Harmonic Analyzers and Synthesizers
Another branch of the analogue calculating machine is the harmonic analyzer and synthesizer. These are machines that study wave motions and related physical and mathematical functions. A brief list of articles on this type of machine follows:
Archer, R. M., Projecting Apparatus for Compounding Harmonic Vibrations, Journal of Scientific Instruments, vol. 14, 1937, pp. 408-410.
Brown, S. L., A Mechanical Harmonic Synthesizer-Analyzer, Journal of the Franklin Institute, vol. 228, 1939, pp. 675-694.
Brown, S. L., and L. L. Wheeler, A Mechanical Method for Graphical Solution of Polynomials, Journal of the Franklin Institute, vol. 231, 1941, pp. 223-243.
Brown, S. L., and L. L. Wheeler, Use of the Mechanical Multiharmonograph for Graphing Types of Functions and for Solution of Pairs of Non-Linear Simultaneous Equations, Review of Scientific Instruments, vol. 13, Nov. 1942, pp. 493-495.
Brown, S. L., and L. L. Wheeler, The Use of a Mechanical Synthesizer to Solve Trigonometric and Certain Types of Transcendental Equations, and for the Double Summations Involved in Patterson Contours, Journal of Applied Physics, vol. 14, Jan. 1943, pp. 30-36.
Fürth, R., and R. W. Pringle, A New Photo-Electric Method for Fourier Synthesis and Analysis, London, Edinburgh and Dublin Philosophical Magazine and Journal of Science, vol. 35, series 7, 1944, pp. 643-656.
International Hydrographic Bureau, Tide Predicting Machines, International Hydrographic Bureau, Special Publication 13, July 1926.
Kranz, Frederick W., A Mechanical Synthesizer and Analyzer, Journal of the Franklin Institute, vol. 204, 1927, pp. 245-262.
Marble, F. G., An Automatic Vibration Analyzer, Bell Laboratories Record, vol. 22, Apr. 1944, pp. 376-380.
Maxwell, L. R., An Electrical Method for Compounding Sine Functions, Review of Scientific Instruments, vol. 11, Feb. 1940, pp. 47-54.
Miller, Dayton C., A 32-Element Harmonic Synthesizer, Journal of the Franklin Institute, vol. 181, 1916, pp. 51-81.
Miller, Dayton C., The Henrici Harmonic Analyzer and Devices for Extending and Facilitating Its Use, Journal of the Franklin Institute, vol. 182, 1916, pp. 285-322.
Milne, J. R., A “Duplex” Form of Harmonic Synthetiser and Its Mathematical Theory, Proceedings of the Royal Society of Edinburgh, vol. 39, 1918-19, pp. 234-242.
Montgomery, H. C., An Optical Harmonic Analyzer, Bell System Technical Journal, vol. 17, no. 3, July 1938, pp. 406-415.
Raymond, W. J., An Harmonic Synthesizer Having Components of Incommensurable Period and Any Desired Decrement, Physical Review, vol. 11, series 2, 1918, pp. 479-481.
Robertson, J. M., A Simple Harmonic Continuous Calculating Machine, London, Edinburgh and Dublin Philosophical Magazine and Journal of Science, vol. 13, 1932, pp. 413-419.
Somerville, J. M., Harmonic Synthesizer for Demonstrating and Studying Complex Wave Forms, Journal of Scientific Instruments, vol. 21, Oct. 1944, pp. 174-177.
Straiton, A. W., and G. K. Terhune, Harmonic Analysis by Photographic Method, Journal of Applied Physics, vol. 14, 1943, pp. 535-536.
Wegel, R. L., and C. R. Moore, An Electrical Frequency Analyzer, Bell System Technical Journal, vol. 3, 1924, pp. 299-323.