Mitsubishi Heavy Industries Limited

Mitsubishi Heavy Industries Mechatronics Systems, Ltd.

Mitsubishi Hitachi Power Systems, Ltd.

Jun Yasui

Keiichi Morishita

Hideaki Murata

Naoki Oyama

Takeshi Nagata

Kenji Iizuka

Hisaji Takeuchi

Yoshifumi Hayakawa

Masaaki Kurokawa

Seiki Kato

Shigetoshi Shiotani

Keiichi Kenmotsu

A power-receiving-module-type telemeter transmitter of a telemeter measuring system that is provided in a rotor and that performs communication using power received from a power transmitting antenna formed in an arc shape on a stator side, includes: a plurality of power receiving modules disposed in the rotor at intervals in a circumferential direction; an OR circuit that outputs a highest voltage among voltages input from the plurality of power receiving modules; a sensor that measures a state of a monitoring target and that outputs measurement data indicating the state; and a transmitting unit that is driven by the voltage input from the OR circuit as a power source and that transmits a radio signal including the measurement data of the sensor.

Power-receiving-module-type telemeter transmitter, telemeter measuring system, rotary machine, and telemeter transmission method

A measurement system includes a stator-side unit and a rotor-side unit installed on the rotary machine. The stator-side unit includes a stator-side antenna, an oscillation unit that oscillates a microwave signal and outputs the oscillated microwave signal to the stator-side antenna, and a reception unit that demodulates the microwave signal and outputs a desired signal. The rotor-side unit includes a sensor, a rotor-side antenna that receives a microwave transmitted by the stator-side antenna and outputs the microwave signal, a power conversion unit that converts the received microwave signal into predetermined DC power and outputs the DC power, and a modulation unit that modulates a rotor output signal or a multiplication rotor output signal obtained by frequency multiplication of the rotor output signal, according to the output signal of the sensor, using the DC power output of the power conversion unit, and outputs the modulated rotor signal to the rotor-side antenna.

Measurement system, rotary machine and measurement method for the same

A phase rotation amount of each of subcarriers is calculated by calculating a difference between the first phase difference and the second phase difference between consecutive subcarriers included in radio signals, and performing phase addition processing based on the difference. A characteristic coefficient regarding a change rate of the phase rotation amount of each of the subcarriers with respect to a frequency is calculated by performing a linear regression analysis of the relationship between a frequency and the phase rotation amount, and a distance is estimated based on the characteristic coefficient.

Distance estimation device, mobile terminal, distance estimation method, and program

A wireless power supply device that wirelessly supplies power from a stator side to a plurality of power-receiving antennas disposed on a rotor rotated about an axis (O) at intervals in a circumferential direction includes: an oscillator () that oscillates a high-frequency signal; and an annular power transmitter () that has a leaky waveguide () in which a plurality of radiating portions () that radiate the high-frequency signal as a radio wave are arranged in the circumferential direction and extend in a circular arc shape in the circumferential direction.

Wireless power supply device, telemetric measuring system, rotating machine, system for supplying power wirelessly to rotating body, and turbine system

An on-board unit includes a first antenna and a second antenna, a traffic data service communicating section corresponding to a traffic data service; a billing service communicating section corresponding to a billing service, a switch which switches a connection relation between each of the first antenna and the second antenna and the traffic data service communicating section and the billing service communicating section, a control section which controls the switch. When the operation mode is switched from the traffic data service mode to the billing service mode, the on-board unit is set to a switching communication mode in which one of the first antenna and the second antenna is connected with the traffic data service communicating section and the other is connected with the billing service communicating section.

On-board unit, communication method, and recording medium

A communication system includes an on-board unit adapted to a vehicle-vehicle communication and roadside equipmentperforming a roadside-vehicle communication. In communications in service channels of the vehicle-vehicle communication, one reception-only service channel in which the on-board unit only performs a reception operation is provided for a plurality of the service channels and communications in the reception-only service channel is performed at the same frequency as that of the control channels of the roadside-vehicle communication. When the vehicle-vehicle communication is performed, the on-board unit performs switching to the roadside-vehicle communication in response to detection of reception in the reception-only service channel of a radio signal transmitted from the roadside equipmentin a control channel of the roadside-vehicle communication.

Vehicle communication system, on-board unit, recording medium and communication method

A film thickness measurement apparatus includes: an ECT sensor for measuring a film thickness of a thermal barrier coating formed on a turbine blade; a storage unit for storing a measurement point on the turbine blade which is a point where the film thickness of the thermal barrier coating is measured; a laser displacement meter for measuring a shape of the turbine blade; a measurement position calculation unit for calculating an actual measurement point suitable for actual film thickness measurement using the ECT sensor, based on the shape of the turbine blade measured by the laser displacement meter and the measurement point on the turbine blade stored in the storage unit; and an arm drive unit for driving the ECT sensor to adjust a measurement position of the ECT sensor based on the actual measurement point calculated by the measurement position calculation unit.

Growing community of inventors

Tokyo, Japan

Jun Yasui