Patent ID: 7275437
Filing Date: 2007-10-02
Classification: G01N

Abstract:
1. An acoustical cell having a resonant cavity for receiving a specimen for analysis comprising: a layered structure including a main frame comprising a block including having oneopposite lateral surfaces and an interstice having open lateral ends extending between the opposite lateral surfaces; and having exterior surfaces that engage in use with walls an inner wall having marginal edges for engaging each corresponding lateral surface for closing the end of the open ends of the interstice to thereby define the reasonant cavity for receiving the specimen; a supporting frame comprising an outer wall for each corresponding inner wall, having marginal edges, said outer wall being disposed in spaced relation with each inner wall; and side wall portions connecting the margins of the inner and outer walls to form a partially closed space therebetween; and an electro-acoustical transducer assembly including an electro-acoustical transducer acoustically coupled to at least one of the inner walls.