A device of liquid flow measurement has a drip infusion formed on a top of the device. The drip infusion has a microphone. The present invention may be serial connected in a small flow during measurement. The present invention may be used in an infusion system of a medical application and is serial connected in the infusion system. In a process of the infusion, medical liquid flows into the drip infusion. The microphone receives an amount of the medical liquid drops and transfers a signal to a computer server of a hospital or a build-in micro-chip for calculating. The present invention may calculate a flow rate of the infusion and a stop or a backflow of the infusion, which is an automatic monitoring infusion system and avoid accident during infusion.一種液體流量測量裝置,其頂部設有形如滴斗的滴液管,在滴管本體的周圍設有拾音器;當本發明用於微小流量測量管路時,可串接入小流量管路;當本發明使用於輸液系統時,是串接在藥液的輸液管路中,在輸液過程中,藥液會進入滴管本體內,拾音器感測聲音的方式可偵測藥液滴落數目,再將此訊息傳遞至醫院的後台或自帶的單晶片進行計算,可計算出輸液的流速、流量以及輸液是否停止或逆流,達到自動監控輸液過程的效果,避免意外的發生。10‧‧‧滴管本體11‧‧‧上存液管111‧‧‧上安裝座12‧‧‧下存液管121‧‧‧下安裝座14‧‧‧流量調整槽15‧‧‧帶孔板151‧‧‧流量調整孔16‧‧‧磁鐵17‧‧‧感應芯棒171‧‧‧尖錐部18‧‧‧滴液管181‧‧‧尖端182‧‧‧滴嘴19‧‧‧橡皮塊21‧‧‧線圈管22‧‧‧感應線圈23‧‧‧電磁感應管30‧‧‧拾音器40‧‧‧數據傳輸模組41‧‧‧無線傳輸單元411‧‧‧發送天線50‧‧‧外蓋51‧‧‧外蓋穿孔
