Optical Telemetering of Temperature Information in Rotating Spindle (2nd Report)

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  • 回転軸における温度情報の光テレメータリングに関する研究 (第2報)
  • 回転軸における温度情報の光テレメータリングに関する研究 (第2報) : 計測可能時間の延長・熱電対高温接点が主軸に導通している場合の計測
  • カイテンジク ニ オケル オンド ジョウホウ ノ ヒカリ テレメータリング ニ
  • Extension of Measuring Period and Measurement in the Case with Thermocouple Hot Junction Short-circuited to Spindle
  • 計測可能時間の延長・熱電対高温接点が主軸に導通している場合の計測

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Abstract

This paper deals with an improvement of the telemetering system for practical use. Large capacity rechargeable battery and power supply regulator are adopted and 22.5 hours continuous measurement is confirmed. Output of the telemetering system with thermocouple hot junction short-circuited to the spindle is fluctuated accompanied by spindle rotation. For this fluctuation the following three procedures are applied and the measurement accuracy of the telemetering system with error less than 0.1°C is confirmed : low-pass filtering, using averaged data of temperature and shortening the length between two contact points of thermocouple hot-junction contacting with the spindle. Also the inner-surface temperature of inner-race of rolling bearing is measured.

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