. Elements of acoustical engineering. Electro-acoustics; Sound. Fig. Directional characteristics of a 60° arc as a function of the radius and the wave- length. The polar graph depicts the pressure, at a large fixed distance, as a function of the angle in the plane of the arc. The pressure for the angle 0° is arbitrarily chosen as unity. acteristics of an arc is that the directional characteristics are very broad for wavelengths large compared to the dimensions, and are narrow for RADIUS = J to 30, .9 / ^30 /? i xTi ^_l / \ RADIUS = â¢=â RADWS- RADIUS'2X. Please note that these images ar
. Elements of acoustical engineering. Electro-acoustics; Sound. Fig. Directional characteristics of a 60° arc as a function of the radius and the wave- length. The polar graph depicts the pressure, at a large fixed distance, as a function of the angle in the plane of the arc. The pressure for the angle 0° is arbitrarily chosen as unity. acteristics of an arc is that the directional characteristics are very broad for wavelengths large compared to the dimensions, and are narrow for RADIUS = J to 30, .9 / ^30 /? i xTi ^_l / \ RADIUS = â¢=â RADWS- RADIUS'2X. 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.
Size: 1991px × 1256px
Photo credit: © Paul Fearn / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionameri, bookcollectionbiodiversity
