Sonar Transducer with Tuning Plate and Tuning Fluid
Abstract
A method for maximizing the radiated power of a transducer, such as a sonar transducer, includes providing a transducer system comprising a transducer operating at a frequency f and having a radiating face, a tuning fluid having a density rho(sub 1) and a speed of sound c(sub 1) a tuning plate having a density rho(sub p) and a thickness t, and an external fluid having a density rho(sub 2) and a speed of sound c(sub )2; and tuning the transducer to have a maximum. specific acoustic resistance at the radiating face in accordance with the equation: (2PI F RHO(SUB P)T)SQUARED/RHO(SUB 2) C(SUB 2) RHO (SUB 1) C(SUB 1) PLUS RHO(SUB 1) C(SUB 1)/RHO(SUB 2 C(SUB 2)rho(sub 1) c(sub 1). The present invention also relates to changing the resonance frequency of a transducer including providing a transducer system with an operating frequency f, the tuning plate spaced from the transducer face by a distance S, and the. tuning fluid between the transducer face and the tuning plate and changing the resonance frequency in accordance with the equation rho(sub 1) c(sub 1) cot(2 pi f s/c(sub 1)).
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 09, 2002
- Accession Number
- ADD020060
Entities
People
- Theodore J. Mapes
Organizations
- United States Department of the Navy