Abstract: A swallowing movement measuring device measures an examinee's swallowing movement. The device measures a movement of the examinee's larynx when the examinee swallows a food bolus. This device has a capacitive sensor to be brought into contact with a body skin of the examinee's laryngeal part, and a measuring unit that measures a change of the capacitive sensor in capacitance. This capacitive sensor includes a sensor body comprising sheet-like dielectric layer, a first electrode layer and a second electrode layer. The first and the second electrode layers are formed on a top surface and a bottom surface of the dielectric layer respectively, and are at least partially opposed to each other across the dielectric layer. The partially opposed portions of the electrode layers constitute a detection portion. The sensor body is reversibly deformable to change areas of the top and bottom surfaces of the dielectric layer.

Abstract: A capacitive sensor includes a sensor sheet having a central electrode layer and a measuring instrument. A first dielectric layer is laminated on the upper surface of the central electrode layer. A second dielectric layer is laminated on the lower surface of the central electrode layer. A first outer electrode layer is formed on the surface of the first dielectric layer. A second outer electrode layer is formed on the surface of the second dielectric layer. The central electrode layer and the first outer electrode layer face each other at a first detection portion. The central electrode layer and the second outer electrode layer face each other at a second detection portion. Capacitances of the detection portions change with deformation. The state of deformation of the sensor sheet is measured on the basis of the total capacitance by adding the capacitances of the first detection portion and the second detection portion.

Abstract: Provided is a capacitive sensor in which fluctuation in the measured value of capacitance caused by the use environment is small.

Abstract: An objective of the present invention is to provide a sensor device which is used by being attached to a lifeform, and which is capable of easily and reliably carrying out tracking of a deformation of the surface of the lifeform.