. Elements of acoustical engineering. Electro-acoustics; Sound. 174 MICROPHONES tion. For a limited frequency range of reproduction the nonlinear dis- tortion is not particularly objectionable. A response frequency characteristic of the microphone shown in Fig. is shown by the graph. The diaphragm of this microphone is a circular plate supported at the edge, see Sec. Below the fundamental reso- nance frequency the displacement is proportional to the pressure. Since the change in resistance of the carbon button and the resultant developed voltage is proportional to the displacement, th
. Elements of acoustical engineering. Electro-acoustics; Sound. 174 MICROPHONES tion. For a limited frequency range of reproduction the nonlinear dis- tortion is not particularly objectionable. A response frequency characteristic of the microphone shown in Fig. is shown by the graph. The diaphragm of this microphone is a circular plate supported at the edge, see Sec. Below the fundamental reso- nance frequency the displacement is proportional to the pressure. Since the change in resistance of the carbon button and the resultant developed voltage is proportional to the displacement, the output will be independent of the frequency below the fundamental resonance frequency. These observations are supported by the response frequency characteristic which. 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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