Abstract: A sensor body including: a plate-like flexible intermediate layer that is stretchable in a surface direction; a first sensor element laminated on one surface of the intermediate layer; and a second sensor element laminated on the other surface of the intermediate layer facing the one surface. The first sensor element is configured to be capable of detecting a length corresponding to a length of a first reference line segment on the one surface of the intermediate layer, and the second sensor element is configured to be capable of detecting a length corresponding to a length of a second reference line segment that is on the other surface of the intermediate layer and parallel to the first reference line segment.

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: The invention provides a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of combined chlorine or the stabilizer in the water system is controlled by generating free residual chlorine in the water system, and a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of the oxidant-based bactericidal/algicidal agent added is controlled so that the concentration of total residual chlorine in the water system falls within a predetermined range, and the amount of combined chlorine or the stabilizer is controlled so that the concentration of free residual chlorine in the water system falls within a predetermined range.

Abstract: Provided is a capacitive sensor sheet for use in measuring at least one of an amount of strain due to elastic deformation and a distribution of strain due to elastic deformation, and the capacitive sensor sheet comprises: a dielectric layer; a top electrode layer laminated on the obverse surface of the dielectric layer; and a bottom electrode layer laminated on the reverse surface of the dielectric layer, wherein the dielectric layer is composed of an elastomer composition containing a urethane elastomer, and each of the top electrode layer and the bottom electrode layer is composed of an electroconductive composition containing carbon nanotubes.

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: A sensor device includes a sensor element, a converter, and an output unit. The sensor element includes a sheet-like dielectric layer including an elastomer composition and a top electrode layer and a bottom electrode layer each including an electroconductive composition containing carbon nanotubes. The top and the bottom 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 at least partially opposed portions of the top and the bottom electrode layers constitute a detection portion, and the dielectric layer reversibly deforms to change an area of a main surface of the dielectric layer. The converter electrically is connected to the sensor element and converts capacitance at the detection portion that varies in accordance with the deformation of the dielectric layer to electric characteristics.

Abstract: Provided is a stretchable electrode which has excellent flexibility, stretchability and electrical conductivity and is capable of suppressing increase of the electric resistance in being elongated and the occurrence of variation in the electric resistance during repeated stretching and contracting. The stretchable electrode of the present invention comprises a base formed of an elastomer composition and an electrode main body integrated with the base, wherein the electrode main body is formed using multi-walled carbon nanotubes having a fiber length of 50 ?m or more.

Abstract: The present invention relates to a capacitive sensor sheet for measuring the amount of deformation of a measuring object with high sensitivity and high accuracy.

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

Abstract: A capacitance-type sensor sheet used for measuring an amount of stretch deformation and strain and/or distribution of stretch deformation and strain may include a dielectric layer made of an elastomer, an obverse-side electrode layer laminated on the obverse surface of the dielectric layer, and a reverse-side electrode layer laminated on the reverse surface of the dielectric layer. The obverse-side electrode layer and the reverse-side electrode layer may each contain carbon nanotubes and the average thickness of the each of obverse-side electrode layer and the reverse-side electrode layer may be 0.1 ?m or more and 10 ?m or less. The obverse-side electrode layer and the reverse-side electrode layer may be formed by applying a coating solution containing carbon nanotubes. The obverse-side electrode layer and the reverse-side electrode layer may each include a plurality of band-shaped bodies.

Abstract: A sensor device includes a sensor element, a converter, and an output unit. The sensor element includes a sheet-like dielectric layer including an elastomer composition and a top electrode layer and a bottom electrode layer each including an electroconductive composition containing carbon nanotubes. The top and the bottom 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 at least partially opposed portions of the top and the bottom electrode layers constitute a detection portion, and the dielectric layer reversibly deforms to change an area of a main surface of the dielectric layer. The converter electrically is connected to the sensor element and converts capacitance at the detection portion that varies in accordance with the deformation of the dielectric layer to electric characteristics.

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.

Abstract: Provided is a stretchable electrode which has excellent flexibility, stretchability and electrical conductivity and is capable of suppressing increase of the electric resistance in being elongated and the occurrence of variation in the electric resistance during repeated stretching and contracting. The stretchable electrode of the present invention comprises a base formed of an elastomer composition and an electrode main body integrated with the base, wherein the electrode main body is formed using multi-walled carbon nanotubes having a fiber length of 50 ?m or more.

