Application of weighted least squares to calibrate a digital system for measuring the respiratory pressures

Conference Contribution

Ferreira, José Leonardo, Pereira, Nadja Carvaiho, De Oliveria Júnior, Marconi, Da Silva, João Lucas, Vasconcelos, Flávio Henrique, Tierra-Criollo, Carlos Julio, Britto, Raquel & Parreira, Veronica Franco (2008). Application of weighted least squares to calibrate a digital system for measuring the respiratory pressures. BIODEVICES 2008 - Proceedings of the 1st International Conference on Biomedical Electronics and Devices (pp. 220-223). In Scopus Cited 1 times.

Abstract

 

This article presents the results associated to calibration and evaluation of the measurement uncertainty of a digital respiratory pressures measuring system developed at the Biomedical Engineering Research & Development Laboratory (NEPEB) of the Department of Electrical Engineering - UFMG. The proposed method uses the least squares weighted regression to establish the measurement model and to evaluate the uncertainty. The standard expanded uncertainty estimated by the model was 1.4 kPa.