Abstract

Info

Title:: An oxygen concentration measurement method based on paramagnetic properties

Author(s):: YE Jilun1; LI Chenyang1; ZHENG Shengkun1; DU Fengling1; SONG Xuedong1; ZHANG Xu2; 1. Department of Biomedical Engineering, School of Medicine, Shenzhen University, Shenzhen 518060, China; 2. Shenzhen Key Lab for Biomedical Engineering, Guangdong Key Lab for Biomedical Signal Measurements and Ultrasound Imaging, Shenzhen 518060, China

Keywords:: ; oxygen; paramagnetic properties; magnetic pressure type; magnetic mechanical type; thermomagnetic convection type; innovative magnetic pressure sensitive system

Abstract:: Three commonly used oxygen concentration detection systems based on paramagnetic properties at home and abroad are introduced in this paper and an innovative magnetic pressure measurement system based on paramagnetic method is further proposed. The special physical quantities of oxygen, strong paramagnetic properties, detected by three kinds of detection systems are studied. The detected measurements, such as thermal magnetic convection, pressure difference and density gradient, are used to calculate the oxygen content in mixed gas. The information about the three kinds of analyzers, namely thermomagnetic convection type, magnetic mechanical type and magnetic pressure type, are also introduced. We compare and analyze their principle, internal structures and working mechanisms to made readers understand the three kinds of analyzers more clearly and thoroughly, so that they can choose the appropriate analyzer to detect the oxygen concentration. Finally, the composition, structure, working principle and waveform display of the proposed innovative measurement device are briefly discussed.