Activity flow and concepts

With 5 keywords as axes of operation, the cells of possibilities have begun their activities directed towards the future.

Action concepts and message of the Research Institute of Safety and Diagnosis Technology

Flexibility implies the courage to reform one's yardstick and sense of values from day to day. It is important not to be restricted by common sense but to maintain a broad perspective at all times and on all matters. This stance is the basis for discovering necessities and creating effective measures.

To create high added value, it is not enough to gather various technologies on a two-dimensional plane. A three-dimensional arrangement of technologies becomes necessary. For this purpose, it is believed that one must become widely versed in technologies of differing areas -- traditional areas and advanced areas -- and combine them on a higher level of thinking.

To establish safety engineering of the future, vast intellectual resources are required. It is also necessary to verify phenomena by actual practice. Through such practice, we shall cultivate the kind of "intelligence" that manifests intellectual resources as its strength.

We shall thoroughly pursue creative and intellectual jobsite principles. With "eyes that think" spread around the jobsite, new needs will be discovered. And, we will be aiming to establish a favorable cycle in which intelligence accompanies action and generates new action.

Necessity is not something that comes by itself. It is something that is discovered creatively from action and thought. It is our ultimate wish to create future safety needs, positively and creatively, rather than wait passively for such needs to arise.

Research activities and results

Direction of research

Tackling of cutting edge technology

Major themes

∗Development of new inspection technology through the application of cutting edge technologies for ultrasonic waves and irradiation
∗Development and application of transducers through the utilization of new materials
∗Development of original devices by applying new inspection methods

Development and commercialization of devices

∗Development of technology to identify differing defects detected by ultrasonic flaw detection of stainless steel welded parts
∗Development of quantitative measuring of minute elements by the application of X-ray absorption
∗Development of ultrasonic thin-type flexible sensors and composite sensors
∗Development of inspection devices for decreased wall thickness of piping with detection made over the insulation material by pulse ET
∗Original development of multi-functional ultrasonic wave devices, TOFD devices, etc.

Development and application of integrity evaluation technology

Major themes

∗Development of non-destructive evaluation technology for material deterioration of atomic power, thermal power and petroleum plants
∗Development of evaluation technology for the integrity of concrete structures

Development and commercialization of devices

∗Application of ultrasonic wave spectroscopy of backscattering waves to the initial stage of hydrogen attack and creep damage
∗Development of non-destructive evaluation technology for concrete compressive strength
∗Development of non-destructive measuring technology for the neutralization depth of concrete
∗Application of pulse ET in the examination and arrangement of reinforcing bars
∗Integrity evaluation of concrete underground piles by acoustic diagnosis

Development of monitoring evaluation technology

Major theme

∗Wide application of AE and remote sensing

Development and commercialization of devices

∗Development of monitoring technology for abnormal conditions of turbine power generators by AE
∗Development of abnormal condition detection devices for rotary machine bearings (friction, cracks) and technology to diagnose remaining service-life
∗Proposing of a centralized control system by remote monitoring
∗Development of technology for detecting the leakage of gas and liquids

Development of computer simulation technology

Major themes

∗Computer simulation of aged deterioration of materials
∗Analysis of propagation characteristics by ultrasonic wave scattering theory
∗Electromagnetic field analysis by finite element analysis
∗Backscattering wave theory analysis based on the existence of micro scatterers

Development and commercialization of devices

∗Development of aged deterioration simulation methods for thermal embrittlement, hydrogen attack and sensitization
∗Evaluation by computer simulation of the dynamic characteristics (stress - strain diagram, fracture toughness) of deteriorated materials
∗Modeling of signal analysis by electromagnetic field analysis of pulse ET phenomena