An electrocardio recording system including a sensing device, a differential amplifier circuit, a filter circuit, a fast transferring circuit, an analog-to-digital transducer, and a communication circuit. The sensing device comprising two metal electrodes for receiving a bioelectrical signal the filter circuit filtering a noise signal off the bioelectrical signal to obtain a bio-feature signal the fast transferring circuit analyzing the bioelectrical signal to output a power frequency curve the analog-to-digital amplifier circuit receiving the power frequency curve, and storing the power frequency curve into a database through the communication circuit to monitor the bio-feature signal.一種心電感測系統包含感測裝置、差動放大電路、濾波電路、快速轉換電路、類比數位轉換介面、以及通訊電路。感測裝置包含二金屬電極以接收生物電訊號;差動放大電路以放大生物電訊號;濾波電路以從生物電訊號中濾除雜訊而獲得生理特徵訊號;快速轉換電路分析生理特徵訊號並輸出功率頻譜曲線;類比數位轉換介面接收功率頻譜曲線,並使功率頻譜曲線經由通訊電路儲存於資料庫中以監控生理特徵訊號。10‧‧‧感測裝置100‧‧‧心電感測系統11‧‧‧金屬電極12‧‧‧電源電路20‧‧‧差動放大電路21‧‧‧儀表放大器22‧‧‧補償電路30‧‧‧濾波電路31‧‧‧帶通濾波器32‧‧‧高通濾波器33‧‧‧低通濾波器40‧‧‧快速轉換電路50‧‧‧電腦系統51‧‧‧類比數位轉換介面60‧‧‧通訊電路
