Patent ID: 11940573
Assignee: HARBIN ENGINEERING UNIVERSITY
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 4:
5. The navigation-communication-integrated metamaterial sonar for underwater vehicles according to claim 2, wherein the transducer is an emitting-receiving separated transducer; the number of the discs in the disc array of the high directivity sonar is 16, the underwater navigation working frequency band is 25-30 kHz, the underwater acoustic communication working frequency band is 32-36 kHz, the radius w1 of the disc array is 15 mm, the period p is 20 mm; the board thickness t1 of the each disc is 11 mm; and the thickness g of the each water gap is 9 mm, and the radius w2 of the backboard is 35 mm.