Multi-Function Gemstone Tester Using Light Guide and Conductive Probe
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Solution Overview
Problem
The diamond industry faces challenges in distinguishing between natural and synthetic diamonds, as existing gemstone testers are inefficient, require specialized knowledge, and cannot accurately differentiate between various types of precious stones, leading to potential fraudulent sales and consumer confusion.
Innovation Solution
A multi-functional precious stone testing apparatus that uses a LED light unit to provide illumination without heat transfer, UV light sources for fluorescence measurement, and a conductive probe to determine thermal and electrical conductivity, allowing for accurate classification of diamonds, Moissanite, and other stones, including natural and synthetic diamonds, through differential absorption and refraction analysis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If conventional illumination units are used to illuminate the testing probe, then the illumination intensity is sufficient, but heat is transmitted to the conductive probe affecting measurement accuracy
Solution Approach 1:
A light guide is introduced as an intermediary component between the illumination unit and the conductive probe. The light guide transmits light from the illumination unit to illuminate the testing area while preventing heat transmission to the conductive probe, thus resolving the contradiction between sufficient illumination and measurement accuracy.
Solution Approach 2:
The harmful heat transmission is extracted or separated from the illumination function. By using a light guide to deliver only light without heat to the probe area, the harmful thermal effect is taken out while preserving the useful illumination effect.
2Measurement precision
If specialized accreditation institutions and instruments are used to identify diamonds, then identification accuracy is high, but the cost is relatively high and accessibility is limited
Solution Approach 1:
The testing apparatus is designed with multi-functionality, integrating thermal conductivity detection, electrical conductivity detection, and fluorescence detection into a single device. This allows accurate identification of natural vs. synthetic diamonds without requiring multiple specialized instruments or accreditation institutions.
Solution Approach 2:
Multiple detection functions (thermal conductivity, electrical conductivity, fluorescence) are merged into one integrated testing apparatus. This combination provides comprehensive diamond identification capabilities while reducing the need for multiple separate specialized instruments.
3Productivity
If artificial diamonds are produced synthetically, then production cost is low and quantity is high, but differentiation from natural diamonds becomes difficult
Solution Approach 1:
The apparatus detects and compares multiple physical parameters (thermal conductivity, electrical conductivity, fluorescence characteristics) to differentiate natural diamonds from synthetic ones. By analyzing changes in these parameters, the system can accurately distinguish between the two types despite their visual similarities.
Solution Approach 2:
Traditional mechanical or visual inspection methods are replaced with scientific detection methods based on thermal, electrical, and optical properties. This substitution enables accurate differentiation between natural and synthetic diamonds that cannot be achieved through conventional observation.
4Ease of operation
If existing gemstone testers are used, then basic testing function is provided, but they require specialized knowledge and cannot accurately differentiate various stone types
Solution Approach 1:
The testing apparatus provides multiple detection functions (thermal conductivity, electrical conductivity, fluorescence) in one device, enabling accurate differentiation of various gemstone types including diamonds, Moissanite, and other stones without requiring users to have specialized knowledge or use multiple separate instruments.
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 apparatus provides quick, accurate, and easy-to-use identification of precious stones, reducing the risk of fraudulent sales and enhancing consumer protection by distinguishing between natural and synthetic diamonds, as well as other types of stones, with low power consumption and environmental sustainability.
Implementation Method 1
a LED light unit for providing an illumination at the conductive probe for determining thermal and/or electrical conductivity when the conductive probe contacts with the testing object without substantially transmitting heat from the LED light unit to the conductive probe
Implementation Method 2
determine thermal and/or electrical conductivity when the conductive probe contacts with the testing object
Implementation Method 3
determine thermal and/or electrical conductivity when the conductive probe contacts with the testing object
Data Source
AI summary
A multi-functional precious stone testing apparatus includes a microcontroller, a measuring unit for measuring properties of the testing object, and a functional unit. The measuring unit is arranged to measure one of a combination of ultraviolet and infrared distributions of the testing object and a combination of thermal and electrical conductivities of the testing object. The microcontroller analyzes a result from the measuring unit to generate a test result of the testing object, wherein the microcontroller includes a communication unit for connecting with an electronic device to transmit the test result thereto. The functional unit includes a voice indicator that generates a voice indication signal of the test result.