Influence of Field of View of Thermal Imagers and Angle of View on Temperature Measurements by Infrared Thermovision

Autor:	Pablo Rodrigues Muniz, S. P. N. Cani, Robson da Silva Magalhães
Rok vydání:	2014
Předmět:	Engineering Observational error business.industry Infrared Field of view Temperature measurement Predictive maintenance law.invention Lens (optics) Optics law Thermography Electrical and Electronic Engineering business Error detection and correction Instrumentation Remote sensing
Zdroj:	IEEE Sensors Journal. 14:729-733
ISSN:	1558-1748 1530-437X
DOI:	10.1109/jsen.2013.2287003
Popis:	Temperature measurement by infrared thermography is a powerful technique for predictive maintenance. To make accurate diagnoses, errors associated with temperature measurement results should be minimized because the diagnosis is obtained by applying temperature difference criteria in consecutive measurements or in similar equipment. Temperature measurement by infrared thermography is susceptible to errors caused by many things. We study and assess the effectiveness obtained in use of experimental models for error correction in temperature measurement by thermal imagers due to the influence of the field of view of the imager's lens, combined with varying viewing angles between the analyzed object and the imager. The results indicate that these factors can introduce errors that compromise the diagnosis. Experimental models based on artificial neural network and on regression were developed to correct such errors.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::80a49b5e96927427783d703934d4882d https://doi.org/10.1109/jsen.2013.2287003 Zobrazit plný text záznamu