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Potentiel des capteurs de gradient pour mesurer les flux thermiques, les températures, les contraintes tangentielles et les caractéristiques thermophysiques des matériaux.

Capabilities of gradient sensors in the measurement of heat fluxes, temperatures, tangential stresses, and thermophysical characteristics of materials.

Auteurs : SAPOZHNIKOV S. Z., MITIAKOV V. Yu, MITIAKOV A. V.

Type d'article : Article

Résumé

Some gradient heat flux sensors are described. The capabilities of using them directly as heat flux sensors (in thermometry problems), as resistance thermometers, and as tangential stress sensors are demonstrated. The measurement of tangential stresses is based on the Reynolds analogy: a sensor is complemented by a plane heater placed between the sensor and the base surface. The calibration is made on a device where the Couette flow is realized. In this paper, it is shown how methods without temperature measurement for determining the radiation properties of surfaces and thermophysical characteristics of solid bodies can be constructed on the basis of gradient heat flux sensors. For the first time, a method for determining the temperature conductivity of materials at arbitrary boundary conditions is proposed.

Détails

  • Titre original : Capabilities of gradient sensors in the measurement of heat fluxes, temperatures, tangential stresses, and thermophysical characteristics of materials.
  • Identifiant de la fiche : 2004-1595
  • Langues : Anglais
  • Source : J. Eng. Thermophys. - vol. 12 - n. 1
  • Date d'édition : 2003
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

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