ULTRASOUND GEOMETRY VALIDATION WITH CORRECTION OF POSITIONING INACCURACY OF THE TRANSDUCER
    1.
    发明公开
    ULTRASOUND GEOMETRY VALIDATION WITH CORRECTION OF POSITIONING INACCURACY OF THE TRANSDUCER 审中-公开
    VALIDIERUNG EINER ULTRASCHALLGEOMETRIE MIT KORREKTUR DER POSITIONIERUNGSUNGENAUIGKEIT DES WANDLERS

    公开(公告)号:EP3132257A1

    公开(公告)日:2017-02-22

    申请号:EP15715218.2

    申请日:2015-04-02

    摘要: The invention relates to a method for ultrasonic geometry testing of a test object (28) at various measuring positions distributed along a surface (26) of a test object (x
    n ) by means of at least one ultrasonic transducer, comprising a plurality of steps. First, a calibration device (20) with known dimensions (OD
    cal (x
    n )) is provided. Then there follow several calibrating steps, during each of which a measuring position specific distance (WP(x
    n )) between calibration device (20) and ultrasonic transducer (10) is determined and stored by an ultrasonic transit time method, by at least one echo on at least one surface of the calibration device (20), using the known dimension (OD
    cal (x
    n) ) for each measuring position
    n . Subsequently, a test object (28) is provided, at which ultrasonic transit time measurements are performed in multiple test steps. Transit time measurements are thereby taken at several measuring positions x
    n , using at least one echo on at least one surface (26) of the test object (28). In the following evaluation step a dimension (27) of the test object is calculated using the measuring position- specific distances WP(x
    n ).

    摘要翻译: 本发明涉及一种用于通过至少一个超声波换能器沿着测试对象(xn)的表面(26)分布的各种测量位置处的测试对象(28)的超声几何测试的方法,包括多个步骤。 首先,提供具有已知尺寸(ODcal(xn))的校准装置(20)。 然后,遵循几个校准步骤,在每个校准步骤期间,校准装置(20)和超声换能器(10)之间的测量位置特定距离(WP(xn))通过超声波传播时间方法由至少一个回波确定和存储 在校准装置(20)的至少一个表面上,对于每个测量位置n使用已知尺寸(ODcal(xn))。 随后,提供测试对象(28),在多个测试步骤中执行超声波传播时间测量。 因此,在多个测量位置xn处使用在测试对象(28)的至少一个表面(26)上的至少一个回波进行运输时间测量。 在下面的评估步骤中,使用测量位置特定距离WP(xn)计算测试对象的尺寸(27)。