Performance analysis of a cost-effective electret condenser microphone directional array

9th AIAA/CEAS Aeroacoustics Conference and Exhibit

Volumn , Issue , 2003, Pages

  Humphreys Jr , William M ^a,b   Gerhold, Carl H ^a,c   Zuckerwar, Allan J ^a,b   Herring, Gregory C ^a,b   Bartram, Scott M ^a,b  

^a NASA LANGLEY RESEARCH CENTER   (United States)

^b Advanced Measurement and Diagnostics Branch   (United States)

^c Aeroacoustics Branch   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

AEROACOUSTICS; BEAMFORMING; COST EFFECTIVENESS; ELECTRETS; FREQUENCY RESPONSE; MICROPHONES;

BEAMFORMING ALGORITHMS; CONDENSER MICROPHONE; HIGH-DENSITY ARRAYS; IMPLEMENTATION COST; INSTRUMENTATION SUITE; LABORATORY TESTING; PERFORMANCE ANALYSIS; SIGNAL CONDITIONING CIRCUITRY;

COST BENEFIT ANALYSIS;

EID: 85087188760     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.2514/6.2003-3195     Document Type: Conference Paper

References (20)

1. Gramann, R.A., and Mocio, J.W., "Aeroacoustic Measurements in Wind Tunnels Using Adaptive Beamforming Methods", Journal of the Acoustical Society of America, Vol. 97, Number 6, pp. 694-701, 1995.
2. nd AIAA/CEAS Aeroacoustics Conference, State College, PA, 1996.
3. rd AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, 1997.
4. th AIAA/CEAS Aeroacoustics Conference, Toulouse, France, 1998.
5. Storms, B.L., Ross, J.C., Horne, W.C., Hayes, J.A., Dougherty, R.P., Underbrink, J.R., Scharpf, D.F., and Moriarty, P.J., "An Aeroacoustic Study of an Unswept Wing with a Three-Dimensional High-Lift System", NASA TM-1998-112222, 1998.
6. Brandstein, M., and Ward, D. (ed.), Microphone Arrays - Signal Processing Techniques and Applications, Springer- Verlag, Berlin, Germany, 2001.
7. Mueller, T.J. (ed.), Aeroacoustic Measurements, Springer-Verlag, Berlin, Germany, 2002.
8. Sheplak, M., Breuer, K.S., and Schmidt, M.A., "A Wafer-Bonded, Silicon-Nitride Membrane Microphone with Dielectrically- Isolated Single Crystal Silicon Piezoresistors", Proceedings of the Solid- State Sensor and Actuator Workshop, pp. 23-26, 1998.
9. Saini, R., Bhardwaj, S., Nishida, T., and Sheplak, M., "Scaling Relations for Piezoresistive Microphones", Proceedings of the ASME IMECE 2000, Orlando, Florida, 2000.
10. Arnold, D.P., "A MEMS-Based Directional Acoustic Array for Aeroacoustic Measurements", Master's Thesis, University of Florida, Gainesville, Florida, 2001.
11. Hsieh, W.H., Yao, T.J., and Tai, Y.C., "A High Performance MEMS Thin-film Teflon Electret Microphone", 1999 International Conference on Solid-State Sensors and Actuators (Transducer'99), Sendai, Japan, 1999.
12. Welch, P.D., "The Use of Fast Fourier Transform for the Estimation of Power Spectra: A Method Based on Time Averaging Over Short, Modified Periodograms", IEEE Transactions on Audio Electroacoustics, Vol. AU-15, pp. 70-73, 1967.
13. rd AIAA/CEAS Aeroacoustics Conference, Atlanta, GA, 1997.
14. International Electrotechnical Commission (IEC), Standard 60268-4, "Sound System Equipment - Part 4: Microphones", 1997.
15. Ngo, K.C.T., and Zuckerwar, A.J., "Acoustic Isolation Vessel for Measurement of the Background Noise in Microphones", Journal of the Acoustical Society of America, Vol. 93, Number 5, pp. 2974-2980, 1993.
16. st Aerospace Sciences Meeting and Exhibit, Reno, NV, 1998.
17. th Aeroacoustics Conference, Seattle, WA, 1999.
18. th AIAA Aerospace Sciences Meeting and Exhibit, Reno, NV, 2002.
19. Norum, T.D. and Seiner, J.M, "Measurements of Mean Static Pressure and Far-Field Acoustics of Shock-Containing Supersonic Jets", NASA Technical Memorandum 84521, September, 1982.
20. Lilley, G.M., "Jet Noise Classical Theory and Experiments", published in "Aeroacoustics of Flight Vehicles: Theory and Practice", NASA Reference Publication 1258, Volume 1, pp. 211-289, 1991.