Gemstone Testing Apparatus Light Absorption Thermal Conductivity
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Solution Overview
Problem
Existing gemstone testing apparatuses face challenges in accurately differentiating between diamonds and moissanite due to heat interference from LED light units and require multiple devices for various tests, leading to inefficiency and potential inaccuracies.
Innovation Solution
A handheld gemstone testing apparatus with a light absorption test using multiple UV light sources and a photodetector to differentiate between diamonds and moissanite based on light reflection, combined with thermal conductivity and electrical conductivity tests to categorize gemstones accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If LED light unit is positioned away from the tip end of the probe casing, then heat from the LED light unit is prevented from being transmitted toward the conductive probe, but the light intensity for illuminating the testing end portion is reduced
Solution Approach 1:
The patent introduces an optical fiber as an intermediary element to transmit light from the LED light unit to the testing end portion of the conductive probe. The optical fiber allows the LED to be positioned away from the probe tip (reducing heat transmission) while still providing sufficient light intensity at the testing location through optical signal transmission.
2Measurement precision
If multiple separate testing devices are used for thermal conductivity, electrical conductivity, and light absorption tests, then each test can be performed with specialized equipment, but the device complexity and number of devices required increases
Solution Approach 1:
The patent combines multiple testing functions (thermal conductivity testing, electrical conductivity testing, and light absorption testing) into a single integrated gemstone testing apparatus. The device integrates a conductive probe with UV light sources, photodetectors, and control circuits, allowing all three types of tests to be performed using one unified device rather than requiring separate specialized equipment for each test type.
Solution Approach 2:
The gemstone testing apparatus is designed as a universal device capable of performing multiple testing functions simultaneously or sequentially. The single apparatus includes integrated components for thermal conductivity measurement, electrical conductivity measurement, and light absorption measurement, making it a multi-functional tool that replaces multiple separate testing devices.
3Measurement precision
If UV light sources are positioned close to the test probe, then light absorption testing is more effective, but heat interference with thermal conductivity measurements increases
Solution Approach 1:
The patent segments the lighting function from the thermal testing function by using optical fibers to deliver UV light to the probe tip while keeping the UV LED sources separate from the thermal conductivity sensing elements. This spatial segmentation allows UV light sources to be positioned close to the test area for effective light absorption testing without causing significant heat interference with thermal conductivity measurements.
Solution Approach 2:
The patent uses optical fibers as intermediaries to transmit UV light from the light sources to the testing location. This allows the UV sources to be positioned optimally for light absorption testing while the optical fiber delivers the light energy without significant heat transfer to the thermal conductivity measurement area, thus minimizing thermal interference.
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 accurate differentiation between diamonds and moissanite using light absorption tests and combines thermal and electrical conductivity tests to determine gemstone categories efficiently, reducing the need for multiple devices and improving testing accuracy.
Implementation Method 1
a light absorption test using multiple UV light sources and a photodetector to differentiate between diamonds and moissanite based on light reflection
Implementation Method 2
combined with thermal conductivity and electrical conductivity tests to categorize gemstones accurately
Implementation Method 3
combined with thermal conductivity and electrical conductivity tests to categorize gemstones accurately
Data Source
AI summary
The application provides an improved gemstone testing apparatus for testing a gemstone specimen. The gemstone testing apparatus includes a handheld casing, a processor unit, a first gemstone test device, a second gemstone test device, and a display unit. The first gemstone test device includes a first test probe and a thermal conductivity test module. The second gemstone test device includes a second test probe and a light absorption module.