Array eddy current and phased array ultrasonic composite detection probe
A technology for detecting probes and phased arrays, which is applied to the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and measuring devices, which can solve problems such as low detection efficiency and large errors in detection results
Pending Publication Date: 2021-01-29
XIAN THERMAL POWER RES INST CO LTD
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[0005] The purpose of the present invention is to overcome the shortcomings of large detection result errors and low detection efficiency in the above prior art when parts are detected, and to provide a detection probe combined with array eddy current and phased array ultrasonic
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[0026] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.
[0027] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...
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Abstract
The invention belongs to the field of nondestructive testing, and discloses an array eddy current and phased array ultrasonic composite detection probe which comprises a shell; an eddy current coil array composed of two rows of staggered eddy current coils is arranged on the inner wall of one side of the shell; each eddy current coil is provided with a first wire, one end of the first wire is connected with the eddy current coil, and the other end of the first wire is connected with a multiplexer arranged on the outer wall of the shell; a plurality of first piezoelectric wafers are arranged onone side of the eddy current coil array, and a plurality of first piezoelectric wafers are longitudinally arranged or transversely arranged in a linear array; each first piezoelectric wafer is provided with a second wire, one end of each second wire is connected with the positive electrode of the corresponding first piezoelectric wafer, and the other end of each second wire is connected with a first interface formed in the outer wall of the shell. An array eddy current probe and a phased array ultrasonic probe are integrated on the same probe, so that detection of surface and near surface defects and internal defects can be realized only by one-time detection, and high surface and near surface resolution is realized.
Description
technical field [0001] The invention belongs to the field of non-destructive testing and relates to a detection probe combined with array eddy current and phased array ultrasonic. Background technique [0002] The array eddy current probe is based on the traditional single-coil eddy current probe, by integrating multiple coils on one probe to realize large-area and high-efficiency scanning. The commonly used array eddy current probe adopts time-sharing multi-excitation transmitting and receiving array eddy current detection technology. During the detection process, each coil in the array eddy current probe is sequentially excited, and at the same time, the adjacent coil is used as the receiving coil to receive the eddy current signal, so as to realize the detection of the workpiece surface. Large-area rapid scanning has the advantages of insensitivity to lift-off, high signal-to-noise ratio, and insensitivity to defect directionality. [0003] The phased array ultrasonic te...
Claims
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IPC IPC(8): G01N27/904G01N27/9013G01N29/24G01N29/26G01N29/04
CPCG01N27/904G01N27/9013G01N29/2437G01N29/262G01N29/043G01N2291/023G01N2291/0289G01N2291/106Y02E30/30
Inventor 张炯肖俊峰高松南晴李永君高斯峰唐文书
Owner XIAN THERMAL POWER RES INST CO LTD