Abstract: A wireless connector for wirelessly transmitting a to-be-transmitted target that is electric power and/or information, has a first unit and a second unit removably attached from the outside of a first object and a second object, respectively. The first unit includes a first transmission/reception part for wirelessly transmitting the to-be-transmitted target; and a first housing to which a first connector part for transmitting the to-be-transmitted target to/from the first object by being attached to the first object is fixed. The second unit includes a second transmission/reception part for wirelessly transmitting the to-be-transmitted target to/from the first transmission/reception part; and a second housing to which a second connector part for transmitting the to-be-transmitted target to/from the second object by being attached to the second object is fixed.

Abstract: A wireless connector includes: a first unit attached detachably from the outside of a first object; and a second unit attached detachably from the outside of a second object. The first unit includes a first housing to which a first transmission/reception part and a first connector part are secured, the first connector part being attached to the first object and transmitting a to-be-transmitted target between the first connector part and the first object. The second unit includes a second housing to which a second transmission/reception part and a second connector part are secured, the second connector part being attached to the second object and transmitting a to-be-transmitted target between the second connector part and the second object. The first transmission/reception part and the second transmission/reception part are arranged so as to be separated from each other and opposed to each other to wirelessly transmit the to-be-transmitted target.

Abstract: A first disclosure is a coil member wherein a lead wire is wound in oval shape, with an oval-shaped cross section being curved along a major-axis direction of the oval-shaped cross section and having a curvature axis in a direction parallel to a minor-axis direction of the oval-shaped cross section. A second disclosure is a contactless-type power transmission device provided with: a coil member as a first coil; a second coil; and a tilting shaft that makes variable, using the curvature axis as a rotating axis, an inclination between a central axis of the first coil, which is a rotational symmetry axis of the first coil, and a central axis of the second coil.

Abstract: A first disclosure is a coil member wherein a lead wire is wound in oval shape, with an oval-shaped cross section being curved along a major-axis direction of the oval-shaped cross section and having a curvature axis in a direction parallel to a minor-axis direction of the oval-shaped cross section. A second disclosure is a contactless-type power transmission device provided with: a coil member as a first coil; a second coil; and a tilting shaft that makes variable, using the curvature axis as a rotating axis, an inclination between a central axis of the first coil, which is a rotational symmetry axis of the first coil, and a central axis of the second coil.

Abstract: It is an object of the present invention to drive a mirror in a wide driving range and at a fast response speed. An imaging device 100 includes an imaging element 103, a mirror 102, a lens 101, and a mirror tilt actuator 110. The imaging element 103 images subject light that is reflected light from a subject. The mirror 102 reflects the subject light, and makes the subject light incident on the imaging element 103. The lens 101 collects the subject light on the mirror 102. The mirror tilt actuator 110 drives the mirror 102 so as to change an optical axis of the lens OAL. The optical axis of the lens OAL is an optical axis to be incident on the central part C of the imaging element 103 in the subject light exited from the lens 101.

Abstract: A reactor state monitoring apparatus including: a first gamma ray-dose measurement device that detects and measures an atmospheric radiation dose caused by radioactive substances on a containment vessel side respective to a biological shielding wall surrounding a pressure vessel and outside the pressure vessel; a second gamma ray-dose measurement device that detects and measures a radiation dose on the pressure vessel side respective to the biological shielding wall; a fuel radiation measuring device that detects and measures a radiation dose of fuel in the pressure vessel; and a water amount evaluation device that calculates a difference between radiation doses measured by the fuel radiation measuring device and the first gamma ray-dose measurement device as a corrected fuel radiation dose, and acquires a cooling water level as a water level evaluation value, based on the radiation dose measured by the second gamma ray-dose measurement device and the corrected fuel radiation dose.

