Video measurement system, also known as precision image measuring instrument, overcomes the shortcomings of traditional projectors and is a new type of high-precision, high-tech measuring instrument integrating optical, mechanical, electrical and computer image technologies.
It works as follows:
- High magnification optical image of the measured part is carried out by optical microscope and the magnified image will be sent to the computer by CCD camera system.
- The software will efficiently measure the contour, surface shape, size, angle and position of various complex parts, especially the micro-measurement and quality control of precision parts.
- The measurement data can be directly input into the AUTOCAD to become a complete engineering drawing.
- The graphics can generate DXF documents, and can also be input into WORD and EXCEL for statistical analysis, and a simple Xbar-S control diagram can be drawn to obtain Ca, and other parameters.
Video measurement system can be divided into manual video measurement system, automatic video measurement system and smart flash video measurement system according to the operation mode.
The Manual Video Measurement System
During the measurement process, the measured part is moved to the measurement area by manually moving the X, Y, and Z axes of the measurement platform. Through manual operation, the operator can better perceive the speed of the platform movement and effectively prevent the damage of the instrument caused by misoperation.
- The disadvantage is that the measurement efficiency is low which is not suitable for mass samples measurement.
- The advantage is that the cost is low, the machine can be moved at any time, and it is more convenient to measure a single product.
With the development of automatic control technology, manual video measurement system are basically replaced by automatic video measurement system.
The automatic video measurement system
With the continuous development of measurement technology, the Automatic video measurement system has been added and improved in technology on the basis of the manual video measurement system.
Gradually change the process of manual control of platform movement and some manual operations. In addition to the improvement of the hardware of the automatic image measuring instrument, the research and development of the measuring software is also improving, and the functions are increasing.
Such as: automatic edge finding, automatic selection of measurement elements, automatic output of measurement data, automatic analysis of results, automatic focus, automatic control of the moving direction and speed of the platform, automatically delineate the contour and appearance of parts.
Due to the simplicity and complete functions of the automatic video measurement system, it has gradually replaced the manual video measurement system as the mainstream machine in the precision measurement industry, but the price is higher than that of the manual video measurement system.
The Smart Flash Video Measurement System
In the process of precise measurement by this “flash video measurement system”, the user only needs to press the start button, and the instrument can quickly and accurately measure according to the appearance and shape of the part.
Traditional video measurement systems need to go through a complex process when measuring parts, which brings obstacles to batch measurement. Moreover, when the measurement software performs operations such as edge finding, errors may be caused by manual or other reasons, resulting in a decrease in measurement efficiency.
The biggest feature of the smart flash video measurement system is its simple operation and powerful intelligent design. It integrates the measurement function into one button. Only one button is needed to realize fast measurement, which greatly improves the measurement efficiency.
So, we learn that there are three kinds of video measurement system. How to select the right one? Hey, Please check out my next article.
