Abstract: A battery's state of charge estimation apparatus will be provided. The battery's state of charge estimation apparatus includes: a charge and discharge current detection unit; a terminal voltage detection unit; an open circuit voltage method state of charge estimation unit for estimating an open circuit voltage of the battery and an open circuit voltage method state of charge; a current integration method state of charge estimation unit for obtaining a current integration method state of charge as a state variable; and an error correction value calculation unit for calculating an error correction value for correcting the current integration method state of charge. The current integration method state of charge estimation unit corrects the current integration method state of charge by using the error correction value.

Abstract: To provide an art of making a position of an operation section adjustable. An operation unit including an operation section, a supporter that supports the operation unit, and an elastic member that is held between the operation unit and the supporter are included, and the operation unit is brought into pressure contact with the supporter by an elastic force of the elastic member, and thereby the operation unit is slidably assembled to the supporter.

Abstract: A device for estimating parameters of battery capable of improving, by using simple calculations, estimation accuracy of a parameter and the like of a battery equivalent circuit model will be provided.

Abstract: An apparatus and method for battery parameter estimation estimate the parameters of a battery equivalent circuit model while reducing the computation load. The apparatus includes a charge/discharge current detector (3) that detects a charge/discharge current value of a battery (1); a terminal voltage detector (2) that detects a terminal voltage value of the battery (1); and an estimator (4) that estimates, based on the charge/discharge current value and the terminal voltage value, parameters in a battery equivalent circuit model (41) that approximates the Warburg impedance of the battery (1).

Abstract: A support apparatus for disassembling and assembling a gas turbine engine includes an exhaust nozzle attaching and detaching device for guiding movement of an exhaust nozzle in an axis direction and including: a first guide jig detachably fixed to a casing; and a first holding tool detachably supporting the nozzle and engaged with the first guide jig, thereby enabling attaching and detaching the nozzle easily and securely while leaving the engine in a horizontal attitude. The apparatus also includes a low-pressure turbine attaching and detaching device guiding movement of a low-pressure turbine in the axis direction and including: a second guide jig detachably fixed to the casing; and a second holding tool detachably supporting the turbine and engaged with the second guide jig, thereby enabling attaching and detaching the turbine easily and securely while leaving the engine in the horizontal attitude.

Abstract: To provide an art of making a position of an operation section adjustable. An operation unit including an operation section, a supporter that supports the operation unit, and an elastic member that is held between the operation unit and the supporter are included, and the operation unit is brought into pressure contact with the supporter by an elastic force of the elastic member, and thereby the operation unit is slidably assembled to the supporter.

Abstract: A parameter estimation device for a battery capable of reducing an error in estimate of an internal resistance caused by a temperature difference is provided. In a parameter estimation device for a battery (1) for sequentially estimating parameters including a resistance in an equivalent circuit model (41) of the battery based on a temperature of the battery and at least one of a voltage of the battery and a current of the battery, as a resistance value of the resistance in the equivalent circuit model of the battery, a resistance value at a predetermined temperature is estimated, and a resistance value at a present temperature is calculated based on the resistance value at the predetermined temperature and the present temperature.

Abstract: A support apparatus for disassembling and assembling a gas turbine engine includes an exhaust nozzle attaching and detaching device for guiding movement of an exhaust nozzle in an axis direction and including: a first guide jig detachably fixed to a casing; and a first holding tool detachably supporting the nozzle and engaged with the first guide jig, thereby enabling attaching and detaching the nozzle easily and securely while leaving the engine in a horizontal attitude. The apparatus also includes a low-pressure turbine attaching and detaching device guiding movement of a low-pressure turbine in the axis direction and including: a second guide jig detachably fixed to the casing; and a second holding tool detachably supporting the turbine and engaged with the second guide jig, thereby enabling attaching and detaching the turbine easily and securely while leaving the engine in the horizontal attitude.

Abstract: An apparatus and method for battery parameter estimation estimate the parameters of a battery equivalent circuit model while reducing the computation load. The apparatus includes a charge/discharge current detector (3) that detects a charge/discharge current value of a battery (1); a terminal voltage detector (2) that detects a terminal voltage value of the battery (1); and an estimator (4) that estimates, based on the charge/discharge current value and the terminal voltage value, parameters in a battery equivalent circuit model (41) that approximates the Warburg impedance of the battery (1).

Abstract: A device for estimating state of health of battery, and a state of health estimation method with improved estimation accuracy of the state of health of the battery are provided. The device for estimating state of health includes: a charge and discharge current detection unit (1); a terminal voltage detection unit (2); a first state of charge estimation unit (4) configured to estimate a first state of charge; a second state of charge estimation unit (5) configured to estimate a second state of charge; a first state of health estimation unit (6); a second state of health estimation unit (7); and a first correction value calculation unit (9) configured to calculate a first correction value for correcting the first state of charge. The first state of charge estimation unit (4) is configured to correct the first state of charge using the first correction value.

Abstract: A battery SoC estimation device includes a discharge-and charge current detection means 1, a terminal-voltage detection means 2, a current-integration SoC estimation means 3, an open-circuit-voltage SoC estimation means 4, an error estimation means 6, and an SoC calculating means 7. The estimation means 3 estimates a current-integration-method SoC (SoCi), calculating variance of current-integration-method SoC based on information on detection accuracy of the detection means 1. The estimation means 4 estimates an open-circuit-voltage-method SoC (SoCv) corresponding to an open circuit voltage value estimated based on a discharge-and-charge current value and a terminal voltage value, using a battery equivalent circuit model. The estimation means 6 estimates an estimate error ni of the current-integration-method SoC based on a difference between the SoCv and the SoCi, variance of the SoCi, and variance of the SoCv. The calculating means 7 calculates SoC of a battery based on the SoCi and the ni.

