The utility model relates to an information acquisition device applied to a sputum clapper,The sputum clapper has a cup body and a clamping part,The cup body has a hollow part and an opening,The information acquisition device includes a pressure sensor,It is fixed on the clamping part at one end,The pressure sensor has a sensing part,The air pressure in the hollow part is sensed by the sensing part when the cup body is beating sputum,And generate an output pressure signal and a frequency signal；One display,The pressure sensor is electrically connected to receive the pressure signal and frequency signal,And the pressure signal is converted into a stroke pressure value display,And the frequency signal is converted into a beat frequency value display,This is the composition of this creation.一種應用於拍痰器之資訊擷取裝置，前述拍痰器具有一杯體及一夾持部，杯體具有一中空部與一開口，而資訊擷取裝置包括：一壓力感測器，以一端固定在夾持部，且壓力感測器具有一感測部，並以感測部感測杯體進行拍痰時於中空部內之氣體壓力，並產生一可輸出之壓力訊號與一頻率訊號；一顯示器，電性連接壓力感測器以接收壓力訊號與頻率訊號，並對壓力訊號轉換為一拍擊壓力之數值顯示，且對頻率訊號轉換為一拍擊頻率之數值顯示，藉此構成本創作。
