Calibration Device for Waterproof Testing Equipment
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Solution Overview
Problem
Existing test equipment from different vendors yields inconsistent and inaccurate results due to varying performance and repeated exposure to high water pressure during calibration, making it difficult to determine the waterproof level of electronic devices accurately.
Innovation Solution
A test device comprising stacked metal plates with a waterproof mesh sandwiched between them, where the waterproof level is adjusted by modifying the mesh's thickness, material, hole sizes, or the number of layers and plates, allowing for calibration using a standard test device and equipment under calibration to achieve consistent results.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the same device under test is used for calibration in both test equipment, then the calibration process can be performed, but the device experiences repetitive high water-pressure which causes variation in leakage performance and reduces calibration accuracy
Solution Approach 1:
The patent extracts the calibration function from the device under test and implements it in a dedicated calibration device with controlled leakage characteristics. This separates the calibration standard from the test subject, allowing the calibration device to remain stable under repeated high water-pressure exposure while providing consistent reference values for calibrating different test equipment.
Solution Approach 2:
The calibration device allows adjustment of leakage parameters (such as aperture size or number of apertures) to match different waterproof levels. This enables the same calibration device to provide accurate calibration references across various waterproof等级 without requiring different physical devices, while maintaining stable leakage performance through controlled parameter settings.
2Adaptability or versatility
If test equipment from different vendors are used, then more testing options are available, but the results are inconsistent and inaccurate due to varying performance and different testing criteria
Solution Approach 1:
The calibration device serves as a universal reference standard that can be used to calibrate multiple different test equipment from various vendors. By providing a single, standardized calibration reference with known and controllable leakage characteristics, it enables consistent calibration across different testing systems, ensuring result consistency while maintaining vendor diversity.
3Measurement precision
If a complex calibration process is used to improve accuracy, then calibration precision may improve, but the device complexity and calibration time increase
Solution Approach 1:
The calibration device segments the calibration reference into distinct, controllable components (such as individual apertures or adjustable elements). This allows for simple adjustment of leakage characteristics by changing one or a few parameters rather than requiring complex recalibration procedures, maintaining high accuracy while reducing process complexity.
Data Source
AI summary
A test device and a calibration method thereof are disclosed. The test device for calibrating a test equipment, which is used to test a waterproof level of an electronic apparatus, comprises: at least two plates stacked together, in corresponding positions of which holes are formed; and at least one layer of waterproof mesh, which is sandwiched between two adjacent plates and covers the holes.