A novel acoustic imaging system based on digital MEMS sensors

作者：Chen Linsong^*; Cao Yueyun; Guo Wenyong

来源：International Conference on Applied Science and Engineering Innovation (ASEI), 2015-08-30 to 2015-08-31.

• acoustic imaging
• MEMS microphone
• FPGA
• DSP
• beamforming

Developed an acoustic imaging system applied in acoustic test. The acoustic array is made up of 260 MEMS microphones and control by a FPGA, which also in charge of transferring data by optical fiber. The mainframe is control by a FPGA. A DSP is in charge of processing the data from acoustic array. Two embedded system work for saving data and displaying acoustic image. Test results verified that the system can satisfy the need of acoustic imaging for machinery noise and gas-leakage noise in normal workshop. This system has a wide application.

• 出版日期2015
• 单位中国人民解放军海军工程大学