Air Micrometer for Polymer Battery Packaging Thickness Measurement
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Solution Overview
Problem
Current methods for measuring the thickness of polymer battery packaging materials and sealing parts are inefficient, with low measurement rates, reduced reproducibility, and lack of accuracy, and often leave a contact trace on the object, making it difficult to identify thickness distributions effectively.
Innovation Solution
An air micrometer with a target object accommodation slot and an air spray unit that sprays air through a nozzle to measure the thickness of polymer battery packaging materials and sealing parts without physical contact, allowing for high measurement rates, excellent reproducibility, and superior accuracy, while identifying thickness distributions on specific lines or planes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a contact micrometer is used to measure thickness, then measurement can be performed, but the measurement speed is slow and reproducibility is reduced
Solution Approach 1:
The patent replaces the mechanical contact micrometer system with an air jet-based measurement system. The air micrometer uses a focused air jet to interact with the workpiece surface, measuring thickness through air flow characteristics rather than mechanical contact. This substitution eliminates the friction and contact variability inherent in mechanical micrometers, achieving both high measurement speed and excellent reproducibility simultaneously.
2Measurement precision
If a contact micrometer is used to measure thickness, then thickness can be measured, but a contact trace remains on the measured object reducing accuracy
Solution Approach 1:
The invention substitutes mechanical contact measurement with non-contact air jet measurement. The focused air jet interacts with the workpiece surface without physical contact, eliminating the contact trace that would otherwise be left by a mechanical micrometer probe. This enables accurate measurement of delicate surfaces without contamination or damage.
Solution Approach 2:
The patent employs a pneumatic system using a focused air jet as the measurement probe. Compressed air is directed through a nozzle to create a concentrated air stream that interacts with the workpiece surface. The air jet's behavior (flow rate, pressure, dispersion) changes in response to the workpiece thickness, providing measurement data without mechanical contact.
3Loss of information
If many measurement points are measured to identify thickness distribution, then thickness distribution can be identified, but the measurement process becomes time-consuming
Solution Approach 1:
The patent transitions from point-by-point measurement in one dimension to area-wide measurement in two dimensions. The focused air jet can be scanned across the workpiece surface, and by measuring multiple points along a line or area, the system rapidly builds up a thickness distribution map. This dimensional approach allows comprehensive thickness distribution information to be obtained much faster than traditional sequential point measurement.
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 air micrometer enables high-speed, accurate, and reproducible measurements of polymer battery packaging materials and sealing parts without leaving a contact trace, improving the identification of thickness distributions and enhancing the inspection of manufactured products.
Implementation Method 1
an air spray unit having a nozzle that is opened in the bottom surface or the ceiling surface to spray air toward the target object accommodated between the bottom surface and the ceiling surface
Data Source
AI summary
The present invention relates to an air micrometer. The air micrometer includes a target object accommodation slot having a bottom surface and a ceiling surface to accommodate at least one portion of the target object between the bottom surface and the ceiling surface, and an air spray unit including a nozzle opened in the bottom surface or the ceiling surface to spray the air onto the target object that is accommodated between the bottom surface and the ceiling surface.