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生物医学信号以各种物理现象反应着生命的存在及其规律,在生物医学工程上,人们已经掌握了它的部分规律,并利用这些规律造福于人类。但是,对生物信号的检测,目前国内外大部分仍停留在用描笔式记录法描记。研究人员或医务人员需从纸上测量其高度、宽度、形状,经换算才能得到欲测参数。这种测量法精度差,效率低。近几年,随着计算机技术的迅速发展,国际上已出现少量智能分析仪,但功能专一,价格昂贵。国内也有部分研究单位在研究生物信号智能分析,但检测部分指标普遍不高,有不少单位使用进口生理记录仪作前置放大器,这样性能提高了,但价格昂贵,不利于推广应用。因此,生物信号检测由手工
Biomedical signals reflect the existence and laws of life with various physical phenomena. In biomedical engineering, people have mastered some of its laws and used the laws to benefit human beings. However, the detection of biological signals, at present, most of the rest of the world still remain in the use of pen-based recording method. Researchers or medical staff to measure the height from the paper, width, shape, converted to get the parameters to be measured. This measurement accuracy is poor, inefficient. In recent years, with the rapid development of computer technology, there have been a few intelligent analyzers in the world, but the functions are special and expensive. There are also some domestic research institutions in the study of biological signal intelligence analysis, but the detection of some indicators are generally not high, many units use imported physiological recorder as a preamplifier, so the performance increased, but expensive, is not conducive to the promotion and application. Therefore, bio-signal detection by hand