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Manual multichannel TOFD (time of flight diffraction) scanning frame

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TLDR
In this paper, a manual multichannel TOFD scanning frame is presented, which consists of a total coder, a roller, a pushing handle and a plurality of pairs of probe assemblies.
Abstract
The invention provides a manual multichannel TOFD (time of flight diffraction) scanning frame and belongs to the technical field of machines. The manual multichannel TOFD scanning frame can be used for solving the problems that the existing TOFD scanning frame is inconvenient in operation and scanned data is not accurate enough. The multichannel TOFD scanning frame comprises a total coder, a roller, a pushing handle and a plurality of pairs of probe assemblies as well as a vertical beam and a plurality of cross beams, wherein the probe assemblies are electrically connected with the total coder, the roller and the probe assemblies are arranged on the cross beam, the pushing handle and the total coder are connected above the vertical beam, an alarm and a steering angle instrument are also arranged on the scanning frame, the steering angle instrument is arranged on the vertical beam and is electrically connected with the total coder, and the alarm is electrically connected with the total coder. The multichannel TOFD scanning frame has the advantages that whether the direction of travel of the scanning frame shifts from a desired track or not is detected by virtue of the steering angle instrument, and an alarm is given to inform a scanning worker of adjusting a scanning direction, so that accuracy of defect data obtained by scanning is guaranteed.

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References
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