Sample automatic measurement method (5)
Here, the author reminds that the instrument must be periodically checked as required to ensure the accuracy of the instrument's use (measurement). If over-use, the vertical and horizontal guides are too perpendicular to the direction of motion, this error will be introduced into the measurement results, the qualified products will be rejected as non-conforming products, and the non-conforming products will be accepted as qualified products, directly affecting product quality. Therefore, it may cause significant technical and economic losses. 5 Conclusion (1) When measuring, before the sample is installed, the surface roughness and various shape errors of the sample must be carefully checked to meet the measurement requirements. For example, the surface roughness of the mounting plane, the reference edge and the profile surface, the straightness and flatness of the reference edge, and the perpendicularity of the reference edge and the profile facing the mounting plane conform to the measurement requirements of the precision template. Because the above items are the basic requirements for the correct collection of measurement points. (2) Although it is not necessary to perform alignment and reading on the sample to be tested by using the measurement software on the microcomputer type, the measurement result can be quickly obtained only by the point (pressure line) and the program operation. But remember, the image method must also be properly focused to get a clear image and correct points to get the right measurement results. (3) For the thicker sample to be tested, in order to avoid the disadvantage that the profile line surface is not perpendicular to the installation plane, in the case of installation conditions, after measuring one side, flip the surface and measure again, so that it can be objectively reflected. The actual situation of the sample being tested. (4) The measurement software is equipped with Chinese character prompts, and the operation is very easy, but it should be pointed out that the surveyor must have basic geometric quantity precision measurement knowledge and instrument operation skills. For more articles, please refer to "Metal Processing" Cold Processing 2008 No. 1 Previous page Quick Coupler,Air Hose Connector,Pu Tube Fitting Fenghua Jade Motor Co., Ltd. , http://www.composite-hose-supplier.com
It can be seen from the above error analysis that in the coordinate method measurement, when the longitudinal direction and the horizontal guide plate are perpendicular to each other, the measurement accuracy has little effect, but when the longitudinal and transverse guide plates move in a direction different from 90°, even if there is a small deviation, It will have a great impact on measurement accuracy.