Title :
A phase shift ultrasonic system for breath measurement
Author :
Huang, K.N. ; Li, Y.C. ; Young, M.S. ; Mao, C.W. ; Jen, S.L.
Author_Institution :
Dept. of Electr. Eng., Nat. Cheng Kung Univ., Tainan, Taiwan
Abstract :
In this study, an ultrasonic breath measurement system based on the phase shift reconstruction principle has been developed. The phase-shift reconstruction techniques with a programmable logic device and NI LabVIEW tool were used to promote the performance of the system. The patient´s chest wall movement caused by breathing can be detected and the wave of the breath is clear. This approach can provide a low cost, high precision and non-contact type measurement system
Keywords :
biomedical equipment; biomedical ultrasonics; pneumodynamics; ultrasonic equipment; NI LabVIEW tool; breath wave; medical instrumentation; patient´s chest wall movement; phase shift reconstruction principle; phase shift ultrasonic system; programmable logic device; ultrasonic breath measurement system; Costs; Displacement measurement; Electric variables measurement; Impedance measurement; Patient monitoring; Phase measurement; Programmable logic devices; Ultrasonic imaging; Ultrasonic variables measurement; Vibration measurement;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.803946
