Effect of Local Temperature on the Detecting for Pulse Wave of Local Blood Volume

International Journal Bioautomation

Yimin Yang¹  Lin Yang¹  Xuwen Li¹  Song Zhang¹  Tingting Yan² 

[1] ;College of Life Science and Bioengineering, Beijing University of Technology, PingLeYuan 100, Beijing, China 100124;

关键词: Photoplethysmography;    Blood volume index;    Temperature;   

DOI  :  

来源: DOAJ

【 摘 要 】

[Objective] Temperature of a subject's external body parts is an interference condition in pulse wave of local blood volume measurement. It is necessary to rule it out. By changing the influence factors, an experiment to research the effect of temperature of subjected part in pulse wave of local blood volume measurement was carried out. [Methods] When the 32 experimenters' left middle finger temperature fall below to 20°C, pulse wave of local blood volume would be recorded detected in real-time until the temperature returned to the measured values before the experiment [Results] While the temperature of subjected part ranged from 26°C to 31°C, the parameters of K', K1', K2' and the amplitude of pulse wave remain basically unchanged. [Conclusion] As a result of the research data, it is stipulated that the pulse wave of local blood volume can be measured only if the finger temperature is in the range of 26-31°C.

【 授权许可】

Unknown