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1. 发明公开

EP0293803A2 Fan-shape scanning ultrasonic flaw detecting apparatus 失效
标题翻译： FächerförmigerUltraschallwellenapparat zum Nachweisen von Defekten。
公开(公告)号：EP0293803A2
公开(公告)日：1988-12-07
申请号：EP88108619.3
申请日：1988-05-30
申请人： HITACHI, LTD.
发明人： Sasaki, Souji , Kino, Hirotoshi , Musha, Yoshinori , Kubota, Jun , Okada, Hisao
IPC分类号： G01N29/04
CPC分类号： G01S15/892 , G01N29/262 , G01S15/8934
摘要： Disclosure is a fan-shape scanning flaw detecting apparatus which comprises: a prove (1) provided with an ultrasonic wave transmitting-and-receiving array transducer (2) arranged along a circular arc and an acoustic lens (3) for converging and converting an ultrasonic beam (2a) transmitted/received by the array transducer (2) into a substantially parallel beam (3a); a scanning function section (6, 7 and 8) for sequentially switching the transmitting and receiving operation of a group of operative transducer elements of the array transducer (2) so as to make the ultrasonic beam (3a) perform fan-shape scanning; a picturizing processor section (11) for forming a sectional image of an object (4) to be examined on the basis of an echo signal (7a) obtained from the object to be examined; a display section (12) for displaying the sectional image; and a position detecting section (14) for detecting a position ( x ) where the ultrasonic beam (3a) is incident to the object to be examined when the prove is made to run along a surface of the object to be examined so as to perform the flaw detecting operation. In the apparatus, image information of a sectional image of the object to be examined under a running path of the prove is formed by the picturizing processor section on the basis of information representing the position ( x ) of the ultrasonic beam (3a) incident to the object to be examined obtained from the position detecting section and information representing a position and reflection intensity of a reflection source (43) inside the object to be examined obtained on the basis of a reflection signal of a transmitted ultrasonic pulse reflected by the reflection source, and the sectional image information is then read and displayed by the display section.
摘要翻译：公开的是一种扇形扫描探伤装置，其特征在于，包括：具备沿圆弧配置的超声波收发阵列换能器（2）的证明装置（1）和用于会聚和转换由阵列换能器（2）发射/接收的超声波束（2a）成基本平行的光束（3a）; 扫描功能部分（6,7和8），用于顺序切换阵列换能器（2）的一组操作换能器元件的发送和接收操作，以使超声波束（3a）进行扇形扫描; 根据从被检体取得的回波信号（7a），形成要检查对象物（4）的截面图像的图像处理部（11）用于显示所述截面图像的显示部分（12）; 以及位置检测部（14），用于检测当所述证明沿被检体的表面行进时所述超声波束（3a）入射到被检体的位置（x），从而进行缺陷检测操作。在该装置中，根据表示超声波束（3a）的位置（x）的信息，由该图像处理部构成在该证明的运行路径下的被检查对象的截面图像的图像信息，从位置检测部获得的待检查对象和表示反射源（43）的反射源（43）的位置和反射强度的信息，该反射源（43）基于由反射源反射的发射超声脉冲的反射信号，，然后由显示部分读取和显示截面图像信息。

2. 发明授权

EP0293803B1 Fan-shape scanning ultrasonic flaw detecting apparatus 失效
标题翻译：超声波具有用于误差检测的扇形扫描
公开(公告)号：EP0293803B1
公开(公告)日：1996-12-18
申请号：EP88108619.3
申请日：1988-05-30
申请人： HITACHI, LTD.
发明人： Sasaki, Souji , Kino, Hirotoshi , Musha, Yoshinori , Kubota, Jun , Okada, Hisao
IPC分类号： G01N29/04
CPC分类号： G01S15/892 , G01N29/262 , G01S15/8934

3. 发明公开

EP0293803A3 Fan-shape scanning ultrasonic flaw detecting apparatus 失效
标题翻译：扇形扫描超声波检测装置
公开(公告)号：EP0293803A3
公开(公告)日：1989-10-11
申请号：EP88108619.3
申请日：1988-05-30
申请人： HITACHI, LTD.
发明人： Sasaki, Souji , Kino, Hirotoshi , Musha, Yoshinori , Kubota, Jun , Okada, Hisao
IPC分类号： G01N29/04
CPC分类号： G01S15/892 , G01N29/262 , G01S15/8934
摘要： Disclosure is a fan-shape scanning flaw detecting apparatus which comprises: a prove (1) provided with an ultrasonic wave transmitting-and-receiving array transducer (2) arranged along a circular arc and an acoustic lens (3) for converging and converting an ultrasonic beam (2a) transmitted/received by the array transducer (2) into a substantially parallel beam (3a); a scanning function section (6, 7 and 8) for sequentially switching the transmitting and receiving operation of a group of operative transducer elements of the array transducer (2) so as to make the ultrasonic beam (3a) perform fan-shape scanning; a picturizing processor section (11) for forming a sectional image of an object (4) to be examined on the basis of an echo signal (7a) obtained from the object to be examined; a display section (12) for displaying the sectional image; and a position detecting section (14) for detecting a position ( x ) where the ultrasonic beam (3a) is incident to the object to be examined when the prove is made to run along a surface of the object to be examined so as to perform the flaw detecting operation. In the apparatus, image information of a sectional image of the object to be examined under a running path of the prove is formed by the picturizing processor section on the basis of information representing the position ( x ) of the ultrasonic beam (3a) incident to the object to be examined obtained from the position detecting section and information representing a position and reflection intensity of a reflection source (43) inside the object to be examined obtained on the basis of a reflection signal of a transmitted ultrasonic pulse reflected by the reflection source, and the sectional image information is then read and displayed by the display section.

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