Soft mechanical arm assembly optical sensor with human touch


According to the British Daily Mail, robots have been used on production lines for decades, enabling automated processing and rapid assembly of many items such as computer accessories and automotive parts. Although the robotic arms are very practical, they still lack the human arm-like touch. At present, scientists design a soft mechanical arm that can detect the texture and shape of the object through touch.

Researchers hope that soft robotic arms will become more sensitive prosthetics, or help doctors complete surgery. Based on current technology, in order to enable robots to hold objects, motors or liquid joints that conduct electrical signals are often required.

At present, Cornell University engineers use a different method, using light-carrying signals combined with extendable sensors. By changing the light signals carried, their optical waveguides can detect the external environment and the light will be distorted or bent. .

During the sensor test, the Cornell University team combined these sensors with a soft robotic arm that could grab three tomatoes with their fingers and calculate how hard they are based on the distortion of the light signal. At the same time, the maturity of the tomato was discovered. Currently, this latest research is published in the recently published journal Science Robotics.


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