The surface roughness of the spectral confocal displacement sensor is used to characterize the microgeometric error of the part surface, and the microgeometric error is expressed in microns. When measuring the surface roughness, it is necessary to determine the sampling length, evaluation length, reference line and evaluation parameters. Due to the high manufacturing cost, it is necessary to reasonably select the parameter type and parameters in practical applications, and pay attention to the setting of the surface roughness parameters during use, otherwise it will increase unnecessary costs.

The surface roughness of the spectral confocal displacement sensor is used to characterize the microgeometric error of the part surface, and the microgeometric error is expressed in microns.

The concept of surface roughness, BUL743 can use a simple analogy to illustrate. Pretty skin is small and uneven. Different people, due to age or other natural factors, have great inconsistencies in their skin. Under normal aesthetics, smooth and delicate skin tends to appear more beautiful. Now, the sharpness of photographic equipment can easily reflect this subtle unevenness. In order to hide undesired skin features, beauties especially like Meitu software. One of the main functions is to smooth and evenly rub the rough skin in the picture, so that the skin is uneven, and the fine geometry becomes a smooth and ideal surface.

When measuring the surface roughness, it is necessary to determine the sampling length, evaluation length, reference line and evaluation parameters. On this basis, a series of standards are established, that is, the center line of the sampled data is found by the least square method, the high characteristic parameters Ra, Rz, Ry, and the distance characteristic parameters S, S, Sm, etc. are calculated by statistical methods. Tp . Due to the high manufacturing cost, it is necessary to reasonably select the parameter type and parameters in practical applications, and pay attention to the setting of the surface roughness parameters during use, otherwise it will increase unnecessary costs.

When marking dimensional tolerances and position tolerances cannot effectively control product quality, it is also necessary to control the surface roughness, dimensional tolerances, position tolerances, and surface roughness of parts in pursuit of accuracy, stiffness, tightness, or service life.

As the surface roughness increases, the effective contact area also decreases, the pressure increases, and the wear accelerates. Coarse surface troughs are sensitive to stress concentrations that affect the fatigue strength of the part.

At present, in the manufacturing industry, the instruments for measuring the size and shape tolerance of parts are traditional measuring instruments, such as calipers, micrometers, dial indicators, three-coordinate meters, etc. The sampling point is the macro contact point, which is the average point of multiple high-point contacts in the micro level, which cannot reflect the micro-geometric error. Instruments used to measure roughness cannot measure macroscopic form tolerances.

Using advanced sensors such as spectroscopic confocal, machine vision, laser CCD, combined with automation technology and system software, we have developed high-definition non-contact precision measurement equipment. This instrument can not only measure the macroscopic straightness, contour and other geometric tolerances, but also obtain comprehensive conclusions on surface roughness, macroscopic and microscopic characteristics. Measuring instrument is a latecomer advantage of precision machinery research and development, and is more conducive to the control of parts processing quality and the technical iteration of precision machinery.