Pulsed Laser Material Aging Test Apparatus
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Solution Overview
Problem
Current material aging tests using man-made light sources are inefficient due to large-area, uniform output that can cause overheating and inability to focus on specific areas, and separate spectral measurement devices are needed, leading to inefficient testing and data collection.
Innovation Solution
A material aging test apparatus and method utilizing a pulsed laser with a beam expansion assembly and spectrum analyzer to project a high-energy, adjustable beam onto a sample while simultaneously measuring spectral responses, allowing for controlled, targeted aging and real-time data collection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-intensity light sources are used to increase aging test speed, then productivity is improved, but the sample may overheat causing harmful effects
Solution Approach 1:
The patent employs pulsed laser illumination instead of continuous light exposure. The laser operates in periodic pulses with controllable duty cycles, allowing high peak power density during pulses to accelerate aging while providing cooling intervals between pulses to prevent overheating and thermal damage to the sample.
Solution Approach 2:
The patent uses beam expansion and scanning mechanisms to concentrate laser energy on specific local areas of the sample rather than uniformly illuminating the entire sample. This allows targeted aging testing of specific regions with controlled energy distribution, preventing excessive heat accumulation while maintaining high aging test efficiency.
2Ease of operation
If large-area light sources are used for uniform output, then ease of operation is improved, but the ability to focus on specific areas is worsened
Solution Approach 1:
The patent divides the sample into multiple scan regions and uses a scanning mechanism to sequentially illuminate different areas. The beam expansion assembly can be adjusted to cover specific regions, and the scanning system systematically moves the laser beam across the sample surface, enabling both uniform coverage when needed and focused illumination on specific areas when required.
3Measurement precision
If separate spectral measurement apparatus is used, then measurement precision is improved, but productivity is worsened due to separate testing
Solution Approach 1:
The patent integrates a spectral measurement system directly into the aging test apparatus. The spectrum analyzer is coupled with the pulsed laser system, allowing simultaneous acquisition of aging test data and spectral response measurements. This combined system eliminates the need to separately transport samples between devices, maintaining measurement precision while significantly improving testing efficiency and productivity.
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 accelerates material aging without overheating and enables simultaneous spectral measurement, providing more efficient and effective testing by adjusting power density and wavelength, thereby improving the evaluation of material aging resistance.
Implementation Method 1
a pulsed laser (130) for transmitting a first beam
Implementation Method 2
a beam expansion assembly (140) for converting the first beam into a second beam and projecting the second beam onto an object (200)
Implementation Method 3
a spectrum analyzer (170) for measuring a spectral response which is generated from the object (200) by the projection of the second beam
Data Source
AI summary
A material aging test apparatus and method thereof are provided. The aging apparatus includes a pulsed laser, a beam expansion assembly, a platform, and a spectrum analyzer. The pulsed laser is used for transmitting a first beam. The beam expansion assembly is used for converting the first beam into a second beam and projecting the second beam onto an object. The platform is used for carrying the object. The spectrum analyzer is used for measuring the spectral response which is generated from the object by the projection of the second beam.