PROBLEM TO BE SOLVED: To more efficiently transmit a pressure change by displacement of a body surface of a subject by respiration to a piezoelectric transducer.SOLUTION: A sensor device 10 mounted on a body surface of a subject for detecting displacement of the body surface accompanying respiration of the subject includes: a contact piece 12 having a contact surface 14 that is brought into contact with the body surface when the sensor device 10 is mounted on the body surface displacement-signal conversion means 16 connected to the contact piece 12 for converting the displacement of the body surface to an electric signal and output means 11 for outputting the electric signal to an external device. The sensor device 10 is a device that is held between the body surface of the subject and the upper edge portion of bottoms worn by the subject. The contact piece 12 is disposed on one surface of a housing for housing the displacement-signal conversion means 16 and the output means 11, and a fastening member 18 that can be attached to the upper edge portion of the bottoms is disposed on the other surface of the housing.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】呼吸による被検者の体表面の変位による圧力変化をより効率的に圧電振動子へ伝達できるようにすること。【解決手段】被検者の体表面に装着されて被検者の呼吸に伴う体表面の変位を検出するセンサ装置10は、センサ装置10が体表面に装着される際に体表面に接触する接触面14を有する接触子12と、接触子12に連結され体表面の変位を電気信号に変換する変位-信号変換手段16と、電気信号を外部装置へ出力する出力手段11とを含み、センサ装置10が被検者の体表面と被検者の着衣したボトムズの上縁部分との間に挟持される装置であり、変位-信号変換手段16と出力手段11とを収容するハウジングの一方の面に接触子12が配置され、ハウジングの他方の面にボトムズの上縁部分に取り付け可能な留め部材18が設けられている。【選択図】図2
