PROBLEM TO BE SOLVED: To provide a cardiopulmonary function measuring device and a method for the same, which can easily suppress an error in amplitude of signal intensity to be generated before and after an operation of emitting charges.SOLUTION: The device performs the following operations of: determining a range of a charge emission portion as a signal including a portion for emitting charges accumulated in a piezoelectric film sensor, out of first signals detected from the piezoelectric film sensor with which a subject is in contact generating an interpolation signal for continuing a signal immediately before the charge emission portion and a signal immediately before the charge emission portion out of the first signals, without reflecting a change in signal intensity in the charge emission portion replacing the signal of the charge emission portion with the interpolation signal generating a second signal in which the signal immediately before the charge emission portion, the interpolation signal and the signal immediately after the charge emission portion continue and measuring the cardiopulmonary function of the subject on the basis of the second signal.COPYRIGHT: (C)2012,JPO&INPIT【課題】電荷を放出する動作の前後で発生する信号強度の振幅の誤りを、容易に抑制することが可能な、心肺機能測定装置及び心肺機能測定方法を提供する。【解決手段】被測定者が接触する圧電フィルムセンサから検出した第一信号のうち、圧電フィルムセンサに蓄積した電荷を放出する部分を含む信号である電荷放出部の範囲を判定し、第一信号のうち電荷放出部の直前の信号と電荷放出部の直後の信号とを、電荷放出部における信号強度の変化を反映せずに連続させる補間信号を生成し、電荷放出部の信号を補間信号に置き換えて、電荷放出部の直前の信号と、補間信号と、電荷放出部の直後の信号とを連続させた第二信号を生成し、第二信号に基づいて被測定者の心肺機能を測定する。【選択図】図3