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首页> 外国专利> ARRAY SENSOR FOR TRANSMITTING AND RECEIVING ULTRASONIC WAVES, ULTRASONIC DETECTOR AND DETECTION METHOD BY ULTRASONIC WAVES FOR STABILIZING AND INCREASING DETECTION SENSITIVITY BY DETECTING DIFFRACTED WAVE IN OBJECT

ARRAY SENSOR FOR TRANSMITTING AND RECEIVING ULTRASONIC WAVES, ULTRASONIC DETECTOR AND DETECTION METHOD BY ULTRASONIC WAVES FOR STABILIZING AND INCREASING DETECTION SENSITIVITY BY DETECTING DIFFRACTED WAVE IN OBJECT

机译：发射和接收超声波波的阵列传感器，超声波检测器和超声波波检测方法，通过检测物体中的衍射波来稳定和提高检测灵敏度

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PURPOSE: An array sensor for transmitting and receiving ultrasonic waves, an ultrasonic detector and an ultrasonic detecting method are provided to detect defect throughout the object securely by increasing the detection sensitivity stably. CONSTITUTION: A transmitting and receiving array sensor(14) has transmitting oscillator rows(15) and receiving oscillator rows(16). A focus(17) of a focusing sound field is electronically scanned in case of 1/2 of the total in adding the transmission angle of ultrasonic wave(16) to the receiving angle of diffracted wave(18) to be more than 30 angular degrees by the transmitting oscillators and the receiving oscillators. The end of defect(22) is detected from the received diffracted wave, and the depth of the defect is sized. The width of the oscillator in the oscillator row is 0.1 to 2 mm, and the gap between the oscillators is 0.05 to 0.2 mm.
机译：目的：提供一种用于发送和接收超声波的阵列传感器，超声波检测器和超声波检测方法，以通过稳定地提高检测灵敏度来安全地检测整个对象中的缺陷。组成：一个发射和接收阵列传感器（14）具有发射振荡器行（15）和接收振荡器行（16）。在将超声波（16）的发射角与衍射波（18）的接收角相加大于30度的情况下，在总数的1/2的情况下，电子扫描聚焦声场的焦点（17）。通过发射振荡器和接收振荡器。从接收到的衍射波中检测出缺陷的末端（22），并确定缺陷的深度。振荡器行中的振荡器的宽度为0.1至2mm，并且振荡器之间的间隙为0.05至0.2mm。

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