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An Evaluation Method of Electromagnetic Interference on Bio-Sensor Used for Wearable Robot Control
IEEE Transactions on Electromagnetic Compatibility ( IF 2.1 ) Pub Date : 2020-02-01 , DOI: 10.1109/temc.2019.2896974
Wei Liao , Keinosuke Nagai , Jianqing Wang

Applications of wearable bio-sensors are rapidly increasing for health care and medical purposes, but various sinusoidal and impulse electromagnetic interferences can have a significant influence on their performance. In this paper, we focus on the electromagnetic interference evaluation of bio-sensors used for control of wearable robots, such as a myoelectric artificial hand. We proposed a method for measuring the common-mode voltage between the human body with a bio-sensor and the ground plane, which is generated by external sinusoidal or impulse electromagnetic fields. First, using sinusoidal electromagnetic interference, we clarified that the mechanism of generation of interference voltage in wearable bio-sensor is due to unbalance of contact resistances between pair of bio-signal detection electrodes. Next, as an example of impulse electromagnetic interference, we evaluated the interference voltage generated in the bio-sensor by combining the proposed measurement method with electric circuit simulation under the IEC-prescribed indirect electrostatic discharge test environment. This method provides a powerful means for evaluating the interference characteristics in the wearable robot design stage.

中文翻译:

一种用于可穿戴机器人控制的生物传感器电磁干扰评估方法

可穿戴生物传感器在医疗保健和医疗方面的应用正在迅速增加,但各种正弦和脉冲电磁干扰会对它们的性能产生重大影响。在本文中,我们专注于用于控制可穿戴机器人(如肌电假手)的生物传感器的电磁干扰评估。我们提出了一种使用生物传感器测量人体与接地平面之间的共模电压的方法,该电压由外部正弦或脉冲电磁场​​产生。首先,我们利用正弦电磁干扰阐明了可穿戴生物传感器中干扰电压的产生机制是由于一对生物信号检测电极之间的接触电阻不平衡。下一个,作为脉冲电磁干扰的一个例子,我们在IEC规定的间接静电放电测试环境下,通过将所提出的测量方法与电路仿真相结合,评估了生物传感器中产生的干扰电压。该方法为可穿戴机器人设计阶段的干扰特性评估提供了有力的手段。
更新日期:2020-02-01
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