Hitachi, Ltd.

Mitsubishi Hitachi Power Systems, Ltd.

Hitachi-Ge Nuclear Energy, Ltd.

So Kitazawa

Naoyuki Kono

Atsushi Baba

Isao Yoshida

Yuji Matsui

Akira Nishimizu

Yoshio Nonaka

Kouichi Kurosawa

Hisashi Endo

Hirofumi Ouchi

Masafumi Imai

Kenichi Otani

Taro Takagi

Taiichiro Yamada

Yutaka Abe

A single-element ultrasonic sensor includes a single transducer element and transmits an ultrasonic wave on the basis of a pulse wave. An ultrasonic array sensor includes a plurality of transducer elements and receives an ultrasonic reflected wave. A pulsar supplies the pulse wave to the single element ultrasonic sensor. A receiver receives electric signals from the transducer elements included in the ultrasonic array sensor. An amplification and conversion unit amplifies the electric signals received from the transducer elements included in the ultrasonic array sensor, converts the electric signals into digital signals, and arranges the digital signals in a serial order so as to generate a serial digital signal. An image generator generates an image on the basis of the serial digital signal.

Ultrasonic observation equipment, ultrasonic observation system, and ultrasonic observation method

An eddy current flaw detection system includes an eddy current flaw detection probe having a substrate facing an inspection surface, and at least one exciting coil and at least two detecting coils provided on the substrate, a scanning device which scans the probe on the inspection surface, a scan control device which drives and controls the scanning device, an eddy current flaw detection device which acquires results of detection of a plurality of detection points corresponding to combinations of the exciting and detecting coils for each scan position of the probe, and a data processing/display device which processes data from the scan control device and the eddy current flaw detection device and thereby displays a result of flaw detection. The data processing/display device acquires three-dimensional coordinates of the detection points for each scan position of the probe and thereby creates three-dimensional flaw detection data.

Eddy current flaw detection system and eddy current flaw detection method

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.

Ultrasonic inspection method and ultrasonic inspection device

An apparatus and a method for ultrasonic testing obtains high-resolution and high-S/N ratio testing results by driving a number of piezoelectric elements using fewer pulsers and receivers in comparison with the number of elements composing an array transducer. A sensor information setter sets a plurality of piezoelectric element groups used for transmission and a plurality of piezoelectric element groups used for reception among the plurality of piezoelectric elements composing an ultrasonic array transducer. A computer transmits an ultrasonic wave from the element cluster set for transmission, and stores an ultrasonic wave received by the element cluster set for reception. The procedure is repeated including different element cluster sets for transmission and reception to obtain first receive signals. The first receive signals are summed to obtain a second receive signal; and the second receive signal is displayed with reference to the sensor center position on a display unit.

Apparatus and method for ultrasonic testing

An ultrasonic inspection device allows position adjustment of three-dimensional inspection data and shape data to be easily performed on a display screen and allows a defect echo and a shape echo to be quickly identified. A calculator generates the three-dimensional inspection data from waveforms stored in a data storage unit. A three-dimensional display unit displays the three-dimensional inspection data generated by the calculator and the three-dimensional shape data on an object to be inspected. The calculator corrects the relative displayed positions of the three-dimensional inspection data and the three-dimensional shape data on the basis of a coordinate system defined by points and a surface that constitute a part of the three-dimensional shape data displayed by the three-dimensional display unit, and causes the three-dimensional display unit to display the three-dimensional inspection data and the three-dimensional shape data while the three-dimensional inspection data and the three-dimensional shape data overlap each other.

Ultrasonic inspection device and ultrasonic inspection method

Ultrasonic inspection equipment facilitates alignment of display positions of three-dimensional ultrasonic inspection data and three-dimensional shape data, and quickly discriminates between a defect echo and an inner-wall echo. A computerA has a position correction function of correcting a relative display position between three-dimensional shape data and three-dimensional ultrasonic inspection data. A display position of the three-dimensional ultrasonic inspection data or that of the three-dimensional shape data is moved by a norm of a mean vector along the mean vector that is calculated from a plurality of vectors defined by a plurality of points selected in the three-dimensional ultrasonic inspection data and by a plurality of points selected in the three-dimensional shape data. The three-dimensional shape data and the three-dimensional ultrasonic inspection data are displayed in such a manner as to be superimposed on each other on a three-dimensional display unitC.

Ultrasonic inspection equipment and ultrasonic inspection method

An ultrasonic probe issues an ultrasonic wave to an object, receives a reflected wave from an object, and is provided with multiple piezoelectric elements. A three-dimensional display section displays three-dimensional flaw detection data superimposed on three-dimensional shape data of an object. The computer acquires a reflected ultrasonic wave signal from a reference object (reference). Based on the acquired signal, the computer corrects a reflected ultrasonic wave signal acquired from another object having the same material and shape as the reference. The computer allows the three-dimensional display section to display three-dimensional flaw detection data generated from a reflected ultrasonic wave signal resulting from a difference between a reference and an object.

Ultrasonic flaw detector and ultrasonic flaw detection method

An X-ray CT apparatus includes a unit for transmitting an X-ray at not less than two different heights of a measurement object and obtaining a given CT image. Alternatively, the X-ray CT apparatus includes a unit for causing an X-ray to pass through the measurement object and obtaining a CT image and a unit for positioning the X-ray source at not less than two different heights of the measurement object, emitting the X-ray, and obtaining the given CT image. Alternatively, the X-ray CT apparatus includes a unit for causing an X-ray to pass through the measurement object and obtaining a CT image and a unit for obtaining CT image data at a third height position between a first and a second height positions based on CT image data of the first and second height positions of the measurement object.

Growing community of inventors

Mito, Japan

So Kitazawa