Journal of The Society of Instrument and Control Engineers
Online ISSN : 1883-8170
Print ISSN : 0453-4662
ISSN-L : 0453-4662
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Volume 6, Issue 5
Displaying 1-8 of 8 articles from this issue
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  • Servo-vibrograph of Long Natural Period
    Consideration on the Various Basic Constructions
    Kozo MATSUSHIMA
    1967 Volume 6 Issue 5 Pages 308-319
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.308
    JOURNAL FREE ACCESS
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    When a pendulum type vibrograph is used in measuring vibration, the longest measurable period is determined by the natural period of the pendulum. Therefore when the measured vibration is supposed to have a long period component, the natural period of the pendulum must be made long accordingly. It is not possible, however, to make the natural period of the pendulum itself unlimitedly long because the size becomes prohibitive and the measuring accuracy degenerates.
    The author proposes the “servo-vibrograph” in which the pendulum itself is comperatively small and with a short natural period but the apparent natural period of the vibrograph is made long by the servomechanism incorporated with the pendulum. This paper presents considerations on various conceivable constructions of the servo-vibrograph which can achieve the above objective, i. e., the elongation of the natural period. The torsional servo-vibrograph designed and built by the author is described in relation to the above considerations, and with the experimental results which are compared with the theoretical calculations pointing out some of the salient natures of its design. The built servo-vibrograph employs a pendulum whose natural period is 1 second. Experimental data were taken when the natural period was lengthened 2, 3 and 7 times longer by the servomechanism. Comparison is made between this servo-vibrograph and other conventional types of vibrographs.
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1967 Volume 6 Issue 5 Pages 320-326
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.320
    JOURNAL FREE ACCESS
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  • [title in Japanese]
    [in Japanese], [in Japanese]
    1967 Volume 6 Issue 5 Pages 327-336
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.327
    JOURNAL FREE ACCESS
    Download PDF (1229K)
  • [title in Japanese]
    [in Japanese]
    1967 Volume 6 Issue 5 Pages 337-346
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.337
    JOURNAL FREE ACCESS
    Download PDF (3224K)
  • [title in Japanese]
    [in Japanese]
    1967 Volume 6 Issue 5 Pages 347-352
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.347
    JOURNAL FREE ACCESS
    Download PDF (1019K)
  • [title in Japanese]
    [in Japanese]
    1967 Volume 6 Issue 5 Pages 353-356
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.353
    JOURNAL FREE ACCESS
    Download PDF (1097K)
  • [title in Japanese]
    [in Japanese], [in Japanese], [in Japanese], [in Japanese]
    1967 Volume 6 Issue 5 Pages 357-359
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.357
    JOURNAL FREE ACCESS
    Download PDF (714K)
  • [title in Japanese]
    [in Japanese]
    1967 Volume 6 Issue 5 Pages 365-367
    Published: May 10, 1967
    Released on J-STAGE: November 26, 2009
    DOIhttps://doi.org/10.11499/sicejl1962.6.365
    JOURNAL FREE ACCESS
    Download PDF (724K)
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