Principle of Image Measuring Instrument
1. Optical Magnification: Optical magnification imaging of the object to be measured by means of a microscope or a high-magnification lens (e.g. 30-500x zoom).
2. Image Acquisition: Optical images are converted into electrical signals using a CCD/CMOS sensor and transmitted to a computer.
3. Digital Processing: De-noise, edge detection, feature extraction (e.g., circle, line, angle) and other processing of the image through specialized software.
4. Geometric Calculation: Based on the principle of spatial geometry, combined with the grating scale displacement data, calculate the object size, shape and position.
5. Autofocus: drive the lens or sensor by Z-axis motor, combined with machine vision algorithm to realize micron-level accurate focusing.
6. Calibration and Compensation: Utilizing standard parts to calibrate optical aberration, temperature error, etc. to ensure measurement accuracy.
Principle of Image Measuring Instrument (Flash Meter)
1. Telecentric imaging: adopts 2000w pixels dual telecentric lenses to eliminate parallax and ensure distortion-free image under large field of view.
2. Intelligent Algorithm: Rely on image matching and 3D reconstruction algorithm, support multi-size simultaneous measurement and one-key flash measurement.
3. Fast processing: accelerate image processing by FPGA or GPU to realize real-time online measurement.
4. Automation: Support multi-product and multi-feature parallel measurement, and automatically generate parameter evaluation report.
Image Measuring Instrument Technology Advantage:
① Large Stroke Measurement: Supports global inspection of large-size workpieces (e.g. molds, automotive parts).
② Composite function: contact probe can be integrated to realize complementary measurement of 2D image and 3D coordinates.
Image Measuring Instrument (Flash Meter) Technical Advantages:
① Telecentric optical path: avoid edge distortion of traditional lenses, suitable for high-precision industrial inspection.
② Online real-time: support production line integration to achieve 100% full inspection, such as PCB solder joints, cell phone glass size monitoring.
Selection Recommendations
If you need to measure large workpieces, complex three-dimensional contours, or very high requirements for measurement accuracy (such as mold development, reverse engineering of precision parts), then choose the image measuring instrument; if you need to quickly batch testing of small precision parts (such as screws, gears, electronic components), or for the convenience and efficiency of the operation of a higher demand for the choice of image measuring instrument.
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