Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934)
[ACTIVE]
Piezoelectric Microphones
Metadata
- Publisher
- SMPTE — White Plains, NY, USA
- Doc Type
- Journal Article
- Content Type
- Original Research
- Abbreviated Title
- J SMPE
- Volume
- 23, No. 4, pp. 196–209
- Abstract
- The development of the. Rochelle salt crystal microphone, with particular reference to the grille and sound-cell type, is described; and the construction of the sound-cells and the method employed for rendering them air-tight and water-proof are explained. Due to the small size of the microphones they are relatively free from distortion arising from cavity resonance, diffraction, and phase-shift, and are non-directional. Comparative response curves ranging in frequency from 50 to 10,***000 cycles per second are presented. Special types of piezoelectric microphones for sound picture recording, radio broadcasting, and theater sound-reinforcing systems are described. Some of their physical, electrical, and acoustical characteristics are discussed, including those of a new unidirectional instrument.
- Publication Date
- 1934-10-01
- DOI
10.5594/J05439- ISSN
- Print:
0097-5834 - Link
- https://doi.org/10.5594/J05439
- Author(s)
- A. L. WilliamsBrush Development Co., Cleveland, Ohio.
- Copyright
- © 1934 Society of Motion Picture and Television Engineers, Inc.
Bibliographic Reference(s)
- 1 Becquerel A. E. : Annales de Chemie et de Physique , 22 ( 1833 ), p. 5 . EXTERNAL
- 10 Rayleigh Lord : “Theory of Sound,” II , p. 274 . EXTERNAL
- 11 Stewart G. W. : Phys. Rev. , 33 ( 1911 ), p. 467 . EXTERNAL
- 12 Ballantine S. : Phys. Rev. , 32 ( 1928 ), p. 988 . EXTERNAL
- 13 Harrison H. C. Flanders P. B. : “An Efficient Miniature Condenser Microphone System,” Bell Sys. Tech. J. , II (July, 1932 ), No. 3 , p. 451 . EXTERNAL
- 14 Ballantine S. : “High-Quality Radio Broadcast Transmission and Reception,” Proc. I. R. E. , 22 (May, 1934 ), No. 5 , p. 589 . EXTERNAL
- 2 Curie J. Curie P. : “Hemihedral Crystals,” Compte Rendu , No. 91, pp. 294 , 383 , 387 . EXTERNAL
- 3 Reicke Voight : Annalen der Physik und Chemie , 45 ( 1892 ), p. 523 . EXTERNAL
- 4 Curie J. Curie P. : “Traite de Radioactivite” ( 1908 ). EXTERNAL
- 5 Valasek J. : Phys. Rev. , 20 ( 1922 ), p. 639 . EXTERNAL
- 6 Nicholson A. M. : “The Piezoelectric Effect in the Composite Rochelle Salt Crystal,” Proc. A.I.E.E. , 38 (Nov., 1919 ), No. 11 , p. 1315 . EXTERNAL
- 7 Sawyer C. B. : “The Use of Rochelle Salt Crystals for Electrical Reproducers and Microphones,” Proc. I. R. E. , 19 (Nov., 1931 ), No. 11 , p. 2020 . EXTERNAL
- 8 Valasek J. : Phys. Rev. , 19 ( 1922 ), p. 478 . EXTERNAL
- 9 Ballantine S. : “A Piezoelectric Loud Speaker for the Higher Audio Frequencies,” Proc. I. R. E. , 21 (Oct., 1933 ), No. 10 , p. 1406 . EXTERNAL
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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J05439
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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J05439
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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at https://doi.org/10.5594/J05439
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<span class="citation">A. L. Williams; <cite>Piezoelectric Microphones</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934. Available at <a href="https://doi.org/10.5594/J05439" target="_blank" rel="noopener">https://doi.org/10.5594/J05439</a></span>
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A. L. Williams; Piezoelectric Microphones, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934
doi: 10.5594/J05439
url: https://doi.org/10.5594/J05439
doi: 10.5594/J05439
url: https://doi.org/10.5594/J05439
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<li> A. L. Williams; <cite id="bib-10-5594-j05439">Piezoelectric Microphones</cite>, Journal of the Society of Motion Picture Engineers ( Volume: 23, Issue: 4, October 1934); SMPTE, 1934 <span class="doi">10.5594/J05439</span> </li>