Engenheiros nos EUA dizem ter construído mãos robóticas capazes de diferenciar diferentes texturas.
Equipadas com sensores de toque conhecidos como BioTac - que usam algoritmos inteligentes -, estas mãos selecionam, monitoram e interpretam o que detectam com seus dedos mecânicos.
Os dedos robóticos têm o mesmo tamanho de um dedo humano e "impressões digitais" na superfície capazes de sentir texturas.
Estas impressões digitais permitem a percepção dos materiais tocados, por meio de vibrações.
O trabalho da equipe liderada por Gerald Loeb e Jeremy Fishel da Escola de Engenharia Viterbi, filiada à Universidade do Sul da Califórnia, foi divulgado na publicação Frontiers of Neurorobotics.
Quando o dedo, coberto com uma "pele" flexível cheia de fluído, passa sobre uma textura, a pele vibra de diferentes maneiras. Essas vibrações são capturadas por um transmissor de som localizado dentro dos dedos de metal.
Assim, a mão robótica detecta o tipo de textura, a forma e as propriedades térmicas do objecto. E com mais precisão do que o dedo humano.
Ela pode detectar 117 materiais comuns, com uma precisão de 95%.
Os criadores dizem que a tecnologia pode ser útil na fabricação de próteses equipadas com o sentido do toque.
O projecto foi financiado pela Academia Nacional de Ciências dos Estados Unidos para desenvolver melhores mãos protéticas para amputados.
U.S. engineers say they have built robot hands capable of differentiating between different textures.
Equipped with touch sensors known as BioTac - using intelligent algorithms - these hand select, monitor and interpret what they have to detect its mechanical fingers.
The robotic fingers are the same size of a human finger and "fingerprints" on the surface able to feel textures.
These fingerprints allow the perception of material moved, by means of vibrations.
The work of the team led by Gerald Loeb and Jeremy Fishel Viterbi School of Engineering, affiliated to the University of Southern California, was published in the journal Frontiers of Neurorobotics.
When the finger, covered with a "skin" flexible full of fluid, passes over a texture, the skin vibrates in different ways. These vibrations are captured by an audio transmitter located within the metal fingers.
Thus, the robotic hand detects the type of texture, shape and the thermal properties of the object. And with more precision than the human finger.
It can detect 117 common material with a precision of 95%.
The creators say the technology can be useful in the manufacture of prostheses equipped with the sense of touch.
The project was funded by the National Academy of Sciences of the United States to develop better prosthetic hands for amputees.
Equipped with touch sensors known as BioTac - using intelligent algorithms - these hand select, monitor and interpret what they have to detect its mechanical fingers.
The robotic fingers are the same size of a human finger and "fingerprints" on the surface able to feel textures.
These fingerprints allow the perception of material moved, by means of vibrations.
The work of the team led by Gerald Loeb and Jeremy Fishel Viterbi School of Engineering, affiliated to the University of Southern California, was published in the journal Frontiers of Neurorobotics.
When the finger, covered with a "skin" flexible full of fluid, passes over a texture, the skin vibrates in different ways. These vibrations are captured by an audio transmitter located within the metal fingers.
Thus, the robotic hand detects the type of texture, shape and the thermal properties of the object. And with more precision than the human finger.
It can detect 117 common material with a precision of 95%.
The creators say the technology can be useful in the manufacture of prostheses equipped with the sense of touch.
The project was funded by the National Academy of Sciences of the United States to develop better prosthetic hands for amputees.
Sem comentários:
Enviar um comentário