Title: Nonbarrierboard one-direction low-frequency wide-band high-pressure transducer
Application Number: 85103008 Application Date: 1985.04.18
Publication Number: 1004141 Publication Date: 1986.10.15
Approval Pub. Date: Granted Pub. Date: 1988.12.07
International Classifi-cation: B06B1/00,G01S7/52,H04R17/00
Applicant(s) Name: Acoustics Inst, Chinese Academy of Sciences Address:
Inventor(s) Name:
Attorney & Agent: LI TAIMIN
Abstract:
     Lattice element with Pascal worm line directive property is formed without acoustic reflected barrierboard, acoustic dephasing structure and electric delay net, but by selecting suitable amplitude, phase and space of elements, and then latticed for attaining a better one-directive property in low-frequency and wide-band. The actual measuring results of a assembled six-element lattice at 3-10 kc is: the maximum rear and side lobe level Bs of one-directive beam<-13.5db, big horizontal opening angle, moderate sensitivity, light weight, small volume, compact structure, and higher static hydropressure.
Time: 10
<- Previous Patent:Wide band hydrophone with complex...   |  Next Patent:Horn speaker ->