Multifunctional detection system and method

Abstract

The invention discloses a multifunctional detection system and method. The system comprises a detection front end; a static magnetic field generating device; an excitation probe and a receiving probe, wherein the excitation probe provides conductivity for a to-be-detected material sample and ultrasonic waves required by sound attenuation detection, and the receiving probe receives the ultrasonic waves passing through the to-be-detected material sample during sound attenuation detection; a detection electrode used for acquiring magnetoacoustic voltage signals generated in the conductivity detection process; and a control and signal processing circuit which is used for controlling the excitation probe to generate ultrasonic waves with various excitation frequencies, acquiring sound attenuation characteristics of the to-be-detected material sample under different excitation frequencies according to the ultrasonic waves received by the receiving probe under different excitation frequencies, and acquiring conductivity characteristics of the to-be-detected material sample according to the voltage signals detected by the detection electrode at different excitation frequencies. According to the multifunctional detection system and method, the conductivity and sound attenuation detection of the to-be-detected sample can be realized at the same time, the multi-modal detection of the to-be-detected sample is realized, and the obtained conductivity and sound attenuation characteristics are more accurate.

Description

technical field [0001] The invention relates to the technical field of biological material detection, in particular to a multifunctional detection system and method. Background technique [0002] The conductivity test of traditional gel imitation materials is to detect the unsolidified liquid mixture through a conductivity meter. The detection accuracy is generally not high, and it is easily affected by temperature, environment, equipment, detection probes, etc. At present, there is no standard detection method to detect the electrical properties of the condensed gel phantom in a solid state, and there is currently no instrument that can simultaneously detect the conductivity and acoustic attenuation characteristics of the gel phantom. In addition, the electrical conductivity and sound attenuation characteristics of composite materials composed of different materials or the same materials and mixed materials composed of different proportions cannot be quantitatively obtained...

AI Technical Summary

Problems solved by technology

[0002] The conductivity test of the traditional gel imitation material is to detect the liquid mixture that has not yet solidified through the conductivity meter. The detection accuracy is generally not high, and it is easily affected by temperature, environment, equipment, detection probes, etc.

At present, there is no standard detection method to detect the electrical properties of the condensed gel phantom in a solid state, and there is currently no instrument that can simultaneously detect the conductivity and acoustic attenuation characteristics of the gel phantom

In addition, the electrical conductivity and sound attenuation characteristics of composite materials composed of different materials or the same materials and mixed materials composed of different proportions cannot be quantitatively obtained, nor can they be quantitatively distinguished, let alone be measured at the same time, and it is impossible to know the ultrasonic sound quality under different frequency excitations. Sound attenuation and material conductivity

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