Pressure distribution measuring system and method

By using pressure-sensitive color-producing composite film and complementary color lighting technology, the problem of inaccurate measurement of existing pressure-sensitive papers under subtle pressure changes is solved, and the pressure distribution measurement effect with higher contrast and faster image pickup time is achieved.

CN119714628APending Publication Date: 2025-03-28CHROMA ATE (SUZHOU) CO LTD
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Patent Information

Application Number
CN202311268570.4
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The existing pressure-sensitive paper has light colors under subtle pressure changes, resulting in overexposed during color scanning, unable to accurately reflect the measurement results of low pressure, and the scanning time is long, making it not suitable for automated testing of production lines.

Method used

The pressure-sensitive color-making composite film is used, and the pressure sensing layer containing the dyeing agent particles is used to project a beam of complementary colors through the lighting module. The imaging module captures the grayscale image, and the image processing module analyzes the grayscale distribution to interpret the pressure distribution.

Benefits of technology

It improves the accuracy of pressure distribution measurement, reduces the risk of contrast reduction, shortens the image pickup time, is suitable for automated detection, and can more accurately respond to subtle pressure changes.

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Abstract

The invention provides a pressure distribution measuring system and method. The pressure distribution measuring system comprises an illumination module, an image capturing module and an image processing module. The pressure distribution measuring method mainly comprises the following steps: firstly, providing a pressure-sensitive developing composite film, wherein a pressure sensing layer of the pressure-sensitive developing composite film comprises a plurality of dye particles corresponding to a first color; then, the pressure-sensitive color-developing composite film bears a pressure to form a first color pattern; then, projecting an illumination light beam of a second color by using the illumination module, the second color and the first color being complementary to each other in a hue ring; then, capturing the first color pattern by using an image capturing module to generate a gray scale image; and finally, analyzing relative pressure distribution by using an image processing module.
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