Abstract: An estimation device and estimation method that can reduce computational load and enhance estimation accuracy in state estimation of an internal state quantity in a nonlinear system are provided. An estimation device (1) estimates an internal state quantity in a nonlinear system using a nonlinear Kalman filter. The nonlinear Kalman filter includes: a prior estimation prediction phase in which a prior state estimate and a prior covariance matrix of a state are calculated based on a state equation relating to the nonlinear system; and a prior estimation update phase in which a prior output estimate, a covariance matrix of an output, and a cross covariance matrix of the state and the output are calculated based on an output equation relating to the nonlinear system. EKF is used in one of the prior estimation prediction phase and the prior estimation update phase, and UKF is used in the other phase.

Abstract: A heat-resistant ultrasonic sensor forms a piezo-electric ceramics film with a thickness of 0.5 mm or smaller and a Curie point of 200° C. or higher on a flexible metal plate. A thin metal film that is an electrode is attached to a top surface of the piezo-electric ceramics film and a metal wire mesh covers the thin metal film and is attached to a top surface of the thin metal film. A core of a heat-resistant coaxial cable is connected to the metal wire mesh at a connection point. The heat-resistant coaxial cable is fixed to the thin metal plate with a metal fixing member that is a ground portion. An electric insulating cover is attached to the thin metal plate and covers the piezo-electric ceramics film, the thin metal film, the metal wire mesh, the connection point, the fixing member, and the core of the coaxial cable.

Abstract: An ultrasonic reactor water level measuring device and an evaluation method are provided and prevent a reduction in the measurement accuracy of a water level that is in a wide measurement range. The ultrasonic reactor water level measuring device includes an upper tube extending from a gas phase portion in a reactor, a lower tube extending from a liquid phase portion in the reactor, measurement tubes connected to each other and arranged at multiple stages between the upper tube and the lower tube, and units for generating and receiving ultrasonic waves, the units being arranged at bottom portions of the measurement tubes. The ultrasonic reactor water level measuring device measures levels of water within the measurement tubes and calculates a water level within the reactor from the sum of the measured water levels, the sum excluding an overlapped part of the measurement tubes.

Abstract: A parameter estimation device includes an input signal detecting means 3 that detects an input signal inputted to an object system 1 expressed by an equivalent circuit model 5A containing at least an integrator element COCV, an output signal detecting means 2 that detects an output signal outputted from the object system, an output differentiating means 4 that differentiates the output signal to obtain and output an output differential signal, a modified equivalent circuit model 5B where respective elements of the equivalent circuit model 5A are changed to non-integrator elements in such a way that the output when the input signal is inputted becomes an output differential signal, and an element parameter estimating means 5 that estimates the parameters corresponding to the respective elements based on the modified equivalent circuit model by using the signals.

Abstract: Hydrogen which has entered into a pressure/differential pressure transmitter from external or internally generated hydrogen and hydrocarbons are converted to air bubbles within pressure guide paths. As a result, the indicated value drifts and an accurate numerical value is not output. A pressure/differential pressure transmitter includes a space formed between a diaphragm and a main body side wall face, pressure guide paths connected to the main body side wall face, a sealed liquid sealed in the space and the pressure guide paths to transmit a pressure received by the diaphragm to a sensor, and a hydrogen absorption material provided at least in the sealed liquid, on the main body side wall face, or in a part of a path between the main body side wall face and the sensor to absorb hydrogen atoms in the sealed liquid.

Abstract: An ultrasonic inspection method and an ultrasonic inspection device allow three-dimensional inspection data and three-dimensional shape data to be appropriately positioned on a display screen and allow a defect echo and a shape echo to be quickly identified even when information on the relative positions of a probe and an object to be inspected is not provided. The ultrasonic inspection data that is generated from the waveforms of ultrasonic waves received by an ultrasonic probe is compared with a plurality of ultrasonic propagation data pieces calculated by a ray tracing method on the basis of the three-dimensional shape data on an object to be inspected. The position of the three-dimensional inspection data or the three-dimensional shape data is moved relative to the other data position on the basis of the comparison results, thereby displaying the three-dimensional inspection data and the three-dimensional shape data while overlapping each other.

Abstract: A device for estimating parameters of battery capable of improving, by using simple calculations, estimation accuracy of a parameter and the like of a battery equivalent circuit model will be provided.

Abstract: The present invention provides instrumentation equipment for a nuclear power plant in which the formation of bubbles in an impulse line can be surely inhibited and thereby reliability and maintainability are improved for a long period of time. Instrumentation equipment for a nuclear power plant including: a tubular impulse line provided on a site to measure a fluid to be measured in a primary system of a nuclear power plant; a sealed liquid filled within the impulse line; a pressure-sensing diaphragm provided in a state of closing one opening of the impulse line to receive a pressure of the fluid to be measured; a pressure sensor provided on another opening of the impulse line in a state of being exposed to the sealed liquid; and a hydrogen storage material provided within the impulse line.

Abstract: Vibration of a jet pump installed in a reactor pressure vessel of a boiling water reactor is monitored. Ultrasonic waves are transmitted from an ultrasonic sensor installed on an outer surface of the reactor pressure vessel toward a throat and a diffuser of the jet pump. When the ultrasonic waves reach respective outer surfaces of the throat and diffuser, reflected waves are generated at the respective outer surfaces. The ultrasonic sensor receives those reflected waves. The ultrasonic signal process section obtains a distance in the horizontal direction between the throat and the diffuser based on a time difference of the reflected waves reflected from respective reflection surfaces of the throat and diffuser and a sound speed in reactor water in the neighborhood of the throat and diffuser. A relative vibration is obtained based on the change with time of the distance.