高速引張試験用荷重計の試作

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タイトル別名
  • Load Cell for High-Speed Tensile Testing of Yarns
  • コウソク ヒッパリ シケンヨウ カジュウケイ ノ シサク

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A high-frequency, responsive- force gauge is nedeed to observe the actual stress-strain curve of a filament yarn in an extreme short loading time ranging in ms during high-speed testing.<BR>A standstill indication must be formed with the D. C out-put brom the force-gauge, fecause dead loads are charged to calibrate the gauge with weights.<BR>The gauge of a yarn-measuring instrument must have temperature stability and zero-level stability.<BR>We have designed and built a high frequency responsive force gauge with which to investigate the behavior of a filament yarn. The gauge is based on the principle that the frequency of a zero temperature coefficient (A.T cut) quartz crystal resonator of radio frequency shibts under external pressure.<BR>The characteristics of the quartz crystal resonator borce gauge show that the frequency response is from D.C to about 6-7 KHz and stable.<BR>Further work is in progress to improve the mechanism of the force gauge so as to obtain a higher response.

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