【摘要】 基于生物反馈技术研制一种能采集 4种生理参数的多导生物反馈仪 .将心理生理信号 (肌电、皮电、呼吸、脉搏 )进行放大和滤波 ,消除工频干扰和噪声 ,采用无线传输方式送入计算机进行处理 ,并在计算机上实时显示生理图谱 ,作为一种反馈信息 .介绍了该多导生物反馈仪的基本构成及其特点 ,并对肌电生物信号的特点和提取方法进行了分析 .该多导生物反馈仪的初步实际应用结果表明了其设计的可靠性和实用性 .更多还原

【Abstract】 A polygraph biofeedback instrument that can acquire four channel psychophysiological signals is developed based on the technology of biofeedback. The acquired signals (electromyogram, galvanic skin response, respiration, pulse) are transmitted into the computer after magnification and filtration. The computer then processes the data. As a kind of feedback information, the signal charts are displayed on the screen. The basic construction of the polygraph biofeedback instrument and its features are introduced. An analysis of the electromyogram features and its methods of extraction are also given. Its results in actual application show that the polygraph is practical and reliable.更多还原