A mixed-mass ultrasonic online non-invasive detection method

Abstract

The invention belongs to the technical field of ultrasonic detection and discloses an ultrasonic online non-intrusive detection method for the mixing quality. The ultrasonic online non-intrusive detection method comprises the following steps: uniformly distributing n groups of ultrasonic transducers at the periphery of a mixing container; enabling each ultrasonic transducer to transmit ultrasonicwaves under the triggering of an excitation module, wherein the ultrasonic waves are received by the ultrasonic transducers through the wall surface of one side of the mixing container, the inner partof the container and the wall surface of the other side of the mixing container and are acquired by an acquisition module; putting pure water and a standard mixture sequentially in the mixing container, and recording ultrasonic signals sequentially by the acquisition module; putting a to-be-detected mixture into the mixing container, and recording an ultrasonic signal by the acquisition module inreal time; calculating relative damping coefficients of all groups of ultrasonic transducers; judging mixing state change conditions and the mixing quality of local and global mixtures according to the relative damping coefficients of single groups and multiple groups of ultrasonic transducers. According to the ultrasonic online non-intrusive detection method disclosed by the invention, non-intrusive online detection of mixing quality information of uniformity, consistency and the like of the mixture can be realized; the ultrasonic online non-intrusive detection method has the advantages of easiness in realization, low cost, fast response and the like.

Description

technical field [0001] The invention belongs to the technical field of ultrasonic detection, and more particularly relates to a mixed-mass ultrasonic online non-invasive detection method. Background technique [0002] Solid-liquid or liquid-liquid mixtures are widely used in construction, food, pharmaceutical and aerospace fields, such as slurry, concrete, solid propellant, etc. Mixing quality is an important evaluation index that reflects the production status of the final product, and online detection of mixing quality is one of the important contents to ensure product quality and production efficiency. For pharmaceutical companies, for example, the quality of slurry mixing will directly affect the efficacy of finished drugs, and the uniformity of some ingredients with side effects is more important. For solid propellants, the mixing quality directly affects the processing performance, mechanical properties and combustion performance of solid propellants, and then affects...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above defects or improvement needs of the prior art, the present invention provides an ultrasonic on-line non-invasive detection method of the mixing quality, which aims to overcome the problems existing in the mixing quality detection method of the mixture in the prior art, by measuring multiple Ultrasonic signal of position, data analysis of multiple ultrasonic signals, evaluation of quality information such as uniformity difference in container, product defects and abnormalities, etc., to achieve the purpose of ultrasonic rapid detection of mixture quality

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