THREE-DIMENSIONAL ULTRASONIC INSPECTION APPARATUS
First Claim
1. A three-dimensional ultrasonic inspection apparatus comprising:
- an ultrasonic transducer in which a plurality of piezoelectric vibrators are disposed in a matrix or an array;
a driving element selecting device to sequentially select piezoelectric vibrators from the plurality of piezoelectric vibrators disposed in the ultrasonic transducer to produce an ultrasonic wave;
a signal detecting device to cause the ultrasonic wave generated by the piezoelectric vibrator selected by the drive element selecting device to propagate through an acoustic wave propagating medium and enter a joined area of an object to be inspected for receiving a reflected echo from the joined area, and to detect an electric signal corresponding to the reflected echo from the joined area;
a signal processing device to subject the electric signal detected by the signal detecting device to signal processing, and to generate three-dimensional imaging data by causing the electric signal to correspond to a mesh element partitioned in a three-dimensional imaging region set inside the object to be inspected; and
a display processing device to display a result of processing three-dimensional imaging data generated by the signal processing device,wherein the display processing device includes;
a first peak detecting unit to detect a first peak of the intensity distribution of the three-dimensional imaging data in depth direction (z direction), the first peak primarily appearing at a depth position being deeper than a reference depth;
a second peak detecting unit to detect a second peak of the intensity distribution of the three-dimensional imaging data in depth direction, the second peak primarily appearing at a depth position being deeper than the depth position at which the first peak appears;
a joint portion image creation unit to create a three-dimensional image of a joined area by mapping a distance, between the depth position at which the first peak appears and the depth position at which the second peak appears, in depth direction at each position on x-y plane;
a determination unit to determine whether the joined area is sound or not in accordance with the three-dimensional image of the joined area, created by the joint portion image creation unit and a preset determination criteria; and
a display unit to display at least one of the three-dimensional image and the determination result determined by the determination unit.
1 Assignment
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Accused Products
Abstract
A three-dimensional ultrasonic inspection apparatus includes: an ultrasonic transducer disposed m×n piezoelectric vibrators in a matrix; a signal processing device to receive, detect an echo, and generate a three-dimensional image data by processing an electric signal of the echo detected; and a display processing device to display a result of processing the three-dimensional image data generated by the signal processing device, wherein the display processing device includes a peak detecting unit to detect a first peak and a second peak of an intensity distribution of the three-dimensional image data in a depth (z) direction, a joint portion image creation unit to create a three-dimensional image of the joined area by mapping z direction distance of the first peak and the second peak to x-y plane, a determination unit to determine whether the joined area is sound or not, and a display unit to display the three-dimensional image and the determination result of the joined area.
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Citations
6 Claims
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1. A three-dimensional ultrasonic inspection apparatus comprising:
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an ultrasonic transducer in which a plurality of piezoelectric vibrators are disposed in a matrix or an array; a driving element selecting device to sequentially select piezoelectric vibrators from the plurality of piezoelectric vibrators disposed in the ultrasonic transducer to produce an ultrasonic wave; a signal detecting device to cause the ultrasonic wave generated by the piezoelectric vibrator selected by the drive element selecting device to propagate through an acoustic wave propagating medium and enter a joined area of an object to be inspected for receiving a reflected echo from the joined area, and to detect an electric signal corresponding to the reflected echo from the joined area; a signal processing device to subject the electric signal detected by the signal detecting device to signal processing, and to generate three-dimensional imaging data by causing the electric signal to correspond to a mesh element partitioned in a three-dimensional imaging region set inside the object to be inspected; and a display processing device to display a result of processing three-dimensional imaging data generated by the signal processing device, wherein the display processing device includes; a first peak detecting unit to detect a first peak of the intensity distribution of the three-dimensional imaging data in depth direction (z direction), the first peak primarily appearing at a depth position being deeper than a reference depth; a second peak detecting unit to detect a second peak of the intensity distribution of the three-dimensional imaging data in depth direction, the second peak primarily appearing at a depth position being deeper than the depth position at which the first peak appears; a joint portion image creation unit to create a three-dimensional image of a joined area by mapping a distance, between the depth position at which the first peak appears and the depth position at which the second peak appears, in depth direction at each position on x-y plane; a determination unit to determine whether the joined area is sound or not in accordance with the three-dimensional image of the joined area, created by the joint portion image creation unit and a preset determination criteria; and a display unit to display at least one of the three-dimensional image and the determination result determined by the determination unit. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification