Kabushiki Kaisha Toshiba

Toshiba Plant Systems & Service Corporation

Hideo Isobe

Takahiro Ikeda

Hirokazu Karasawa

Ryoichi Arai

Noriyuki Yamane

Yoshino Ito

Tetsuo Kawakami

Kouichi Kokubo

Kazuyuki Haruna

Yoshio Ueda

Masamitsu Niki

Tsuyoshi Hieda

Tetsuya Yadoguchi

An ultrasonic flaw detecting apparatus including: a transducer including a piezoelectric element array for transmitting ultrasonic waves to and receiving echo signals from a test object; an element driving unit for scanning the piezoelectric element array at a predetermined cycle and generating the ultrasonic waves; a synthesizing unit for synthesizing an internal image of the test object based on the echo signals received by the piezoelectric element array; and a signal replacing unit for replacing the received echo signal with an echo signal in which a bottom echo of the test object is removed.

Ultrasonic flaw detecting apparatus and ultrasonic flaw detecting method

An ultrasonic inspection apparatus includes: an ultrasonic probe apparatus including an ultrasonic transducer; a drive element selecting section that selects a required piezoelectric vibrator of the ultrasonic transducer; a signal detecting circuit that detects an electric signal dependent on a reflected echo of an ultrasonic wave emitted from the selected piezoelectric vibrator; a signal processing section that produces data on an internal image of the inspection object based on the detected reflected echo; a second display unit that combines multiple pieces of image data acquired from the signal processing section and displays an integrated visualization data result; and an second input unit that is used to perform an operation command such as a command input to start or terminate an inspection or an a command to set inspection condition.

Ultrasonic inspection apparatus, ultrasonic probe apparatus used for ultrasonic inspection apparatus, and ultrasonic inspection method

An ultrasonic transducer is provided with a distance measuring ultrasonic sensor for detecting a distance between the ultrasonic transducer and a surface of an inspection object and an inclination of the ultrasonic transducer with respect to the surface of the inspection object, to control the distance and the inclination of the ultrasonic transducer with respect to the inspection object based on information detected by the distance measuring ultrasonic sensor, and at least part of ultrasonic wave transmission/reception by the distance measuring ultrasonic sensor is performed during execution of aperture synthesis processing during which transmission/reception by the ultrasonic transducer is not performed.

Ultrasonic inspection device and ultrasonic inspection method

There is provided an ultrasonic inspection apparatus which detects various deviations with respect to an ideal scanning position and achieves, with high accuracy, an ultrasound flaw inspection by autonomously adjusting the deviations. The ultrasonic inspection apparatus according to the present invention is provided with an integrated type ultrasound transducer including an ultrasonic transducer, an integral type ultrasound transducer control unit, an actuator for distance adjustment, an actuator for tilt control, and a distance measuring sensor. The integrated type ultrasound transducer calculates a deviation between a scanning position based on a preliminarily generated scanning path information and an ideal scanning position, and performs a deviation correction processing by autonomously controlling a distance and a tilt between an opening surface of the ultrasound transducer and an inspection region of an object to be inspected in accordance with this deviation.

Ultrasonic inspection apparatus

There is provided an ultrasonic inspection apparatus using scanning path information with high accuracy at a time of ultrasonic flaw inspection. The ultrasonic inspection apparatus includes: a measurement unit measuring a distance to a surface of the object to be inspected to obtain measurement data including a group of points; a shape data generation unit, by using the measurement data including the group of points obtained by the measurement unit, for generating shape data of the surface of the object to be inspected including the group of points having position information represented by a coordinate system of the scanner mechanism; and a path information generation unit, by using the shape data generated by the shape data generation unit, for calculating a passage point on the surface of the object to be inspected that forms a scanning path of the ultrasonic transducer, and generating the scanning path information of the ultrasonic transducer in which a normal vector of the passage point on the surface of the object to be inspected and an opening surface of the ultrasonic transducer intersect each other, and a distance between the passage point and a center of the opening surface of the ultrasonic transducer is constant.

An ultrasonic inspection apparatus includes an ultrasonic probe including an ultrasonic transducer, a position detection device, a drive element selector which is connected to the plurality of piezoelectric elements of the ultrasonic transducer provided so as to select a required piezoelectric element, a signal detection circuit which allows the piezoelectric element selected by the drive element selector to transmit ultrasonic wave to an inspection object through an acoustic transmission medium, which receives reflection echo thereof, and which detects an electric signal of the reflection echo through, a signal processor which generates three-dimensional imaging data inside of the inspection object by processing the electric signal of the detected reflection echo, a position converting circuit which outputs an imaging-start trigger signal to a signal generator in response to a position detection signal, and a display device which displays an imaging result.

Growing community of inventors

Tokyo, Japan

Hideo Isobe