近年來，肌電訊號(EMG)受到許多人的關注，其應用也非常廣泛。肌電訊號可用於評估肌肉的活動狀況，進而幫助肌肉訓練及復健等。目前市售商業用的肌電訊號量測系統大多都非常昂貴，而且在量測上也必須在特定空間才能進行，使用上極度不方便，因而有許多論文提出低成本的肌電量測系統，然而這些已經被實現的無線肌電量測系統的資料傳輸速率大多都無法支援多通道高取樣率的應用。因此本論文實現一個低成本且高取樣率的無線多通道肌電訊號量測系統，利用穿戴式肌電訊號感測器搭配微控制器及Wi-Fi傳輸模組，將量測到的肌電訊號即時地傳送到主機端作進一步處理或其他應用。此外，透過市售商業用肌電量測儀器作為標準肌電訊號，並驗證本論文系統所量測之肌電訊號；在實驗結果比較後，大部分相關係數均大於0.9，表示本文所提出的系統與市售商業用肌電量測系統所量測之肌電訊號具有中到高度相關性。

Electromyogram (EMG) signals have attracted much attention and have been applied widely. EMG signals have been used to evaluate the functional status of skeletal muscles and assist in neuromuscular training and rehabilitation. The commercial EMG acquisition systems are costly, so many researchers have provided low-cost solutions. Although the wireless acquisition systems are realized, the transmission speed is not sufficient for high-sampling and multi-channel measurement. The purpose of this work is to implement a low-cost and wireless multi-channel surface EMG acquisition system. Using wearable EMG sensors combined with a microcontroller unit and a Wi-Fi module, the measured surface EMG signal samples can be forwarded to the host immediately for further processing and additional applications. Besides, the proposed system was validated by applying the commercial wireless EMG detection systems. The results show that most of the correlation coefficients are over 0.9 that represent moderate to high relative agreement between the commercial and the proposed system.

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