{"product_id":"united-scientific®-ultrasonic-grating-apparatus","title":"United Scientific® Ultrasonic Grating Apparatus","description":"The 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.\n\nThe 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.","brand":"United Scientific Supplies","offers":[{"title":"Default Title","offer_id":49962248896789,"sku":"USSUGA001","price":4946.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0857\/4897\/3845\/files\/UGA001_20Ultrasonic_20Grating_20Apparatus.jpg?v=1781069750","url":"https:\/\/unitedsupplycorp.com\/products\/united-scientific%c2%ae-ultrasonic-grating-apparatus","provider":"United Supply Corp.","version":"1.0","type":"link"}