Abstract: An isolation management system comprising: a database configured to store information which relates to a plant constructed with a plurality of components, the information comprising a relationship between the plurality of components; a receiver configured to receive designation of a targeted area information defining a target area in the plant; an analyzer configured to analyze a plurality of patterns of respective states of the plurality of components in connection with a changing state of at least one of the plurality of components in the targeted area, based on the information stored in the database; deep learning circuitry configured to extract at least one specific pattern from the plurality of patterns analyzed by the analyzer as an extraction pattern; a plan generator configured to generate a work plan based on the extraction pattern; and an output interface configured to output the work plan generated by the plan generator.

Abstract: A radiation detection apparatus includes a selecting unit that allows a light having a light emission wavelength and a polarization direction to pass thorough the selecting unit, an optical system that forms an image of the light, a photon detecting unit that observes the image formed by the optical system, and detects the photon in whole range of the entire image, a counting unit that calculates the number of the alpha rays based on a result of counting the photons derived from the light emission of gas excited by the alpha rays, whereby it is possible to sufficiently eliminate background light (noise light) even if background light is strong, and therefore observe weak light emission.

Abstract: An alpha ray observation device and an alpha ray observation method are provided that can correctly evaluate a signal derived from alpha rays. The alpha ray observation device according to an embodiment includes a device housing 10, an incident window 2, a condenser 3, an optical path changer 4, and a first optical detector 5. The device housing 10 is provided with an opening. The incident window 2 is provided at the opening, and can block beta rays. Emitted light originated by alpha rays caused from the measurement object set outside of the device housing 10 enters the inside of the device housing 10 through the incident window 2 with beta rays being blocked, and is condensed by the condenser 3, and the optical path is changed by the optical path changer 4, and subsequently the light is detected by the first optical detector 5. The first optical detector 5 outputs a signal according to the amount of detected light.

Abstract: It is an object of the present invention to drive a mirror in a wide driving range and at a fast response speed. An imaging device 100 includes an imaging element 103, a mirror 102, a lens 101, and a mirror tilt actuator 110. The imaging element 103 images subject light that is reflected light from a subject. The mirror 102 reflects the subject light, and makes the subject light incident on the imaging element 103. The lens 101 collects the subject light on the mirror 102. The mirror tilt actuator 110 drives the mirror 102 so as to change an optical axis of the lens OAL. The optical axis of the lens OAL is an optical axis to be incident on the central part C of the imaging element 103 in the subject light exited from the lens 101.

Abstract: An alpha ray observation device and an alpha ray observation method are provided that can correctly evaluate a signal derived from alpha rays. The alpha ray observation device according to an embodiment includes a device housing 10, an incident window 2, a condenser 3, an optical path changer 4, and a first optical detector 5. The device housing 10 is provided with an opening. The incident window 2 is provided at the opening, and can block beta rays. Emitted light originated by alpha rays caused from the measurement object set outside of the device housing 10 enters the inside of the device housing 10 through the incident window 2 with beta rays being blocked, and is condensed by the condenser 3, and the optical path is changed by the optical path changer 4, and subsequently the light is detected by the first optical detector 5. The first optical detector 5 outputs a signal according to the amount of detected light.

Abstract: A thickness measurement apparatus and method to measure an object to be inspected. The thickness measurement apparatus includes: an ultrasonic wave transmission/reception device that receives/transmits an ultrasonic wave to/from a wall of a pipe to be inspected, covered with a heat insulation material; a support device that supports the ultrasonic wave transmission/reception device from an outer surface of the pipe to be inspected; a thickness calculation device that measures a propagation time of the ultrasonic wave received/transmitted by the ultrasonic wave transmission/reception device, and calculates thickness of the pipe to be inspected; a calibration board with a predetermined thickness greater than a thickness of a dead zone of the ultrasonic wave transmission/reception device; and a calibration board adjustment device that moves the calibration board toward and away from a gap between the ultrasonic wave transmission/reception device and the outer surface of the pipe to be inspected.

Abstract: Provided is a liquid level measuring technique capable of measuring a liquid level with high accuracy even if a liquid stored in a container is boiling.

