Acousto-Optics is an exciting branch of technology that studies the acoustic interactions between sound waves and ultrasound waves, particularly the diffraction of visible light through an optics lens. These waves have far less energy than the sound waves so they are super quiet and traveling at the speed of light. The light that hits one of these waves will be bent around the lens and will reflect back to the detector. This way, the differences in frequencies can be measured and used to create an array of extremely sensitive instruments.
Acousto-optics devices are also used in laboratories. These devices are used to analyze sound samples or isolated signals. They are extremely helpful in hearing and measuring sounds that cannot be detected by ears. Acousto-optics devices are also used in museums. These devices can be found in libraries, exhibits, and other venues. Museums often play recordings from speakers attached to the ceiling of the building. These are used to enhance the viewing experience for people. Acousto-optics are also used to prevent noise from entering into space. Noise can come from various sources. It can come from outside, such as traffic noises, as well as inside, such as machinery. When acousto-optics are applied to space, they capture the noise, and then they filter it before being distributed to other places in the room.
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