Optical Testing Probe for Nondestructive Meat Quality Analysis
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Solution Overview
Problem
Traditional methods for testing the quality of fresh raw meat are inefficient, destructive, and costly, making it difficult to ensure the quality and safety of this perishable product, while existing nondestructive testing technologies, such as spectrometry, are expensive and impractical for widespread use due to high costs and maintenance requirements.
Innovation Solution
An optical testing system comprising a testing probe with multiple spectrum photodiodes emitting monochromatic light of different wavelengths, a collecting unit for signal light reflection, and a processing unit for converting and amplifying signals to determine quality parameters, allowing for rapid, nondestructive, and cost-effective quality assessment of fresh raw meat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional testing methods are used for fresh raw meat quality assessment, then testing can be performed with simple equipment, but the testing efficiency is low, time consumption is high, and product destruction occurs
Solution Approach 1:
The patent replaces traditional mechanical testing methods with an optical testing system that uses light interaction with meat samples. The system employs light sources emitting at specific wavelengths and detectors to measure optical properties, enabling rapid nondestructive quality assessment without physical contact or sample destruction, thereby dramatically improving testing efficiency and reducing time requirements
Solution Approach 2:
The patent introduces optical properties (absorbance, reflectance, transmittance) as intermediary parameters that correlate with meat quality indicators such as water content, fat content, and freshness. By measuring these optical intermediaries through nondestructive optical methods, the system indirectly assesses quality without direct mechanical intervention, enabling rapid evaluation
2Reliability
If spectrometer-based nondestructive testing is used for fresh raw meat, then product destruction is avoided, but the equipment cost, volume, and maintenance cost become prohibitively high
Solution Approach 1:
The patent segments the spectral measurement function into multiple discrete light sources, each emitting at specific characteristic wavelengths relevant to different meat quality parameters. Instead of using a single complex spectrometer that scans all wavelengths, the system employs multiple simple LED or laser diodes at fixed wavelengths (e.g., 450nm, 530nm, 630nm, 850nm), dramatically reducing equipment complexity and cost while maintaining nondestructive testing capability
Solution Approach 2:
The patent replaces expensive, maintenance-intensive spectrometers with inexpensive, solid-state light-emitting diodes (LEDs) or laser diodes that have no moving parts, require minimal maintenance, and offer long operational life. These simple optical components can be easily replaced if needed, providing a cost-effective alternative to sophisticated spectrometer systems while preserving the nondestructive testing function
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
The system enables rapid, cost-effective, and nondestructive testing of fresh raw meat quality by selecting characteristic wavelengths for each quality parameter, providing accurate and efficient results, thus overcoming the limitations of traditional testing methods and making high-quality testing accessible.
Implementation Method 1
said testing probe comprises a plurality of spectrum photodiodes, each of said spectrum photodiodes is used for emitting monochromatic light
Implementation Method 2
said collecting unit is used for collecting multi-way signal light obtained after the monochromatic light emitted by said plurality of spectrum photodiodes is reflected by said sample surface
Implementation Method 3
said photoelectric conversion module being used for converting the multi-way signal light collected by said collecting unit respectively to multi-way electrical signals
Data Source
AI summary
An optical testing system includes: a testing probe, a collecting unit, and a processing unit, wherein the testing probe includes a plurality of spectrum photodiodes used for emitting and casting monochromatic light to a sample, wherein the wavelength of the light emitted by at least one spectrum photodiode is different from that of any other. The collecting unit collects multi-way signal light obtained after the emitted monochromatic light is reflected by the sample surface. The processing unit includes a photoelectric conversion module, an adding module and a testing module. The photoelectric conversion module converts the collected multi-way signal light respectively to multi-way electrical signals. The adding module performs an adding operation for the multi-way electrical signal to obtain an operation result. The testing module tests a quality parameter of the sample according to the operation result, and outputs a testing result.