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Optical mechanism micrometer mechanism for precision mechanical parts processing

by:QY Precision      2020-01-12
In the processing of precision mechanical parts, the optical mechanism Geometric measurement micro-measuring instrument can basically be divided into four categories according to the reference tool: μm, self-collimating optical tube instrument, microscope instrument and projection instrument. In the processing of precision mechanical parts, the microscope instrument and the projection instrument amplify the measured part through the optical system and measure it with an optical indication system object. How many times the measurement is amplified, and how many times the accuracy of the visual unamplified aiming measurement is also improved. In the processing of precision mechanical parts, the self-collimating optical tube instrument consists of a telescope and a parallel optical tube, and the image obtained by the telescope is measured by the indication system of the collimating optical tube. Its magnification M (Hope)Is the focal length F (Things)And focal length F (Purpose)Ratio: M (Hope)= F (Things)/F (Purpose). It has nothing to do with the position of the object to be measured for precision mechanical parts, thus expanding the use of the instrument. The self-collimating optical tube optical indication system is an integral part of some optical instruments. For example, it can form a micrometer optical comparison instrument and a 0. 2 µm shadow screen reading optical comparison instrument with a tangent mechanism, or it can be used alone. In the processing of precision mechanical parts, the μm is a micrometer designed according to the principle of light wave interference, and the smallest micrometer mechanism is realized based on the wavelength of the light source. In particular, the emergence of laser light sources and the development of laser technology and electronic technology have expanded the application scope of interference micrometer mechanisms for precision mechanical parts processing.
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