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    • 7. 发明授权
    • Method for the non-destructive testing of a test object by way of ultrasound and corresponding device
    • 通过超声波和相应设备对被测物进行无损检测的方法
    • US08714018B2
    • 2014-05-06
    • US12993429
    • 2009-04-06
    • York OberdoerferWolf-Dietrich Kleinert
    • York OberdoerferWolf-Dietrich Kleinert
    • G01N29/00G01N29/24
    • G01N29/069G01N29/262G01N29/4463G01N2291/044G01N2291/056
    • The non-destructive testing of a test object by way of ultrasound includes: (a) radiating directed ultrasonic pulses into the test object at an irradiation angle β wherein the irradiation angle β is set electronically, (b) recording echo signals that result from the ultrasonic pulses radiated into the test object, and (c) determining an irradiation position X0 in which echo signals can be recorded that can be associated with an error in the volume of the test object. The method also includes (d) determining the irradiation angle βmax for which the ERS value of the error reaches its maximum at position X0, (e) changing the irradiation position X0→X1 on the surface of the test object, the change of the irradiation position being captured, and (f) electronically adjusting the irradiation angle β in such a manner that the ERS value of the error reaches its maximum in the changed irradiation position X1.
    • 通过超声波对测试对象进行非破坏性测试包括:(a)以照射角度& bgr将定向超声波脉冲发射到测试对象中; 其中所述照射角度&bgr; (b)记录从辐射到测试对象中的超声波脉冲产生的回波信号,以及(c)确定可以记录回波信号的照射位置X0,该回波信号可以与该体积的误差相关联 测试对象。 该方法还包括(d)确定误差的ERS值在位置X0达到其最大值的照射角&bgr max,(e)改变被测物体表面上的照射位置X0→X1, 捕获的照射位置,(f)电子调节照射角度&bgr; 使得在改变的照射位置X1中误差的ERS值达到其最大值。
    • 9. 发明申请
    • PULSE-ECHO METHOD BY MEANS OF AN ARRAY-TYPE PROBE AND TEMPERATURE COMPENSATION
    • 脉冲式方法通过阵列式探头和温度补偿
    • US20110247417A1
    • 2011-10-13
    • US13062032
    • 2009-09-07
    • York OberdoerferMichael BerkeWolf-Dietrich KleinertJerome PoirierSascha Schieke
    • York OberdoerferMichael BerkeWolf-Dietrich KleinertJerome PoirierSascha Schieke
    • G01N29/07
    • G01N29/07G01N29/221G01N29/2468G01N29/2487G01N29/262G01N29/326
    • The invention relates to a nondestructive ultrasonic test method in which at least one ultrasonic pulse is emitted into a workpiece under test by means of at least one ultrasonic transmitter (3), the ultrasonic pulse is reflected on boundary surfaces within the workpiece, the reflected ultrasound is received by at least one ultrasonic receiver (2), and the associated signals are evaluated, the ultrasound penetrating a damping block (4) that is arranged between the workpiece and the transmitter or receiver. Said method is characterized in that it includes at least one step for determining the sound velocity in the damping block (4) by means of an array-type probe (1) comprising selectively controllable transducers; in said step, at least one first transducer (3) of the array-type probe (1) is used as the transmitter of at least one ultrasonic pulse, while at least one second transducer (2) of the array-type probe (1) is used as the receiver of the ultrasonic pulse, and the sound velocity in the damping block (4) is determined at least by measuring the propagation time of the ultrasound along the shortest distance (e1, e2) of the ultrasound between the respective transducers (2, 3) that are placed at a distance from each other.
    • 本发明涉及一种非破坏性超声波测试方法,其中至少一个超声波脉冲通过至少一个超声波发射器(3)发射到被测工件中,超声脉冲反射在工件内的边界表面上,反射超声波 由至少一个超声波接收器(2)接收,并且相关联的信号被评估,超声波穿过布置在工件和发射器或接收器之间的阻尼块(4)。 所述方法的特征在于,它包括至少一个步骤,用于通过包括有选择地可控制的换能器的阵列式探头(1)来确定阻尼块(4)中的声速; 在所述步骤中,阵列式探头(1)的至少一个第一换能器(3)用作至少一个超声脉冲的发射器,而阵列型探头(1)的至少一个第二换能器 )用作超声波脉冲的接收器,并且至少通过测量超声波在各个换能器之间的最小距离(e1,e2)上的最短距离(e1,e2)的传播时间来确定阻尼块(4)中的声速 (2,3),它们彼此相距一定距离。