High precision nondestructive test material relative dielectric constant calculation method and system

Abstract

The invention provides a high precision nondestructive test material relative dielectric constant calculation method and system. The real-time changing test result of the incident angle thetai and / orthe test distance Lr is optimized so as to precisely calculate the relative dielectric constant of the material to be tested. The method comprises the following steps that a. the interface reflectioncoefficient amplitude gamma is acquired and the first relative dielectric constant epsilonr1 of the material to be tested is acquired based on the interface reflection coefficient amplitude gamma. Theerror of the relative dielectric constant can be greatly reduced through the calculation mode of the test distance optimization result, the incident angle optimization result and the incident angle and test distance synchronous optimization result and high precision of the nondestructive test material relative dielectric constant can be realized. The high precision nondestructive test material relative dielectric constant calculation method and system are easy to operate, convenient to use and high in practicality so as to have extremely high test value.

Description

technical field [0001] The invention belongs to the technical field of non-destructive testing, and in particular relates to a calculation method and system for the relative dielectric constant of high-precision non-destructive testing. Background technique [0002] Rapid development, non-destructive, and high-precision construction quality inspection technology is an important basis for intelligent construction and big data construction of construction quality, such as the compactness (or density) of asphalt pavement, the thickness of asphalt paving, and the thickness of asphalt pavement. Its construction quality and road performance have an important influence. The relevant regulations in my country recommend the use of core sampling method to measure the compactness and paving thickness of asphalt pavement. This method has the advantages of easy operation, intuitive and accurate, but it needs to destroy the original pavement, and the data points obtained are limited. [...

AI Technical Summary

Problems solved by technology

The test distance has a great influence on the relative permittivity test error, ±3% test distance error, about ±15% relative permittivity test error

[0008] At present, there is no calculation method and system that can effectively reduce the error in the market, especially a calculation method and system for the relative dielectric constant of high-precision nondestructive testing materials.

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