ACOUSTIC DETECTION DEVICE AND ACOUSTIC CAMERA USING A MEMS MICROPHONE ARRAY

摘要

The present invention relates to an acoustic camera using a microelectromechanical system (MEMS) microphone array, consisting essentially of: an acoustic detection device, (30) including a printed circuit board (20) on which a plurality of MEMS microphones (10) are mounted, for transmitting a detected acoustic signal to a data collection unit (40); the data collection unit (40), connected to the acoustic detection device (30), for sampling a sound-related analog signal transmitted from the acoustic detection device (30) to convert same into a sound-related digital signal, and then transmitting the converted digital signal to a central processing unit (50); the central processing unit (50), connected to the data collection part (40), for calculating a noise level related to each of the MEMS microphones (10) on the basis of the sound-related digital signal transmitted from the data collection unit (40); and a display unit (60), connected to the central processing unit (50), for displaying, as colors, noise levels related to each of the MEMS microphones (10) calculated by the central processing unit (50).