The Technology and Development Trends of Fully Automatic Image Measuring 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 sensors such as CCD (positive charge coupled components) to obtain image information, transform it into analog signals, and collect them into an electronic computer. Then, image processing technology is used to solve the data image data signal. Obtain various images as needed. According to the application of correction technology, the 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 volume and the improvement of production and processing technology level, there have been many two extreme specifications of products, namely larger and smaller sizes, for fully automatic coordinate measuring machines. For example, measuring the external specifications of airports, measuring the important components of large machinery, such as high-speed trains, and measuring the critical value specifications of small components. The trend of miniaturization development for various equipment, as well as measuring important micro specifications in microelectronics and microbiology technology, has created new daily tasks for detection technology. Image measurement instrument technology has a wider measurement range. 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 according to precision regulations. Daily tasks that cannot be completed by measuring mechanical equipment by making them smaller or larger. Therefore, whether it is large-scale or small-scale measurement, the key efficacy of image measurement instrument technology is self-evident. Generally speaking, components with specifications ranging from 0mm to 10mm are referred to as small components, which are internationally defined as mesoscale components. This type of component has a high precision requirement, usually in the μ M-level, complex construction, traditional inspection methods cannot consider the necessity of measurement. Image measurement instrument system software has become a common method for measuring small components. The imaging of the tested component (or important features of the tested component) must be carried out based on the optical lens with sufficient magnification on the paired image sensor. Obtain images that include the overall target information of the measurement that meets the requirements, and collect the images into an electronic computer based on the image data acquisition card. Then, perform image resolution and calculation based on the electronic computer to obtain the measurement results.

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

1. Further improving measurement accuracy. With the continuous improvement of industrial production standards, the precision requirements for fine parts will be further improved, thereby improving 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 set standards for improving the precision of system software. In addition, further scientific research on sub definition and super-resolution technologies will also provide technical guarantees for improving the precision of system software.

2. Improve measurement efficiency. The application of small and medium-sized parts in the field has been improved at the geometric level, and the daily tasks of 100% online measurement and production 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 efficiency of image measurement instrument system software will be improved. 3. Complete the transformation of micro components from point measurement to overall measurement. The current image measurement instrument technology is limited by measurement precision, and most of the important characteristic areas in small components are imaged 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 is bound to become a key development prospect for high-precision measurement technology. Therefore, the hardware configuration system software for image collection has achieved higher standards for image quality, precise positioning of image edges, and software correction, which have broad application prospects and key research significance. Therefore, this technology has become a network hotspot for scientific research in various countries around the world, and has become one of the most important applications in visual detection technology.