Ultrasensitive directional microphone arrays for military operations in urban terrain.
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}.
- Research Organization:
- Sandia National Laboratories
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-94AL85000
- OSTI ID:
- 934861
- Report Number(s):
- SAND2007-7419
- Country of Publication:
- United States
- Language:
- English
Similar Records
Micromachined microphones with diffraction-based optical displacement detection.
Noise Reduction with Microphone Arrays for Speaker Identification
Laser microphone
Journal Article
·
Fri Jul 01 00:00:00 EDT 2005
· Proposed for publication in the Journal of the Acoustical Society of America.
·
OSTI ID:970714
Noise Reduction with Microphone Arrays for Speaker Identification
Technical Report
·
Thu Jan 26 19:00:00 EST 2012
·
OSTI ID:1034487
Laser microphone
Patent
·
Mon Nov 13 23:00:00 EST 2000
·
OSTI ID:873379