In recent years, precision measurement technology has developed rapidly and the results have been gratifying. For example, online measurement technology can perform real-time measurement and display of processing status, and timely detect whether abnormal conditions occur in processing, thereby greatly improving production efficiency.
In the process of high-precision machining and quality management, with the development of opto-mechatronics and systemization, optical measurement technology has developed rapidly, and corresponding measurement machine products have emerged in large numbers, and the development of measurement software has received increasing attention.
In recent years, there have been many non-contact measuring machines and various devices developed using optical principles. For example, MARPOSS's non-contact tool measurement system, MidaLaser, is a new type of measuring machine with a laser probe that automatically performs non-contact measurement of all tools while the CNC machine is running, and can perform tools on the basis of measured values. Automatic positioning. Sony Precision Engineering's non-contact shape measuring machine YP20/21 is also a shape measuring machine that uses a semiconductor laser high-speed and high-precision autofocus sensor. All scales are standard components, and the sensors and stages are controlled by a microcomputer. Operational performance and data processing capabilities. The non-contact three-coordinate measuring system Zip250 sold by YKT is a new type of measuring machine with high rigidity, high speed and high precision. The load capacity of the machine stage is 25kg, and the resolution of the scale (X, Y, Z axis) is 0.25μm. The camera is equipped with a CCD camera with a digital flange and the latest DSP processor, so it can be used for high-speed image processing measurements, and can also be used in conjunction with contact probes for related measurements.
With the emergence of a large number of non-contact, high-efficiency measuring machines, experts predict that the development direction of measurement technology in the 21st century is as follows:
(1) The measurement accuracy is developed from micron to nanometer, and the measurement resolution is further improved;
(2) The transition from point measurement to surface measurement (ie, from precision measurement of length to precise measurement of shape), improving overall measurement accuracy;
(3) With the application of new technologies such as image processing, remote sensing technology will be popularized and popularized in precision measurement engineering;
(4) With the establishment of the standardization system and the numericalization of measurement uncertainty, the reliability of measurement will be effectively improved.
In short, measurement technology must achieve high precision, and also requires high speed and high efficiency. Therefore, non-contact measurement and high-efficiency measurement will inevitably become an important development direction of precision measurement technology in the new century.
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