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引言公差计算是产品设计中的重要阶段。公差设计和正确规定元件电参数的要求应与机械公差综合考虑,这是提高产品可靠性、降低生产成本的重要环节。波导元件的结构精度与制造、装配、充气或抽真空等引起的误差有关,可通过误差概率分布算出对电参数的影响,从而对公差要求提供理论数据。找出公差分布规律以合理分配组件中各环的公差值,在确保所需精度、电气和机械互换性前提下,建立误差参数的经验方程,然后
Introduction Tolerance calculation is an important stage in product design. Tolerance design and the correct provision of electrical parameters of components should be combined with the mechanical tolerance, which is to improve product reliability, reduce production costs an important part. The structural accuracy of a waveguide element is related to the error caused by manufacturing, assembling, inflating, or evacuating, and the influence of the electric parameter can be calculated from the error probability distribution, thereby providing theoretical data for the tolerance requirement. Find out the law of distribution of tolerances to reasonably distribute the tolerance values of each ring in the assembly, establish the empirical equation of the error parameters under the premise of ensuring the required accuracy, electrical and mechanical interchangeability, and then