Based on the procedure for parametrical optimization of MEWMA control chart, a case study of its application in surface mount process for the solder joint quality control was presented.
提出了MEWMA控制图参数优化方法,对电子产品装配中的表面贴片工艺过程的焊点质量控制进行了研究。
The findings are consistent with practical observations, indicating that the gray system analysis is an effective method for parametrical analysis of yarn strength.
The steps were put forward about how to correct the parametrical errors of the sensors with parameter drifts.
对于出现了参数漂移的传感器,指明了克服参数漂移的修正措施。
The parametrical 3-D model is built and the output cam profile is drawn.
建立了参数化的三维模型,并用反转法绘制了摆动输出凸轮的轮廓曲线。
In this article, the parametrical mathematic model, physical model and finite model that adapted for the main performance indexes of pipe extrusion were developed.
本文提出并建立了适合管材挤出主要性能指标的参数化数学模型、物理模型和有限元模型。
The control problem of space float zero point is discussed using the example of an one dimension float zero point control from which a conception of parametrical sense is put forward.