In addition, this instrument can examine defects both in newly produced rails and in those that have being used. Besides, the operator can input different system parameters to fit the practical inspection requirements, thus the instrument's intelligent degree has been improved. Three image display means: A-scan, B-scan and C-scan can be carried out simultaneously, which make it convenient for the operator to have a direct reflection of the detected defects. real-time ultrasonic echo waves can be displayed on the screen of upper PC. Automatic flaw inspection and alarming can be carried out while. In the instrument, five ultrasonic transducers are used and the flaw detector is connected with an upper PC, which can be a notebook or an industrial PC at will. It is based on the ultrasonic nondestructive examination theory. A new intelligent instrument, specialized in inspecting defects in rails, is presented in this article.
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