Fundamental limits of flash temperature measurements of asperities using infrared detectors

Y. W. Chung, K. J. Wahl

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Careful analysis of the statistics of photon emissions from transient hot spots shows that there is a practical limit to the detectability of these temperature flashes. A mathematical expression is derived which suggests that infrared techniques cannot detect temperature flashes from asperities having sizes smaller than a few microns. This calls for the development of other non-radiative techniques to measure flash temperatures from interacting asperities.

Original languageEnglish (US)
Pages (from-to)447-450
Number of pages4
JournalTribology Transactions
Volume35
Issue number3
DOIs
StatePublished - Jul 1992

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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