Evaluation of "Yuzu Skin" using the facial distortion pattern measurement device "SurfTRiDY".
The face distortion pattern measurement device allows for a more detailed analysis by displaying the "yuzu skin" surface as an inclination angle and curvature distribution in image form.
● The "yuzu skin" is captured as micro-surface distortion and displayed as inclination angle distribution images and curvature distribution images. ● High-sensitivity measurements (detecting changes in surface tilt of 1 mrad) are possible, allowing for observation of fine patterns. ● Maximum value, minimum value, and standard deviation within a specified area can be calculated. ● Map display, CG display, and CSV file output are available.
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■Measurement Principle Yuzu skin is observed by the way that extremely small surface deformations distort the appearance of the reflected object due to the principle of light leverage. To quantitatively evaluate this, a pattern of stripes projected onto a screen is captured by a television camera as it reflects off the surface of a specular object, and the distortion of the stripes corresponding to the surface deformation is analyzed (zebra pattern observation). This amount of distortion relates to the gradient of the deformation shape (the amount of surface inclination). By determining the coordinates of corresponding points on the screen at every point on the object's surface, the amount of stripe distortion is quantified and evaluated as the distribution of surface inclination angles and curvature.
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Applications/Examples of results
■Purpose Observation, recording, evaluation, and inspection of surface distortion of mirror or semi-mirror objects <Examples of targets> Press panels, painted panels, glass, plastic, films, etc. (Note) For objects with dull surfaces, applying "oil" may enhance "mirror quality," making measurement possible. ■Surface Distortion Pattern Measurement Examples Steel plate press panel Stainless steel fittings (with punch holes and dents; 30mm×100mm) Stainless steel plate (with distortion and blemishes; 200mm×300mm) Concave mirror (50mmΦ×3 pieces; curvature radius = 3,000mm, ∞, 30,000mm) CD case (transparent plastic; 125mm×140mm)
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To solve your technical challenges in a ONE-STOP manner, our team of 1,300 technical specialists will respond quickly and accurately while maintaining strict confidentiality. With bases in six locations nationwide, our experts in various fields utilize the latest analytical testing equipment to meet all your needs. We are confident that we can provide results that will satisfy you, and we would be grateful if you could give us a try.
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