Working principle and application fields of image measuring instrument
Working principle and application fields of image measuring instrument
Image measuring instrument, also known as two-dimensional image measuring instrument, is a high-precision measuring equipment based on CCD digital imaging technology and computer image processing technology. It enlarges the image of the workpiece under test through a high-resolution optical lens and transmits it to the computer. It uses professional measurement software to analyze and process the image to obtain the dimensional and geometric tolerance data of the workpiece.
Working principle
The core working principle of the image measuring instrument can be summarized as: optical imaging → digital acquisition → image processing → data analysis. First, the light source illuminates the workpiece to be measured, and the contour of the workpiece is imaged onto the CCD sensor through the zoom optical lens; then, the CCD sensor converts the optical signal into a digital signal and transmits it to the computer; finally, the measurement software performs edge recognition, contour extraction, size calculation and other processing on the image to obtain the measurement results.
Core components
- Optical system: Including high-resolution CCD camera, continuous zoom lens and lighting source, which determines the imaging quality and measurement accuracy.
- workbench system: Composed of precision guide rails and grating rulers to achieve precise positioning of the X/Y/Z axis.
- Measurement software: Responsible for image processing, data analysis, report generation and other functions, it is the brain of the image measuring instrument.
Application areas
Image measuring instruments are widely used in 3C electronics (mobile phone middle frames, PCB board inspection), automotive parts (precision gears, bearing inspection), precision molds (mold steel parts, electrode inspection), medical equipment (orthopedic implants, surgical instrument inspection) and other industries.
