MEMS Microphone Array Sensor for Air-Coupled Impact-Echo

  title={MEMS Microphone Array Sensor for Air-Coupled Impact-Echo},
  author={Robin Groschup and Christian U. Grosse},
Impact-Echo (IE) is a nondestructive testing technique for plate like concrete structures. We propose a new sensor concept for air-coupled IE measurements. By using an array of MEMS (micro-electro-mechanical system) microphones, instead of a single receiver, several operational advantages compared to conventional sensing strategies in IE are achieved. The MEMS microphone array sensor is cost effective, less sensitive to undesired effects like acoustic noise and has an optimized sensitivity for… CONTINUE READING
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