. Elements of acoustical engineering. Electro-acoustics; Sound. 68 ANALOGIES way the attenuation in the mechanical system of Fig. will be greater as the sliding resistance is made larger. The acoustical system of Fig. shows a pipe line with a system of slits in series with the line. The slits form an acoustic resistance. See Sec. The attenuation in this sys- tem will increase as the acoustic resistance is made larger. ââ WW* /A'/'/'/'Ai^ . E 4â,,,,}j^^>»>i >>,>>â¢â¢â¢ 111 iiiirrm //}}}}})/ H ,,,,,,,,,â,H,,IIIH3»>>>>11. ^^77777^ K MECHANICAL L
. Elements of acoustical engineering. Electro-acoustics; Sound. 68 ANALOGIES way the attenuation in the mechanical system of Fig. will be greater as the sliding resistance is made larger. The acoustical system of Fig. shows a pipe line with a system of slits in series with the line. The slits form an acoustic resistance. See Sec. The attenuation in this sys- tem will increase as the acoustic resistance is made larger. ââ WW* /A'/'/'/'Ai^ . E 4â,,,,}j^^>»>i >>,>>â¢â¢â¢ 111 iiiirrm //}}}}})/ H ,,,,,,,,,â,H,,IIIH3»>>>>11. ^^77777^ K MECHANICAL L ACOUSTICAL Fig. Aâ an electrical resistance in series with a line. The mechanical and acoustical equivalents are shown in B and C. D an electrical resistance in shunt with a line. The mechanical and electrical equivalents are shown in E and F. A " T " and " tt " electrical resistance network are shown in G and J. The mechanical and acoustical equivalents are shown in H, I, K and L. K. Resistance in Shunt with a Line and the Mechanical and Acoustical Equivalents. â Figure shows a resistance in shunt with a line. The attenuation in this case will be greater as the resistance is made smaller. In the same way the attenuation in the mechanical system of Fig. £ will be greater as the sliding resistance is made smaller. In the acoustical. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Olson, Harry Ferdinand, 1901-. New York, D. Van Nostrand company, inc.
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