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Principle of Vision Measuring Machine (VMM): How Pixels Are Converted into Real Dimensions
In a Vision Measuring Machine (VMM), the camera does not capture real-world dimensions. Instead, it acquires a two-dimensional image made up of pixels. Each pixel only represents light intensity or color information and does not contain any physical unit such as millimeters or microns.
JatenApr 28 2026
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Profile projector Common Errors, Limitations and Practical Tips
In manufacturing processes such as stamping or machining, small burrs are often present along edges. Although barely visible to the naked eye, these burrs are magnified in a profile projector. When illuminated by backlight, they may appear as sharp protrusions.
JatenApr 21 2026
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Backlight Measurement Principle and Error Mechanism
Backlight, also known as transmitted light or contour lighting, is one of the most commonly used illumination methods in profile projectors.
JatenApr 16 2026
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Automatic Vision Measuring Machine with Full-Field Imaging for High-Efficiency Inspection
In modern precision manufacturing, measurement efficiency and consistency are critical for ensuring product quality. Traditional manual inspection methods often suffer from low efficiency, operator dependency, and inconsistent results.
JatenApr 09 2026
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Automatic Video Measuring Machine Optical System Analysis: Lens, Imaging, and Lighting
The performance of an automatic video measuring machine depends on three key factors: true optical imaging, clear image quality, and stable edge detection. These are achieved through the integration of a dual-magnification telecentric lens, a high-resolution CCD camera, and an adjustable lighting system.
JatenApr 01 2026
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How to Reduce Human Error in Optical Comparator Measurement
In practical inspection work, it is common to see measurement differences when the same part is checked by different operators. This issue is especially noticeable when using an optical comparator.
JatenMar 24 2026
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HV Series Horizontal Video Measuring Machine: Efficient Precision Contour Inspection
The HV Series Horizontal Video Measuring Machine is a 2.5D precision measuring system integrating optical components, precise mechanical design, and measurement software. It is widely used in mechanical manufacturing, electronics, instrumentation, and mold industries. The system efficiently measures complex contours and high-precision dimensions for a wide range of workpieces, including templates, stamping parts, tools, terminals, and watch components, making it essential in both metrology labs and production floors.
JatenMar 17 2026
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Standard Tools for Calibration of Video Measuring Machines
In the operation of a Video Measuring Machine (VMM), measurement accuracy is a core performance indicator. High-precision measurement for electronic components, mold parts, glass, and LCD materials relies on calibration with traceable standard tools. These tools provide a reliable reference and ensure the consistency and reliability of measurement results.
JatenMar 14 2026
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Where Do Profile Projector Measurement Errors Come From: Principles and On-Site Factors
In precision manufacturing, profile projectors are widely used for dimensional inspection and contour observation. Compared to contact measurement devices, they are intuitive and flexible. However, users often notice that repeated measurements of the same workpiece can vary, and results may differ between operators.
JatenMar 04 2026
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