BIBLIOS

Tipo
Artigos em Conferência

Tipo de Documento
Resumo

Título
Evolution! 20 years of Platinum Portuguese Thin Film Sensors

Participantes na publicação
Luís C. Nobre (Author)
Carla S. Queirós (Author)
Dep. Química e Bioquímica
CQE
Salomé I. Vieira (Author)
Dep. Química e Bioquímica
Fernando J. Santos (Author)
Dep. Química e Bioquímica
CQE
Maria J. Lourenço (Author)
Dep. Química e Bioquímica
CQE
João M. Serra (Author)
Dep. Engenharia Geográfica, Geofísica e Energia
IDL
CQE
Carlos Nieto de Castro (Author)
Dep. Química e Bioquímica
CQE

Resumo
The work carried out in Portugal at the Faculdade de Ciências da Universidade de Lisboa in the last 20 years reflects an important evolution, since the first prototypes of Platinum thin-film sensors for the measurement of thermal conductivity at very high temperatures were produced by PVD [1,2]. At the same time these sensors for measurement of thermal conductivity are also very accurate thermometers. According to the requirements of the measurement, temperature range, accuracy and with a few simple changes in their construction these versatile sensors are easily adapted to the measurement of molten salts, molten metals, gases, gas mixtures, pure liquids, ionic liquids, among others. The need for measurements performed in an industrial environment led to the construction of a portable measurement bridge which allows the determination of the actual system property. It is worthy to point out that the sensors and the measuring instruments developed can achieve less uncertain thermal conductivity data and temperature than all commercial instruments available in a temperature range between -20 and 1000ºC, for variable sample volumes between 20 and 100 cm3. We present data from multiple sensors calibration with ascending and descending cycles in temperature, thermal conductivity measurements with various fluids, describing the evolutionary methodology according to the needs arising from matching scientific rigor, sample volume, reactivity, temperature range and “in situ” measurements.

Editor
Professor Yuji Nagasaka


Instituição
FACULDADE DE CIÊNCIAS DA UNIVERSIDADE DE LISBOA

Evento
ATPC 2016, 2-6 October, 2016

Identificadores da Publicação

Local
Yokohama, Japão

Organizadores
Keio University, Japan

Editora
Keio University, Japan

Coleção
Abstract Book



Keywords
Thin-film sensors Thermal Conductivity High temperature