Researchers at MIT have developed a Flexible, Thin-Film, Lightweight Loudspeaker. This weighs only 2 grams and 120 microns thick, which can generate Hi-Quality Sound, irrespective of the surface on to which the film is bonded to. Te new development will have wide-spread usage in industrial and commercial fields.
An article published by Sci-News dated 27th April 2022 discusses about the new development in which a team of researchers have created an Ultra-Thin, Lightweight Loudspeaker. Normally the speakers found on headphones or audio systems use Electric Current Input and speaker Membrane with a Magnetic Field produces Sound output. The new Speaker employs a thin film of Piezoelectric material which vibrates when a voltage is applied to it, causing the air column above it to vibrate producing the Sound.
The entire Piezoelectric material does not vibrate in the new speaker. The design relies on Tiny Domes on a thin layer of Piezoelectric material. These Domes vibrate individually, thus producing the sound. Thin-Film Loudspeakers on the other hand usually are designed to be freestanding so that they can bent freely to produce the sound. Mounting them to a surface would obstruct the vibration and ability to generate the sound. But the newly developed Thin-Film speakers do not pose this problem due to their advanced design.
The details of this new development is described in the article published by Sci-News. Read it here
