Container Content Analysis via Complex Impedance
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Solution Overview
Problem
Current methods, such as X-ray examination, are inadequate for determining the contents of containers like bottles as they cannot distinguish between organic materials and fail to analyze sealed containers without forced opening, necessitating a non-destructive analysis solution.
Innovation Solution
A device using electromagnetic waves to measure the complex impedance of container contents across various frequencies, comparing the results to reference values to identify the nature of the contents and generate alarms for deviations, employing dielectric properties like dipole polarization to analyze liquids within glass or plastic bottles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Difficulty of detecting and measuring
If X-ray examination is used to analyze container contents, then examination capability is provided, but the ability to distinguish between organic materials is lost
Solution Approach 1:
The patent applies parameter changes by utilizing multiple electromagnetic frequencies to probe different dielectric properties of materials. By measuring complex impedance across a spectrum of frequencies, the system can distinguish between organic and inorganic materials based on their unique dielectric responses, thereby resolving the limitation of X-ray's inability to differentiate organic materials.
2Loss of information
If forced opening is used to analyze sealed container contents, then content analysis becomes possible, but non-destructive examination is lost
Solution Approach 1:
The patent replaces the mechanical action of forced opening with an electromagnetic field-based measurement system. By measuring the complex impedance of the container contents through electromagnetic waves at multiple frequencies, the system obtains detailed compositional information without physically opening the container, thus maintaining container integrity while achieving content analysis.
3Device complexity
If single frequency measurement is used, then measurement simplicity is maintained, but identification accuracy of content nature deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the electromagnetic spectrum into multiple discrete frequency components for measurement. Instead of using a single frequency, the system measures complex impedance at multiple frequencies to capture different aspects of the material's dielectric properties, enabling more accurate identification of content nature while managing device complexity through systematic frequency sampling.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables non-destructive, precise identification of container contents, including liquids, by measuring complex impedance across a range of frequencies, providing accurate information on the nature of the contents without opening the containers, enhancing safety and efficiency in manufacturing and security applications.
Implementation Method 1
Dielectric materials exhibit four basic polarizations: electronic, ionic, dipole and migrational. Each type of polarization is characterized by a set-up time, called rise time.
Implementation Method 2
Dipole polarization is characteristic of polar dielectrics (such as water). Dipole polarization, unlike electronic and ionic polarizations, which have no inertia, persists for some time after the extinction of an excitation.
Data Source
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AI summary
The present invention relates to a device for analyzing the composition of the contents of a container comprising: means (40) for emitting/receiving an electromagnetic field with variable frequency over a determined frequency range, means (22) for supporting a container (R) whose contents are to be analyzed, adapted to ensure precise relative positioning between the emitting/receiving means (40) and the container (R), means (50) capable of measuring the complex impedance of the emitting/receiving means influenced by the load constituted by the container (R) and its contents, representative of the complex dielectric characteristics of the container and its contents, and means (50) capable of providing information related to the measured complex impedance and consequently to the nature of the contents of said container.