A kind of electromagnetic ultrasonic probe with conformable and variable curvature and its measurement method
An electromagnetic ultrasonic, variable technology, applied in the direction of measuring devices, measuring instrument components, transmitting sensing components using wave/particle radiation devices, etc., to achieve the effect of simple and fast operation, high spatial measurement resolution, and no couplant required.
Active Publication Date: 2021-10-15
DALIAN UNIV OF TECH
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[0006] In order to solve the problems in the existing methods and consider the ultrasonic measurement requirements of curved surface parts, the present invention provides an electromagnetic ultrasonic probe with variable curvature along with the shape and its measurement method
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[0032] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art will belong to the scope of the present invention without paying in the premise of creative labor.
[0033] like Figure 1 - Figure 2 As shown, the flexible magnet 2 of different structures is selected according to five different flexible excitation coils, and five electromagnetic ultrasonic probes 3 facing surface-facing parts non-destructive detection are designed. In this embodiment, the spiral coil (such as the second runway " figure 1 The middle (b) is shown as an example, and the flexible magnet corresponding to the runway spiral coil (such as figure 2 Displayed in (b)).
[0034] Considering tha...
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The invention belongs to the technical field of ultrasonic measurement and provides an electromagnetic ultrasonic probe with variable curvature along with the shape and a measurement method thereof. The probe includes a flexible excitation coil, a flexible magnet, a flexible housing and an MMCX connector. Firstly, five configurations of flexible excitation coils are designed; secondly, five corresponding magnet distribution structures are designed; then, flexible silicone shells are designed, and flexible coils and flexible magnets are integrated; finally, electromagnetic ultrasonic probes are controlled by fixtures to ensure automation During the measurement process, it always fits closely with the material surface. The present invention designs five different types of electromagnetic ultrasonic probes with shape-dependent and variable curvature, which have compact structure, high spatial measurement resolution, no coupling agent, simple and fast operation; ensure that the ultrasonic sound axis is consistent with the local standard of the measured surface, The measurement accuracy and signal-to-noise ratio are improved; different measurement parameters can be selected and optimized for application, and ultrasonic measurement of multiple physical geometric parameters such as thickness, stress and defects can be realized.
Description
Technical field [0001] The present invention belongs to the field of ultrasound measurement, and in particular, the present invention relates to an electromagnetic ultrasonic probe having a variable curvature and a measurement method thereof. Background technique [0002] Surface parts are a type of typical parts in high-end equipment such as aerospace. To accurately obtain critical information such as manufacturing quality, material characteristics and safety life, often use ultrasound method to quantitatively evaluate it in processing processes or enabled processes. Ultrasound As a common non-destructive testing method, it has the advantages of wide application range, fast measurement, simple device, low cost, safe and harmless, and has been widely used in multi-physical geometric parameters such as thickness, defects and residual stress. [0003] In order to avoid the impact of curvature of the curved part on the ultrasound propagation, the current research is mostly detected ...
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IPC IPC(8): G01D5/48G01D11/00
CPCG01D5/48G01D11/00
Inventor 刘海波刘天然王永青杨佩勋薄其乐李特刘阔
Owner DALIAN UNIV OF TECH