Automatic switching device of ultrasonic signal channels
A technology of channel switching and automatic switching, which is applied in measurement devices, analysis of solids using sonic/ultrasonic/infrasonic waves, and material analysis using sonic/ultrasonic/infrasonic waves, etc. And other issues
Inactive Publication Date: 2012-06-20
CHENGDU LEAD SCI TECH CO LMT
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Problems solved by technology
However, in online testing, in order to cover the entire rim and spokes of the wheel, the number of ultrasonic probes required is extremely large, so the number of ultrasonic channels required is also extremely large, and the volume of ultrasonic electronic equipment will also increase accordingly. , resulting in increased cost
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[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0035] The present invention is an excitation signal generating channel multiplexing device for the on-line detection system of locomotive wheels. figure 1 As shown, it includes: a control module 1, an ultrasonic electronic module 2, and an ultrasonic channel switching module 3, wherein:
[0036] The control module 1 is used to generate control information, the control information at least includes: external trigger information, encoded channel switching infor...
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The embodiment of the invention discloses an automatic switching device of ultrasonic signal channels, which comprises a control module, an ultrasonic electronic module and an ultrasonic channel switching module. The automatic switching device of the ultrasonic signal channels is characterized in that: when online detection is carried out on wheels of a locomotive, the control module sends external triggering information generated by movement of the wheels to the ultrasonic electronic module, and then the ultrasonic electronic module generates an exciting signal for exciting an ultrasonic wave probe to work. Meanwhile, the control module sends channel switching information to the ultrasonic channel switching module, so that the ultrasonic channel switching module conducts the needed ultrasonic channel, and the exciting signal sent by the ultrasonic electronic module and a received probe echo signal realize detection by the conducted ultrasonic channel. The ultrasonic channel switching module automatically switches numbered ultrasonic electronic channels on the ultrasonic electronic module, thereby realizing connection of fewer ultrasonic electronic channels with lots of ultrasonic wave probes, accomplishing automatic detection of the whole wheels, and saving cost.
Description
technical field [0001] The invention relates to the technical field of on-line flaw detection of locomotive wheels, in particular to an automatic switching device for ultrasonic signal channels. Background technique [0002] At present, the on-line detection of locomotive wheels usually adopts the combination of multiple types of ultrasonic probe arrays to realize the dynamic detection of wheels, in which each ultrasonic probe is equipped with an ultrasonic channel, and the ultrasonic waves generated by the ultrasonic probe enter the interior of the wheel through the wheel tread , for ultrasonic flaw detection of locomotive wheels. When the locomotive passes through the detection area, with the movement of the wheel on the ultrasonic probe, the ultrasonic probe array combination with ultrasonic channels automatically realizes the ultrasonic flaw detection of the entire wheel circle. However, in online testing, in order to cover the entire rim and spokes of the wheel, the nu...
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Inventor 彭朝勇王黎高晓蓉赵波赵全轲王泽勇彭建平张渝胡继东雷梁
Owner CHENGDU LEAD SCI TECH CO LMT