106152850.htm

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