培训时我有跟老师提及过破坏性测试的MSA。关键在取样上(样本量一般很大,>30pcs),取样的建议是分时段连续取样。
我当时的问题是一个机台有48个工位,需要测量产品内腔的充气压力,(测量系统是采用排水法来测试的)。取样的要求是:连续取3圈,按48个工位取样。再间隔一段时间后,重复两次上述取样步骤,安排3个检验员测试。这样的话样本量就非常大了(3*48*3=432pcs)。如果机台工位只有8个的话,还可以承受,像这48个的话就比较难上老板同意。因为测试不合格后,还要改进测试设备,又要再重复做MSA验证。这就是在测量阶段经常碰到的问题。可以参考一下!样本量很大,也希望能有更好的取样方法。
在赛微科技公司,GMS系统即是赛微量具仪器管理系统,是实现对量具及仪器设备进行管理、维护、校验和评估的有效的系统软件。
用户可透过Intranet或Internet进行量具仪器的校验申请、校验报告制作、评审、测量系统分析(MSA)、量具仪器的转移、报废及资料的修改。 系统可自动提醒和跟催量具仪器的校验和测量系统分析/评估。
确保量具仪器的精度及其稳定性,提高产品质量、系统可自动完成MSA报告的制作和计算、分析。赛微量具仪器管理系统的特性:1 W量具校验,申请,评阅,转移,管理权限网上控制;2 量具仪器的校验申请,校验报告制作,评阅,MSA及量具仪器资料的修改等权限均由使用者ID决定。
3 自动量具校验/MSA提醒4 量具管理者可自定义校验提醒提前时间,系统将自动提醒您校验/MSA。5 自动MSA计算,分析6 只要您输入数据,系统将自动作MSA(GRR)的计算,作出分析图表并判断。
7 自动生成: 仪器校验履历、即将到期仪器清单、过期未校仪器清单、仪器校验履历、校验报告、MSA(GRR)报告。
A Monkey and a Tiger
Today I am very happy to stand here, telling you a story:A Monkey and a tiger .Every one thinks the monkey is very small, but the tiger is strong.In this story Little Monkey uses his wisdow to bit the tiger. just remenber those who are weak can beat those who are strong. let's share the story.
An old tiger lives in the forest. He does not want to look for food . He often tells other animals to bring him something to eat.
One day He sees a monkey and says," I'm hungry, monkey. Go to the village and bring me a fat pig."
"Oh, Tiger," says the monkey. "I can't do that now. There is another tiger over there. He also wants a fat pig. He will not let me get anything for you to eat. I am afraid of him."
"What?" cries the tiger. "Show me that tiger. I will teach him a lesson ."
"Come with me," says the monkey.
The monkey and the tiger get to a bridge over the river. "Now look down at the water," says the monkey.
"Do you see the head, the white teeth and the big green eyes of a tiger?"
"Yes, I do," says the old tiger," I will eat him up!"
“Grr…! So you told Monkey not to bring me anything?!Grrr … I'll kill you!”
With these words the tiger jumped into the river. He did not come out again.
“Ha,ha, ha! Goodbye, Mr Tiger,” said the monkey and he went away .
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