Abstract: The present invention aims to provide a capacitive sensor sheet excellent in detection sensitivity and detection accuracy in measuring changes in capacitance, and the capacitive sensor sheet of the present invention includes: a dielectric layer including an elastomer composition (A); a top electrode layer laminated on the obverse surface of the dielectric layer; and a bottom electrode layer laminated on the reverse surface of the dielectric layer, wherein portions at which the top electrode layer and the bottom electrode layer intersect as viewed in a thickness direction serve as a plurality of detection portions, and the capacitive sensor sheet further includes at least one of: a top covering electrode layer formed over the top electrode layer so as to cover the detection portions with a top flexible layer including an elastomer composition (B1) interposed therebetween; and a bottom covering electrode layer formed over the bottom electrode layer so as to cover the detection portions with a bottom flexible la

Abstract: Provided is a capacitive sensor sheet for use in measuring at least one of an amount of strain due to elastic deformation and a distribution of strain due to elastic deformation, and the capacitive sensor sheet comprises: a dielectric layer; a top electrode layer laminated on the obverse surface of the dielectric layer; and a bottom electrode layer laminated on the reverse surface of the dielectric layer, wherein the dielectric layer is composed of an elastomer composition containing a urethane elastomer, and each of the top electrode layer and the bottom electrode layer is composed of an electroconductive composition containing carbon nanotubes.

Abstract: A capacitance-type sensor sheet used for measuring an amount of stretch deformation and strain and/or distribution of stretch deformation and strain may include a dielectric layer made of an elastomer, an obverse-side electrode layer laminated on the obverse surface of the dielectric layer, and a reverse-side electrode layer laminated on the reverse surface of the dielectric layer. The obverse-side electrode layer and the reverse-side electrode layer may each contain carbon nanotubes and the average thickness of the each of obverse-side electrode layer and the reverse-side electrode layer may be 0.1 ?m or more and 10 ?m or less. The obverse-side electrode layer and the reverse-side electrode layer may be formed by applying a coating solution containing carbon nanotubes. The obverse-side electrode layer and the reverse-side electrode layer may each include a plurality of band-shaped bodies.

Abstract: A piezoelectric element is provided which enables superior piezoelectric effects to be attained while having a comparatively simple structure and being easy to produce. The piezoelectric element according to the present invention includes a plurality of strip-shaped flexible sheets having: a dielectric elastomer layer; and an electrode layer that is stretchable and laminated on the dielectric elastomer layer, the plurality of flexible sheets being superposed crosswise on each other and alternately folded in an accordion shape such that the flexible sheets are alternately stacked. It is preferred that at least one of the plurality of flexible sheets includes a pair of the dielectric layers laminated on front and back face sides of the electrode layer. The pair of flexible sheets are preferably superposed on each other crosswise at substantially right angles. The flexible sheets are preferably stacked to give no less than 10 layers and no greater than 10,000 layers.

Abstract: The invention provides a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of combined chlorine or the stabilizer in the water system is controlled by generating free residual chlorine in the water system, and a bactericidal/algicidal method including adding an oxidant-based bactericidal/algicidal agent and a stabilizer therefor to a target water system, characterized in that the amount of the oxidant-based bactericidal/algicidal agent added is controlled so that the concentration of total residual chlorine in the water system falls within a predetermined range, and the amount of combined chlorine or the stabilizer is controlled so that the concentration of free residual chlorine in the water system falls within a predetermined range.

Abstract: Ca ion is removed by a cation exchange resin and silica and corrosive ions are removed by an anion exchange resin. Even after the anion exchange resin reaches the silica break through point or after the cation exchange resin reaches the Ca ion break through point, the supply of water is continued until the average of silica concentration or Ca ion concentration reaches a predetermined value. By supplying both treated water before the break through point and treated water after the break through point, water containing silica or Ca ion of suitable concentration can be supplied to the water system with only one anion exchange column or cation exchange column.

Abstract: A system for automatically controlling navigation of a ship, particularly a small-sized ship in which the sole crew is on board, has a radio transmitter attached to the body of the crew, a radio receiver installed on board the ship so as to receive a signal transmitted by the radio transmitter, and a control command unit connected with the output side of the radio receiver so as to control the prime mover of the ship to thereby stop the ship when the crew fell overboard. The radio transmitter is adapted to transmit a radio signal while the crew is on board the ship and stop or attenuate the signal when the crew fell overboard, while the radio receiver is adapted to transmit an output signal to the control command unit when the generation of the signal by the transmitter is stopped or when the signal is attenuated.