特殊矩形波を利用したサーボアナライザ

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タイトル別名
  • A Servo-Analyzer Utilizing Special Rectangular Waves
  • トクシュ クケイハ オ リヨウ シタ サーボアナライザ

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This paper describes a servo analyzer which is based upon the principle of correlation between the output from a measured system and the special rectangular waves. These special waves are formed by cutting away the width of π/6 radians from both sides of the normal rectangular waves as shown in Fig. 2 (b), (c).<BR>The operating principle of this apparatus is as follows:<BR>A measured system is given the sinusoidal input which is generated by signal generator driven by rate servo. The output from a measured system is multiplied by two special rectangular waves out of phase by π/2 to each other by means of a simple multiplying switch (shown in Fig. 6) coupled to the output shaft of rate servo. These two multiplied outputs are integrated respectively during adequate period. These integrated signals are given to XY recorder. Thus the Nyquist diagram is automatically plotted.<BR>The advantages of this method are that the measurement over the frequency range 1-100 cps is possible because of the simple construction of multiplying switch, and that the accuracy of measurement is considerably good even in case of measured systems containing nonlinearity.

収録刊行物

  • 自動制御

    自動制御 7 (6), 319-325, 1960

    公益社団法人 計測自動制御学会

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