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Differential infrared radiometer-based thermometric instrument for non-contact temperature and friction measurements.

机译：基于差分红外辐射计的测温仪，用于非接触式温度和摩擦测量。

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摘要

The design of a novel thermometric instrument featuring thermal-emission-intensity harmonic modulation, non-contact infrared radiation and stray background suppression is described. The instrumental principle depends on thermal (blackbody) emission of Planck radiation from a heated surface. It was developed to measure small temperature rises caused by frictional heating. By using a thin-film/ceramic strip heated with AC, the instrument was adjusted to optimum positions and alignments. A low-power He-Ne heating laser was used to investigate the sensitivity and estimate a figure-of-merit (FOM) for the instrument. The FOM at the laser of point 0 mW of the non-contact thermometric instrument was 159.9 +/- 8.5 and the sensitivity for the particular thin-film/ceramic material was estimated to be 0.18--0.23 K. The instrument was applied to measure friction with a friction rig system. The friction was produced through a moving sample sliding on a stationary sample and measured at different normal loads and speeds. The tests were processed with Al-on-Al and Steel-on-part-lubricated Steel model and the correlation between normal loads, speeds and lock-in amplifier amplitude was established.
机译：描述了一种新颖的测温仪器的设计，该仪器具有热发射强度谐波调制，非接触式红外辐射和杂散背景抑制的功能。仪器原理取决于加热表面上普朗克辐射的热（黑体）发射。它被开发用来测量由摩擦加热引起的小温升。通过使用交流电加热的薄膜/陶瓷条，将仪器调整到最佳位置和对齐方式。使用低功率He-Ne加热激光器调查灵敏度并评估仪器的品质因数（FOM）。非接触式测温仪器在0 mW点的激光下的FOM为159.9 +/- 8.5，对特定薄膜/陶瓷材料的灵敏度估计为0.18--0.23 K.该仪器用于测量与摩擦钻机系统摩擦。摩擦是通过在固定样本上滑动的移动样本产生的，并在不同的法向载荷和速度下进行测量。用铝对铝和钢对部分润滑的钢模型进行了测试，并建立了正常载荷，速度和锁定放大器振幅之间的相关性。

著录项

  • 作者

    Li, Li.;

  • 作者单位

    University of Toronto (Canada).;

  • 授予单位 University of Toronto (Canada).;
  • 学科 Engineering Mechanical.
  • 学位 M.A.Sc.
  • 年度 2001
  • 页码 166 p.
  • 总页数 166
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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