Copied Ultrasonic Grating Apparatus
Ultrasonic Grating Apparatus
Ultrasonic Grating ApparatusIncludes:Optical Bench, 1000mm x1Rider, Lateral Adjustment x1Riders, Plain x4Micrometer Eyepiece x1Eyepiece Adapter Ring x1Glass Tank for HF Grating x1HF Generator and Frame x1Optical Table x1Connecting Cords x2Lenses, f = +170mm x2Height Fixing Collar x1Eyepiece Holder, Adjustable x1Lens Holders, Plain x2Adjustable Slit x1Mercury Lamp, 20W, 110V x1The Ultrasonic Grating Apparatus is both a unique demonstration of the interaction of longitudinal sound waves and transverse light waves and also a method for the precise determination of the speed of sound in liquids, which is otherwise difficult to do in the undergraduate lab.The core of the apparatus is a parallel-sided glass tank that houses the liquid sample and contains a lead zirconate titanate (PZT) ultrasonic transducer. The transducer is energized by an RF signal in the 8-12 MHz range. Resonances can be found to set up a standing wave field in the liquid, which results in a periodic variation of the liquid's refractive index along the tank.
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