Study on Automatic Control of Sliver Thickness by High-Frequency Small Capacitance MesuringPrinciple

DOI

Bibliographic Information

Other Title
  • 高周波微小容量測定装置を検出部とするスライバ太さ自動制御の基礎的な研究
  • Part 1 : Constitution of the Automatic Controller and Properties of the Detecting Means
  • (第1報) 制御装置の構成と検出部特性

Abstract

The automatic controller under this study is bult of the following apparatus:<BR>Process- Intersecting gill box.<BR>Detecting Means- High-frequency small capacitance measuring equipment. (Uster evenness tester)<BR>Final control element- Electric-oil pressure power actor. Positive, infinitely variable speed chain gear box.<BR>Control means- PID controller<BR>The major causes for variations in the static properties of the detecting means are:<BR>(1) Make-up of the measuring condenser.<BR>(2) Amplification degree of the measuring equipment.<BR>(3) Dielectric constant of the fibers in a measured sliver.<BR>(4) Moisture content of the fibers in the sliver measured.<BR>(5) Deviation of the adjusted point.<BR>The adjusted point is a point where the two frequencies of the oscillators in the adapter coincide when nothing is contained in the measuring condenser. This point shifts by variations in the temperature and relative humidity of the room.<BR>The time constant of the detecting means is about 0.20 sec in normal and 1.6 sec in inert.

Journal

Details 詳細情報について

  • CRID
    1390001205325107200
  • NII Article ID
    130001597442
  • DOI
    10.4188/transjtmsj1948.17.9_661
  • ISSN
    18838715
  • Text Lang
    ja
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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