Abstract: An embodiment of a radiation detector has: a light collecting member; a photo detector that can receive light collected by the light collecting member and count number of photons; a wavelength selector that can selectively transmit light based on the light emission of gas caused by alpha rays by selectively transmitting light of a wavelength in a specific range; a shielding device that is can switch between an opened state in which it transmits light and a closed state in which it shields light; and a counting unit that calculates an alpha dose based on a difference calculated by subtracting number of noise photons detected in the photo detector within a predetermined time period when the shielding device is in the closed state from the number of photons received by the photo detector within the predetermined time period when the shielding device is opened state.

Abstract: A vibration measuring apparatus for nuclear reactor internal structure includes a holder which has an opening contact on a surface of a pressure vessel of a nuclear reactor; a vibrator accommodated in the holder so as to transmit or receive an ultrasonic wave; a couplant with which the holder is filled up; and, a bias component applies a biasing force to the vibrator in the direction of the opening; The couplant is a solid state of metal material at normal temperature and change to liquid stage by heat transfer from the pressure vessel.

Abstract: A light detecting unit of an alpha ray observation device observes an alpha ray by measuring generated light that is generated by the alpha ray produced in a region of a to-be-measured object. The light detecting unit has a travel direction changing unit that changes the direction of travel of generated light, a light detector that detects direction-changed light, which is the generated light after the direction of travel is changed, and a shielding member that shields the light detector from radiation and has a portion that is provided on the line from the to-be-measured object to the light detector. The shielding member may also surround the perimeter of the light detector and have an opening to allow generated light to reach the travel direction changing unit.

Abstract: An alpha ray observation apparatus, according to an embodiment, that observes alpha rays by detecting alpha ray caused light generated from an alpha ray source in a to-be-observed object, including: an alpha ray caused light wavelength selecting unit that can select light including wavelength of the alpha ray caused light; an alpha ray caused light detecting unit that measures an amount of alpha ray caused light; a short-side wavelength selecting unit that can select light of a short-side wavelength that is shorter than the wavelength of the alpha ray caused light; a short-side wavelength light detecting unit; a long-side wavelength selecting unit that can select light of a long-side wavelength that longer than the wavelength of the alpha ray caused light; a long-side wavelength light detecting unit; and a correction unit that calculates a corrected light amount by correcting the amount of the alpha ray caused light.

Abstract: A light detecting unit of an alpha ray observation device observes an alpha ray by measuring generated light that is generated by the alpha ray produced in a region of a to-be-measured object. The light detecting unit has a travel direction changing unit that changes the direction of travel of generated light, a light detector that detects direction-changed light, which is the generated light after the direction of travel is changed, and a shielding member that shields the light detector from radiation and has a portion that is provided on the line from the to-be-measured object to the light detector. The shielding member may also surround the perimeter of the light detector and have an opening to allow generated light to reach the travel direction changing unit.

Abstract: An embodiment of a radiation detector has: a light collecting member; a photo detector that can receive light collected by the light collecting member and count number of photons; a wavelength selector that can selectively transmit light based on the light emission of gas caused by alpha rays by selectively transmitting light of a wavelength in a specific range; a shielding device that is can switch between an opened state in which it transmits light and a closed state in which it shields light; and a counting unit that calculates an alpha dose based on a difference calculated by subtracting number of noise photons detected in the photo detector within a predetermined time period when the shielding device is in the closed state from the number of photons received by the photo detector within the predetermined time period when the shielding device is opened state.

Abstract: According to an embodiment, a nuclear reactor monitoring device comprises: an ultrasonic wave transmission means which is installed on the outside surface of a reactor pressure vessel and transmits ultrasonic pulses to the interior of the reactor pressure vessel; an ultrasonic wave receiving means which is installed on the outside surface of the reactor pressure vessels and receives reflected pulses including ultrasonic waves from the ultrasonic pulses reflected by an inspection object in the reactor pressure vessel; a preprocessing means which specifies and removes the reflected ultrasonic pulses generated in the wall of the reactor pressure vessel from the reflected pulse signal received by the ultrasonic wave receiving means or selectively extracts the reflected pulse signal; and a calculation means which determines the vibration of the inspection object from the reflection pulse signal processed by the preprocessing means in accordance with the observation time of the inspection object.