A new method for measuring linearity of physiological instrumentation.
- Author:
Bin GAO
1
;
Longcong CHEN
;
Guohu HU
;
Yangming JIANG
Author Information
1. Department of Biomedicine Engineering, Chongqing University of Medical Sciences, Chongqing 400016, China.
- Publication Type:Journal Article
- MeSH:
Diagnosis, Computer-Assisted;
methods;
Humans;
Monitoring, Physiologic;
instrumentation;
Signal Processing, Computer-Assisted
- From:
Journal of Biomedical Engineering
2005;22(6):1264-1270
- CountryChina
- Language:Chinese
-
Abstract:
Based on theoretic analysis, a new method for measuring linearity of physiological instrument and its inner unit circuits is provided. In this method, the sawtooth wave signal, which includes a base wave and its odd-even times harmonic waves, is used to act as input signal, then the linearity of physiological instrument and its inner unit circuits can be measured by analyzing the shape and frequency property of the output signal. The results of experiment show this method is quick and convenient for measuring the linearity of physiological instrument and its inner unit circuits.
