Detection of channel saturation in phase-array ultrasonic non-destructive testing
    79.
    发明授权
    Detection of channel saturation in phase-array ultrasonic non-destructive testing 有权
    相位超声波无损检测中的通道饱和度检测

    公开(公告)号:US08904872B2

    公开(公告)日:2014-12-09

    申请号:US12981228

    申请日:2010-12-29

    摘要: The present invention relates to a method of detecting non-linear operation of a measuring device comprising an array of transducers and at least one receiver channel portion. The method comprises receiving measured signals through transducers of the array, processing the measured signals from the transducers through the receiver channel portion, combining the processed measured signals to produce a combined measurement signal, and detecting non-linearity of the combined measurement signal and non-linear operation of the measuring device by detecting saturation of the receiver channel portion. In one embodiment, the receiver channel portion comprises an analog-to-digital converter, a threshold is assigned to a digital output of the analog-to-digital converter, and saturation of the receiver channel portion is detected when the digital output of the analog-to-digital converter oversteps the assigned threshold. In one application of the invention, the measuring device is a non-destructive testing device.

    摘要翻译: 本发明涉及一种检测包括一组换能器和至少一个接收器通道部分的测量装置的非线性操作的方法。 该方法包括通过阵列的换能器接收测量信号,通过接收器通道部分处理来自换能器的测量信号,组合经处理的测量信号以产生组合的测量信号,以及检测组合测量信号和非组合测量信号的非线性, 通过检测接收机通道部分的饱和度来测量设备的线性操作。 在一个实施例中,接收器通道部分包括模数转换器,阈值被分配给模数转换器的数字输出,并且当模拟数字输出的数字输出被检测到接收器通道部分的饱和 数字转换器超过分配的阈值。 在本发明的一个应用中,测量装置是无损检测装置。