A sensor for acquiring EMG and MMG signals is provided, including a substrate, an inertia sensing element received in a hole of the substrate, a circuit element disposed on the substrate, a plurality of electrical connecting members connecting the inertia sensing element with the substrate, and a sensing ring disposed on the substrate and surrounding the hole. The electrical connecting members are flexible, and the circuit element and the sensing ring are disposed on opposite sides of the substrate.一種肌能參數感測器,用以同步感測一人體之肌電圖和肌動圖訊號,其主要包括一基板、一慣性感測元件、一電路元件、複數個電性連接件以及一感測環。前述慣性感測元件設置於基板之一開孔內,電路元件設置於基板上,前述電性連接件具有可撓性,用以連接慣性感測元件以及基板。前述感測環設置於基板上並且環繞開孔,其中電路元件與感測環分別位於基板之相反側。10...基板11、12...感測環13...溝槽20...慣性感測元件21...開孔30...電性連接件
