Abstract: An acoustic inspection device according to an embodiment has: an acoustic transducer including a piezoelectric element having at least one of functions of transmitting and receiving acoustic waves, and having an acoustic function surface functioning as at least one of a transmitting surface and a receiving surface of acoustic waves; a couplant, which is provided directly or with an intermediate member therebetween on the acoustic function surface of the acoustic transducer and contains at least an elastomer, having a contact surface to be in contact with an inspection target and an uneven structure provided on the contact surface; and a loading mechanism which applies and removes a load to/from the couplant.

Abstract: A sensor includes a first element part having a first member and a first element. The first member is a acoustic tubular waveguide and extends along a first direction. The acoustic tubular waveguide includes a first opening and a second opening. A direction from the second opening toward the first opening is along the first direction. The first element includes a vibratile first membrane, and a first supporter supporting the first membrane. The second opening is between the first opening and the first membrane in the first direction. The sensor may be a Piezoelectric Micro electro mechanical systems Ultrasonic Transducer and may be used for inspecting paper and/or resin including detecting thickness of a fed through banknote and/or the presence of foreign matter thereon such as tape. An optical element may alternatively measure the vibration of a membrane from acoustic through transmission instead of an acoustic receiver.

Abstract: A sonic inspection device of an embodiment includes: a sonic probe which includes a vibrator having at least one of functions of transmitting a sound wave and of receiving a sound wave and which has a sonic function surface functioning as at least one of surfaces for transmitting the sound wave and for receiving the sound wave; a contact member including a couplant and a sheet member, the couplant being in contact with the sonic function surface of the sonic probe directly or through an intermediate member and containing at least an elastomer, and the sheet member being in contact with the couplant and having a plurality of holes; and a loading mechanism which applies/removes a load to/from the contact member. The sheet member has a thickness of not less than 0.15 times nor more than 0.35 times a wavelength ? of the sound wave propagated in the couplant.

Abstract: According to one embodiment, a data processing device includes an acquisition part, and a processor. The acquisition part is configured to acquire first data including time-series image data. The processor is configured to derive first feature information based on a multidimensional array of n dimensions based on the first data acquired by the acquisition part. n is an integer not less than 3. A first axis of the multidimensional array is related to time.

Abstract: A sonic inspection device according to an embodiment includes: a sonic probe that includes a transducer configured to perform at least one of transmitting a sound wave and receiving a sound wave and has a sonic function surface constituting at least one of a transmitting surface of the sound wave and a receiving surface of the sound wave; a contact member that includes a couplant and a sheet-shaped member, the couplant having a first surface, which is in contact with the sonic function surface of the sonic probe directly or while interposing an intermediate member, and a second surface on an opposite side of the first surface, and containing an elastomer, and the sheet-shaped member laminated with the couplant to be in contact with the second surface and containing a polymer; and a loading mechanism configured to apply a load to the contact member.

Abstract: A sonic inspection device of an embodiment includes: a sonic probe which includes a vibrator having at least one of functions of transmitting a sound wave and of receiving a sound wave and which has a sonic function surface functioning as at least one of surfaces for transmitting the sound wave and for receiving the sound wave; a contact member including a couplant and a sheet member, the couplant being in contact with the sonic function surface of the sonic probe directly or through an intermediate member and containing at least an elastomer, and the sheet member being in contact with the couplant and having a plurality of holes; and a loading mechanism which applies/removes a load to/from the contact member. The sheet member has a thickness of not less than 0.15 times nor more than 0.35 times a wavelength ? of the sound wave propagated in the couplant.

Abstract: A multilayer ultrasonic transducer of an embodiment includes: a plurality of stacked oscillators; external electrodes disposed on outer exposed surfaces of two oscillators disposed in the outermost layers out of the plurality of oscillators; and a plurality of internal electrodes each disposed between two of the plurality of oscillators. There are provided electrode regions in which the plurality of internal electrodes are arranged such that the number of layers of the internal electrodes in a direction in which the oscillators are stacked gradiently increases from an inner region toward an outer peripheral region of the plurality of oscillators, and ultrasonic waves emitted from the plurality of oscillators are focused toward at least the inner region.

Abstract: A sonic device in an embodiment includes a sonic transducer unit and a sonic propagation unit. The sonic transducer unit performs at least one of transmitting and receiving a sonic wave, and has a sonic function surface to configure at least one of a wave transmitting surface and a wave receiving surface. The sonic propagation unit includes: a substrate having a pair of electrodes; an electroadhesive element expressing body including a resin crosslinked body arranged on the substrate, and particles dispersed in the resin crosslinked body; and a power supply to apply voltage to the pair of electrodes. The sonic propagation unit is provided on the sonic function surface of the sonic transducer unit, and the electroadhesive element expressing body in the sonic propagation unit comes into contact with a test object.

Abstract: According to an embodiment of the invention, a sensor includes a first element part. The first element part includes a first member and a first element. The first member is tubular and extends along a first direction. The first member includes a first opening and a second opening. A direction from the second opening toward the first opening is along the first direction. The first element includes a vibratile first membrane, and a first supporter supporting the first membrane. The second opening is between the first opening and the first membrane in the first direction.

