Gemstone Tester LED Illumination Heat Isolation
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Solution Overview
Problem
Conventional gemstone testers require user proficiency, are prone to testing errors due to insufficient sensitivity and improper operation, can only identify specific gemstones, and fail to measure fluorescence, necessitating multiple devices for different types of stones.
Innovation Solution
A multi-functional precious stone testing apparatus with a LED light unit that provides illumination without heat transfer to the conductive probe, allowing for thermal and electrical conductivity measurement, and includes a UV light source for fluorescence analysis, operated independently of the conductive probe, with a simple touch control interface and LED indicators for easy classification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If an illumination unit is positioned close to the testing probe to provide illumination at the probe tip, then illumination intensity is improved, but heat is transmitted to the conductive probe affecting measurement accuracy
Solution Approach 1:
The illumination function is segmented from the probe assembly and integrated into the hand-held casing instead. The LED light unit is positioned in the hand-held casing away from the probe, eliminating heat transmission to the conductive probe while still providing illumination through optical pathways.
Solution Approach 2:
A light guide or optical pathway acts as an intermediary to transmit illumination from the LED light unit in the hand-held casing to the probe tip area without direct thermal contact. This mediator allows light transmission while blocking heat transfer.
2Adaptability or versatility
If a conventional gemstone tester is used, then thermal conductivity measurement is achieved, but the device cannot measure fluorescence requiring a separate tester
Solution Approach 1:
The gemstone testing device is designed with multi-functionality, integrating both thermal conductivity measurement (through the conductive probe) and fluorescence measurement (through the UV light source) into a single device. This allows the same apparatus to perform multiple testing functions without requiring separate testers.
Solution Approach 2:
The illumination unit and UV light source are merged with the conductivity testing apparatus. The LED light unit provides visible illumination for probe positioning, while the UV light source provides ultraviolet illumination for fluorescence measurement, combining multiple functions in one integrated system.
3Ease of operation
If the LED light unit is positioned close to the probe for illumination, then ease of operation is improved, but heat interference with the conductive probe increases
Solution Approach 1:
The heat-generating LED light unit is extracted from the probe assembly and repositioned in the hand-held casing. This separation removes the heat source from proximity to the conductive probe, preventing thermal interference with measurements while maintaining operational ease through proper lighting of the testing area.
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 accurate classification of gemstones like Moissanite, diamond, metal, and other stones with reduced testing errors, while preventing heat interference and simplifying operation, allowing for simultaneous conductivity and fluorescence measurement in a single device.
Implementation Method 1
a LED light unit for providing an illumination at the conductive probe for determining thermal and/or electrical conductivity
Implementation Method 2
a UV light source for generating a UV light beam toward the testing object to measure the fluorescence of the testing object
Implementation Method 3
a testing probe for determining a thermal conductivity of the gemstone such as diamond
Implementation Method 4
an electrical conductivity of moissanite in order to classify the gemstone by its physical properties
Data Source
AI summary
A multi-functional precious stone testing apparatus includes a portable housing, a testing unit, and an indication unit. The portable housing includes a hand-held casing and a probe casing extended from a front end of the hand-held casing. The testing unit includes a conductive probe having a testing end portion extended out of a tip end of the probe casing for contacting a testing object to determine a conductivity of the testing object. The indication unit includes a LED light unit received in the hand-held casing for illuminating the testing end portion of the conductive probe during testing, wherein the LED light unit is positioned away from the tip end of the probe casing for preventing heat generated from the LED light unit being transmitted toward the conductive probe to affect an accurate measurement for the conductivity of the testing object.