Satoshi Nagai

TL;DR: An ultrasonic transducer for inspection of an inner section of a furnace comprises a metallic plate 101 that emits or receives an ultrasonic wave to or from the inner part of the furnace, a piezoelectric element 102 in which electrode layers 103, 104 including a nickel layer are formed on front and rear surfaces thereof and a backing material 105 made of titanic acid aluminum series ceramic of which surface is covered with a metallic layer as discussed by the authors.

TL;DR: In this article, an ultrasonic test equipment includes: a signal generating mechanism that generates a voltage waveform, an AD converting mechanism that digitizes the received ultrasonic waveform and an analyzing mechanism that performs frequency analysis of the digital ultrasonic signal.

TL;DR: In this article, the authors present a method and a device for determining objectively and quantitatively optimum maintenance time by cost assessment on a risk basis in extracting failure of equipment composing a plant and failure phenomena conceivably associated therewith or monitoring the minimum items online.

TL;DR: In this paper, the authors present an apparatus that selects and specifies an optimal operating method for plant equipment while estimating risk-cost that relates to damage, performance deterioration, and functional stoppage, of the plant equipment, and comparing the risk cost with profit gained from operation.

TL;DR: In this article, an inspection device for the film flaw of a turbine blade capable of simply and accurately detecting the flaw of the film covering the surface of the turbine blade, and an inspection method using the same.