Abstract: An acoustic inspection device according to an embodiment has: an acoustic transducer including a piezoelectric element having at least one of functions of transmitting and receiving acoustic waves, and having an acoustic function surface functioning as at least one of a transmitting surface and a receiving surface of acoustic waves; a couplant, which is provided directly or with an intermediate member therebetween on the acoustic function surface of the acoustic transducer and contains at least an elastomer, having a contact surface to be in contact with an inspection target and an uneven structure provided on the contact surface; and a loading mechanism which applies and removes a load to/from the couplant

Abstract: A parameter estimation method, comprises: acquiring appearance information including a shape information and a position information of at least one package; vibrating the at least one package at least at one position selected in accordance with the appearance information, and acquiring at least one data showing a vibration of the at least one package, and estimating a value of at least one parameter of the at least one package in accordance with a relation between the at least one data and the at least one parameter.

Abstract: A sonic device in an embodiment includes a sonic transducer unit and a sonic propagation unit. The sonic transducer unit performs at least one of transmitting and receiving a sonic wave, and has a sonic function surface to configure at least one of a wave transmitting surface and a wave receiving surface. The sonic propagation unit includes: a substrate having a pair of electrodes; an electroadhesive element expressing body including a resin crosslinked body arranged on the substrate, and particles dispersed in the resin crosslinked body; and a power supply to apply voltage to the pair of electrodes. The sonic propagation unit is provided on the sonic function surface of the sonic transducer unit, and the electroadhesive element expressing body in the sonic propagation unit comes into contact with a test object.

Abstract: A multilayer ultrasonic transducer of an embodiment includes: a plurality of stacked oscillators; external electrodes disposed on outer exposed surfaces of two oscillators disposed in the outermost layers out of the plurality of oscillators; and a plurality of internal electrodes each disposed between two of the plurality of oscillators. There are provided electrode regions in which the plurality of internal electrodes are arranged such that the number of layers of the internal electrodes in a direction in which the oscillators are stacked gradiently increases from an inner region toward an outer peripheral region of the plurality of oscillators, and ultrasonic waves emitted from the plurality of oscillators are focused toward at least the inner region.

Abstract: A parameter estimation method, comprises: acquiring appearance information including a shape information and a position information of at least one package; vibrating the at least one package at least at one position selected in accordance with the appearance information, and acquiring at least one data showing a vibration of the at least one package, and estimating a value of at least one parameter of the at least one package in accordance with a relation between the at least one data and the at least one parameter.

Abstract: According to one embodiment, a sensor includes a transmission/reception device and a processing device. The transmission/reception device is configured to emit a pulse wave having a first frequency toward liquid in a container, to receive a reflection wave of the pulse wave, and to output a first signal. The container includes a part in contact with the liquid. The processing device is capable of outputting strength of a first frequency reflection wave of a first frequency band contained in a second signal and strength of a second frequency reflection wave of a second frequency band contained in a third signal. The third signal is obtained by squaring the second signal. The second signal is obtained by subtracting a fourth signal from the first signal. The fourth signal is obtained by integrating the first signal. The first frequency band includes the first frequency.

Abstract: According to one embodiment, a liquid crystal/polymer complex includes a liquid crystal material, a polymer, and a chiral agent. The liquid crystal material exhibits blue phase and contains liquid crystal molecules that are spirally arranged to form liquid crystal molecular cylinders having a spiral arrangement. The polymer maintains the arrangement and has a dendrimer-type structure including a dendrimer unit and a polymerizable unit bonded to an end of the dendrimer unit. The dendrimer unit contains a central atom and at least two branched structures bonded to the central atom and has a generation of two or more. The polymerizable unit contains a polymerizable group which can bond to a polymerizable group.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The host material includes a polymer containing dibenzothiophene backbones represented by the following formula (1) as repeating units: wherein n is an integer of from 20 to 10,000.

Abstract: According to one embodiment, a liquid crystal/polymer complex includes a liquid crystal material, a polymer, and a chiral agent. The liquid crystal material exhibits blue phase and contains liquid crystal molecules that are spirally arranged to form liquid crystal molecular cylinders having a spiral arrangement. The polymer maintains the arrangement and has a dendrimer-type structure including a dendrimer unit and a polymerizable unit bonded to an end of the dendrimer unit. The dendrimer unit contains a central atom and at least two branched structures bonded to the central atom and has a generation of two or more. The polymerizable unit contains a polymerizable group which can bond to a polymerizable group.

Abstract: According to one embodiment, there is provided an organic light-emitting diode including an anode and a cathode which are arranged apart from each other, and an emissive layer interposed between the anode and the cathode and including a host material and an emitting dopant. The host material includes a polymer containing dibenzothiophene backbones represented by the following formula (1) as repeating units: wherein n is an integer of from 20 to 10,000.

Abstract: Certain embodiments provide a method of manufacturing an organic thin film solar cell comprising forming, on a first electrode, a first transport layer having an uneven pattern and a photoelectric conversion layer provided on a surface of the uneven pattern, forming a second transport layer on a second electrode, and bringing the uneven pattern having the photoelectric conversion layer is formed thereon into contact with the second transport layer to mold the second transport layer.