Ultrasensitive directional microphone arrays for military operations in urban terrain.

Hall, Neal A. ; Peterson, Kenneth Allen ; Parker, Eric Paul ; Resnick, Paul James ; Okandan, Murat ; Serkland, Darwin Keith

关键词: MILITARY EQUIPMENT;    ACOUSTIC MEASUREMENTS;    DESIGN;    SENSORS;    FABRICATION;    MEMBRANES;    SENSITIVITY Sensors.;    Acoustics.;    Microelectromechanical systems.;   

DOI  :  10.2172/934861
RP-ID  :  SAND2007-7419
PID  :  OSTI ID: 934861
Others  :  TRN: US200815%%185

美国|英语

来源: SciTech Connect

【 摘 要 】

Acoustic sensing systems are critical elements in detection of sniper events. The microphones developed in this project enable unique sensing systems that benefit significantly from the enhanced sensitivity and extremely compact foot-print. Surface and bulk micromachining technologies developed at Sandia have allowed the design, fabrication and characterization of these unique sensors. We have demonstrated sensitivity that is only available in 1/2 inch to 1 inch studio reference microphones--with our devices that have only 1 to 2mm diameter membranes in a volume less than 1cm{sup 3}.