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- W919390355 abstract "Tests were conducted on an inexpensive low-pass filter comprising parallel sheets of fiber glass gauze. In these tests a spectral wave generator was used and transmissivity was measured: (1) for a range of low amplitude monoperiodic waves and (2) for various combinations of amplitudes of two of these wave frequencies. The results indicate linearity (approximately 5% scatter) and little or no interaction. From these results an empirical transfer function has been derived and transmissivity computed and plotted for a flat spectrum and a peaked (Bretschneider) spectrum for various filter lengths. An attempt is made to generalize the results (from wall attenuation experiments) and the effect of various filter densities is inferred for the flat spectrum. Plotted results are presented to allow a quick estimate for an economic filter design." @default.
- W919390355 created "2016-06-24" @default.
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- W919390355 date "1973-02-01" @default.
- W919390355 modified "2023-10-18" @default.
- W919390355 title "Approximately Linear Low-Pass Wave Filters" @default.
- W919390355 doi "https://doi.org/10.1061/awhcar.0000178" @default.
- W919390355 hasPublicationYear "1973" @default.
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