Technology and Development Trends of Fully Automatic Video Measurement Instruments

As a visual detection technology, image measurement instrument technology must complete quantitative analysis and measurement. Measurement precision has always been a key indicator value for the pursuit of perfection in this technology. Image measurement instrument system software generally uses image sensor devices such as CCD (positive charge coupled components) to obtain image information, transform it into analog signals, and collect them into electronic computers. Then, image processing technology is used to solve the data image data signal. Obtain various images as needed. According to the application of correction techniques, the image specification information in the final image plane coordinates is transformed into specific specification information in the world coordinate system, thereby completing the calculation of specifications, appearance, and positional deviations.

In recent years, due to the rapid development trend of industrial production and the improvement of production and processing technology, there have been many products with two extreme specifications, namely larger and smaller sizes, for fully automatic coordinate measuring machines. For example, measuring the external specifications of airports, important components of large machinery, such as high-speed trains, and critical value specifications of small components, are used in the miniaturization development trend of various equipment. The measurement of important micro specifications, such as microelectronics and microbiology technology, has created new daily tasks for detection technology. Image measurement instrument technology has a wider range of measurement categories. It is very difficult to apply traditional mechanical equipment measurement in both large and small categories. Image measurement instrument technology can produce a certain proportion of the measured object based on precision regulations. Reduce or increase in size for daily tasks that cannot be completed by mechanical equipment measurements. Therefore, whether it is large-scale measurement or small-scale measurement, the key benefits of image measurement instrument technology are self-evident. Generally speaking, components with specifications ranging from 0 millimeters to 10 millimeters are referred to as small components, which are internationally defined as mesoscale components. This type of component has a high precision requirement, usually within the range of μ M-level, complex construction, traditional inspection methods cannot consider measurement. Image measurement instrument system software has become a common method for measuring small components. The main task is to use optical lenses with sufficient magnification on the paired image sensor to view the important characteristics of the test component (or the tested component) for imaging. Obtain images that include the overall measurement target information that meets the requirements, and collect the images into an electronic computer using an image data acquisition card. Then, use the electronic computer to carry out image resolution and calculation to obtain measurement results.



The key development trends of image measurement instrument technology in the small parts industry of the three eye upright analytical microscope are as follows:

1. Further improve measurement precision. With the continuous improvement of industrial production standards, the precision requirements for fine parts will be further improved, thereby enhancing the accuracy of image measurement instrument technology in measuring precision. In addition, with the rapid development trend of image sensor devices, high pixel devices have also created standards for improving the precision of system software. In addition, further scientific research on sub resolution and super-resolution technologies will also provide technical guarantees for improving the precision of system software.



2. Improve measurement efficiency. The application of small parts in the field has been improved at the geometric level, and 100% online measurement of complex daily tasks and production of manufacturing solid models must be efficiently measured. With the improvement of hardware configuration capabilities such as electronic computers and the continuous improvement of image solution optimization algorithms, the high efficiency of image measurement instrument system software will be improved. 3. Complete the transformation of micro components from point measurement to overall measurement. At present, image measurement instrument technology is limited by measurement precision, and most of them perform imaging on important characteristic areas in small components to complete the measurement of important characteristic points, which cannot measure all contours or all characteristic points. With the improvement of measurement precision, obtaining detailed images of parts and completing high-precision measurements of overall appearance deviation will be used in more and more industries. In summary, in the field of micro element device measurement, the high efficiency of high-precision image measurement instrument technology will inevitably become a key development prospect for high-precision measurement technology. Therefore, the image collection hardware configuration system software has achieved higher standards for image quality, image edge precise positioning system software correction, and other stages, which have broad application prospects and key research significance. Therefore, this technology has become a hot topic in scientific research around the world and one of the most important applications in visual inspection technology.