The technology in robots and bots are developed at a much faster rate using artificial intelligence and biomedical science. today we are going to discuss one of the topics related to biomedical in which human senses are included in robots and making it more advanced, but in this blog, we will discuss how the touch sensor is used in the development of robots.
Rubber electronics and sensors that operate normally even when stretched to up to 50 percent of their length could work as the artificial skin on robots, according to a new study. They could also give flexible sensing capabilities to a range of electronic devices, the researchers said. Like human skin, the material is able to sense strain, pressure, and temperature, according to the researchers. Scientists made the stretchable material by mixing tiny, semiconducting nanofibrils nanowires 1,000 times thinner than a human hair into a solution of a widely used, silicon-based organic polymer, called polydimethylsiloxane, or PDMS for short. When dried at 140 degrees Fahrenheit (60 degrees Celsius), the solution hardened into a stretchable material embedded with millions of tiny nanowires that carry electric current.
The researchers applied strips of the material to the fingers of a robotic hand. The electronic skin worked as a sensor that produced different electrical signals when the fingers bent. Bending a finger joint puts a strain on the material, and that reduces electric current flow in a way that can be measured. For example, to express the sign-language letter “Y,” the index, middle and ring fingers were completely folded, which created a higher electrical resistance. The thumb and pinky fingers were kept straight, which produced lower electrical resistance. Using the electrical signals, the researchers were able to spell out “Scientists” in American Sign Language. Scientists said They are already working to improve the material’s electronic performance and stretchiness well beyond the 50 percent mark that was tested in the new study
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