Acoustic interferometer

About: Acoustic interferometer is a research topic. Over the lifetime, 1493 publications have been published within this topic receiving 19355 citations.

Electronic interaction guide structure for acoustic surface waves

Abstract: Acoustic surface waves are produced in a lossy piezoelectric material and are guided therealong due to the interaction between the acoustic waves and a drift electron flow established in an adjacent semiconductor matrial; i.e., the drift electrons impart energy sufficient to sustain propagation of the acoustic surface waves only in the desired direction defined by the drift electron path or channel.

Acousto‐optical effect in photochromics and its applications

Abstract: It was found that the color fading rate of a photochromic film is accelerated when it is exposed to an acoustic field. The investigation of the effect was made with acoustic waves both in water and in air. This newly found effect was utilized as a novel means of mapping an acoustic field. It was shown that the effect can be used to map not only acoustic waves in a liquid, but also acoustic waves generated on the surface of an ADP (ammonium dihydrogen phosphate) crystal. In addition, an acoustic hologram of a small object in water was recorded using this effect.

Levitation of objects using acoustic energy

Abstract: Activated sound source establishes standing-wave pattern in gap between source and acoustic reflector. Solid or liquid material introduced in region will move to one of the low pressure areas produced at antinodes and remain suspended as long as acoustic signal is present.