## Abstract A dualβpolarized array operating in the 250β500βMHz frequency range is analyzed and realized for RCS measurements in an anechoic chamber. The elementary dualβpolarized source is presented, and then the array is completely analyzed with a parallel code solver. A comparison between comput
A design criterion for sound-absorbent lining of an anechoic chamber
β Scribed by W.A. Davern
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 84 KB
- Volume
- 5
- Category
- Article
- ISSN
- 0003-682X
No coin nor oath required. For personal study only.
β¦ Synopsis
The usual criterion of 10 % or less pressure reflection for lining materials of anechoic chambers is related to the real and imaginary parts of the specific acoustic impedance ratio, allowing some more direct relationship between the acoustic and physical properties of the lining material.
π SIMILAR VOLUMES
In this paper an application of the Chebyshev's criterion to the optimal design of the damped dynamic vibration absorber is presented. The results are summarized in ready-to-use computational graphs. The reliability of the proposed method is demonstrated through a comparison of the numerical results
The optimal absorber design for a randomly excited planar structure is presented in this paper. The Lagrange equations are derived with generalized coordinates. The transfer functions in closed form are obtained thereafter. Based on the band-limited whitenoise excitation, the optimum tuning and damp