Abstract A wearable sensor was fabricated to provide simultaneous electromyography (EMG) and force myography (FMG) information, from the same muscle location for controlling multi-functional hand prosthesis. The typical mechanical arrangement of the sensor constitutes silver electrodes and a force-sensitive resistor embedded inside the sensor chassis for detecting the electrical and mechanical activity of muscles. The sensor incorporates specific conditioning units for producing quantifiable EMG and FMG outputs from electrodes and force-sensitive resistor. The sensor exhibited excellent sensitivity and repeatability characteristics in recording force signals. The dry electrodes used in the sensor showed a comparable electrode-skin impedance with conventional Ag-AgCl electrodes. The EMG signals obtained with the sensor for ten subjects showed a good correlation and similar signal-to-noise ratio to signals with a traditional EMG sensor. Further, the nature of the measured EMG and FMG signals for the subjects by the sensor were analyzed by determining features such as signal stability and response time. The simultaneously recorded EMG-FMG signals from the sensor for different muscular contractions can be fused to generate a more reliable control for dexterous operation of hand prosthesis.

中文翻译：

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多模态传感器测量肌肉的同步电活动和机械活动以控制手部假肢

摘要 制造了一种可穿戴传感器，从同一肌肉位置提供同步肌电图 (EMG) 和肌力图 (FMG) 信息，用于控制多功能手部假肢。传感器的典型机械布置由银电极和嵌入传感器底盘内的力敏电阻组成，用于检测肌肉的电气和机械活动。该传感器包含特定的调节单元，用于从电极和力敏电阻器产生可量化的 EMG 和 FMG 输出。该传感器在记录力信号方面表现出优异的灵敏度和可重复性。传感器中使用的干电极显示出与传统 Ag-AgCl 电极相当的电极 - 皮肤阻抗。用传感器获得的 10 名受试者的 EMG 信号与传统 EMG 传感器的信号显示出良好的相关性和相似的信噪比。此外，通过确定信号稳定性和响应时间等特征，分析了传感器为受试者测量的 EMG 和 FMG 信号的性质。来自传感器的同时记录的不同肌肉收缩的 EMG-FMG 信号可以融合，为假手的灵巧操作生成更可靠的控制。