Microwave On-Line Measurements on Conveyed Products Application to Paper and Wood Industries

Autor:	Patrice Berthaud, A. Lemaitre, J. F. Portala, J.Ch. Bolomey, G. Cottard
Rok vydání:	1994
Předmět:	Polynomial Fabrication Transformation (function) Materials science business.industry Process (computing) Calibration Phase (waves) Composite material Process engineering business Microwave Physical quantity
Zdroj:	MRS Proceedings. 347
ISSN:	1946-4274 0272-9172
Popis:	Microwave multiport sensors have been shown to provide some unique capabilities to achieve real-time testing of products conveyed at high speed. In many applications, quantitative measurements of physical quantities such as moisture content, density, etc… are required, either to guarantee reliable production or to optimally control a fabrication/transformation process. In this paper, different ways of extracting such physical quantities from microwave measurements performed by multiport sensors are presented. Model approaches are used, based on polynomial expansions of the physical quantities to be measured as a function of the microwave amplitude and phase data. Calibration procedures have been investigated for both paper and wood material samples. Comparisons between in-situ, microwave and conventional, measurements are analysed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2510dd1b2a8cbe2419fe53ba673c239f https://doi.org/10.1557/proc-347-161 Zobrazit plný text záznamu Full text from SpringerLink