Metal anti-fake identification method based on ultrasonic backscattering attenuation coefficient spectrum
A technology of ultrasonic backscattering and attenuation coefficient, which is applied in the direction of using sound wave/ultrasonic wave/infrasonic wave to analyze solids and prepare samples for testing. It can solve the problems of metal product damage, high cost, and complicated identification methods, and achieve low cost, The effect of fast recognition speed and easy online identification
Inactive Publication Date: 2015-02-04
SHAANXI NORMAL UNIV
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Abstract
The invention relates to a metal anti-fake identification method based on an ultrasonic backscattering attenuation coefficient spectrum. The fake identification on a metal material is completed through five steps of pre-treating a reference sample, acquiring a time-domain signal, calculating the attenuation coefficient spectrum of the reference sample, calculating self-relevance coefficients of the attenuation coefficient spectrum in the reference sample, and calculating relevant coefficients between the sample to be tested and the attenuation coefficient spectrum of the reference sample. By adopting the metal anti-fake identification method, a metal product does not need to be damaged and is not damaged in the identification process, so that non-destructive identification is achieved; in addition, compared with a conventional physical and chemical identification method, the result that whether the metal is true or fake can be obtained through independent identification, and moreover the identification result is accurate and reasonable, the identification method is relatively simple, the cost is low, the identification speed is fast, on-line identification is easy to achieve, and popularization and application are facilitated.
Application Domain
Analysing solids using sonic/ultrasonic/infrasonic wavesPreparing sample for investigation
Technology Topic
PhysicsPre treatment +8
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- Experimental program(3)
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PUM
Property | Measurement | Unit |
Thickness | 15.0 | mm |
Diameter | 47.1 | mm |
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