JIAN Ze-ming, CHEN Shang, ZHANG Guo-jun, et al. Research of array MEMS vector hydrophone with four units on a chip[J]. 2015, 34(1): 9-12+16. DOI: 10.13873/J.1000-9787(2015)01-0009-04.
Introduce a kind of 2 × 2 array MEMS vector hydrophone with four units on a chip
which is designed to meet urgent demand of higher reliability of MEMS vector hydrophone
to ensure when one of the sensitive microstructure is damaged or doesn’t work properly
the hydrophone can still work well. The microstructure of the hydrophone is simulated by ANSYS; then
microstructure machining process is designed; array MEMS vector hydrophone is measured by underwater standing wave field. Test results show that reliability of hydrophone is improved significantly and sensitivity of hydrophone is- 179 d B( 0 d B = 1V / μPa)
possessing a good directional pattern in the form of "8"shape.