摘要
根据呼吸感应体积描记技术的调频特性,结合等精度测量原理,提出了数宇呼吸感应体积描记设计。相对于模拟幅度检测,该设计具有测量精度高,抗干扰能力强等优点。但系统功耗较高是该方法的一个不足,在后续应用研究中应重点解决.
A new type of respiratory inductive plethysmography （RIP） has keen designed based on digital demodulation technique with equal relative error. Compared with former amplitude demodulation, digital modulation RiP can obtain more accurate measurements of respiration and reduce the signal interference and distortion. But the system＇s power consumption is still a problem which needs to be solved in the future design.
出处
《中国医疗器械杂志》
CAS
2007年第3期179-181,共3页
Chinese Journal of Medical Instrumentation
关键词
呼吸感应体积描记
调频
调幅
数字解调
同步
respiratory inductive plethysmography, frequency-modulation, amplitude-modulation, digital demodulation, synchronize
