The development of a wearable pulse oximeter sensor and study of the calibration method.
- Author:
Xiaoling WU
1
;
Guiyan CAI
Author Information
1. Department of Information Technology, Guangzhou Medical College, Guangzhou 510182, China. WXL122@126.com
- Publication Type:Journal Article
- MeSH:
Calibration;
standards;
Equipment Design;
Humans;
Oximetry;
instrumentation;
Oxygen;
metabolism;
Oxyhemoglobins;
analysis
- From:
Journal of Biomedical Engineering
2009;26(4):731-738
- CountryChina
- Language:Chinese
-
Abstract:
The paper first analyses the principles of measurement of the two-wave oximeter and their limitations in technology. We propose to filter off motion interference from pulse oximeter signal using an algorithm based on the Beer-Lambert law that requires a three-wave probe (660 nm, 850 nm, and 940 nm). Based on the new algorithm, this paper describes the design principle of the circuitry and the software flowchart. Also, we study the calibration method of the pulse oximeter sensor and discuss the results in this paper.
