A LabVIEW based measure system for pulse wave transit time

作者：Zhang J A^*; Wei P F; Li Y

来源：5th Int Conference on Information Technol and Applications in Biomedicine in Conjunction with the 2nd Int Symposium and Summer School on Biomedical and Health Engineering, 2008-05-30 to 2008-05-31.

• pulse wave transit time
• ECG
• PPG
• LabVIEW

In this paper, we design a system that can measure PWTT by monitoring ECG and pulse wave continuously. The system includes analog signal sampling in PCB, signal display and data processing in computer. We measure pulse wave by the photo-plethysmograph (PPG) device in finger which includes an infrared LED transmitting light, photodiode in OPT101 as detector, amplifler and filters. We measure ECG by the sensor on limb. We design amplifler, 0.01Hz high pass filter, 75Hz low pass filter, and 50Hz notch filter. After filtering and amplilication, ECG and PPG are sampled by MCU and then the data are transmitted to computer. LabVIEW is used to receive, display and process these data, and finally figure out the PWTT. Based on PWTT value, we coarsely calculate the SBP.

• 出版日期2008
• 单位中国科学院深圳先进技术研究院