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

Claim 3:
4. The navigation-communication-integrated metamaterial sonar for underwater vehicles according to claim 2, wherein the transducer is the emitting-receiving combined transducer; the number of the discs in the disc array of the high directivity sonar is 18, the underwater navigation working frequency band is 7-10 kHz, the underwater acoustic communication working frequency band is 11-13 kHz, the radius w1 of the disc array is 45 mm, the period p is 55 mm; the board thickness t1 of the each disc is 30 mm; the thickness g of the each water gap is 25 mm, and the radius w2 of the backboard is 80 mm.