American specialists from the Massachusetts Institute of Technology and the Rhode Island School of Design have developed a new type of fabric. She is able to perceive sounds, like the human ear. At the same time, it works in the same way as the human ear, picking up the smallest signals.
Experts used a piezoelectric material to create the fabric. It makes it possible to turn sounds into special signals that can be tracked, or act on these sounds. For example, with the help of clothes made of similar fabric, it will be possible to receive calls or monitor the pulse.
The team of scientists set themselves the goal of creating the equivalent of a human ear in the form of tissue. It had to be durable, soft, comfortable and able to detect sound. As a result, a fabric with hard fibers was used, which turns sound waves into vibrations. The fibers also had to be bent along with the fabric in order to create a current.
The development was tested with a laser. The fabric was attached to the sheet, and then various sounds were turned on in the columns nearby. The volume was different. Further, with the help of the sheet, an electric current was produced.
In addition, a team of specialists created a material with yarn to obtain panels of machine-washable fabrics. As a result of the experiments, it turned out that the fabric can determine the angle of sound with an accuracy of 1 degree at a distance of up to three meters. And if you attach a fiber to the lining of a shirt, then it can measure the heartbeat.