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Electromagnetic Ultrasonic Testing System

A detection system and electromagnetic ultrasonic technology, which is used in the analysis of solids using sonic/ultrasonic/infrasonic waves, can solve the problem of low signal-to-noise ratio, and achieve the effects of reducing thermal radiation, prolonging service life, and improving signal-to-noise ratio.

Active Publication Date: 2017-06-23
田志恒 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide an electromagnetic ultrasonic detection system to solve the problem of low signal-to-noise ratio of the characteristic signal of the electromagnetic ultrasonic detection system for detecting the solidification end position of the continuous casting slab in the prior art

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Embodiment Construction

[0031] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0032] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0033] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that wh...

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Abstract

The invention provides an electromagnetic ultrasonic detection system for detecting metal objects, comprising: a signal generator; a signal processor; at least one first electromagnetic ultrasonic sensor, the first electromagnetic ultrasonic sensor is used to emit electromagnetic ultrasonic signals; at least one first electromagnetic ultrasonic sensor Two electromagnetic ultrasonic sensors, the second electromagnetic ultrasonic sensor is used to receive electromagnetic ultrasonic signals; the electromagnetic ultrasonic detection system also includes: a first cable, the signal generator is electrically connected to the first electromagnetic ultrasonic sensor through the first cable; the second cable, the second The electromagnetic ultrasonic sensor and the signal processor are electrically connected through a second cable; wherein, the first cable is a first coaxial cable that matches the coil series resonance of the first electromagnetic ultrasonic sensor, and / or the second cable is a cable that is compatible with the second electromagnetic ultrasonic sensor. The coil of the sensor is matched to the second coaxial cable in series resonance. The invention can improve the signal-to-noise ratio of electric signals transmitted in the first coaxial cable and the second coaxial cable.

Description

technical field [0001] The invention relates to the field of electromagnetic ultrasonic detection, in particular to an electromagnetic ultrasonic detection system. Background technique [0002] In the process of using electromagnetic ultrasonic technology to detect the solidification end position of the continuous casting slab, because the detected part of the continuous casting slab is in a high temperature state (about 1000 ° C), the size of the electromagnetic ultrasonic sensor is small (the gap between the rollers of the continuous casting segment Small) and other factors, which lead to the low signal-to-noise ratio of the characteristic signal of the electromagnetic ultrasonic testing system carrying the position information of the solidification end of the continuous casting slab, which in turn limits the accuracy of the electromagnetic ultrasonic testing system for detecting the solidification end position of the continuous casting slab, and limits the The electromagn...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04B22D11/14
Inventor 田志恒
Owner 田志恒
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