【正文】 age RR score。 assessments agree with standard. Individual vs. Standard Disagreement assessment (repeatability) Between appraisers (reproducibility) Total agreement (against known) Attribute MSA Exercise ? 5人一組 , 選 3人為檢查員 , 一人為記時(shí)員 ,一人為數(shù)據(jù)錄入員。Presentation 1 Measurement Systems Analysis 測量系統(tǒng)分析 Warm up Exercise 熱身練習(xí) The Necessity of Training Farm Hands for First Class Farms in the Fatherly Handling of Farm Live Stock is Foremost in the Eyes of Farm Owners. Since the Forefathers of the Farm Owners Trained the Farm Hands for First Class Farms in the Fatherly Handling of Farm Live Stock, the Farm Owners Feel they should carry on with the Family Tradition of Training Farm Hands of First Class Farmers in the Fatherly Handling of Farm Live Stock Because they Believe it is the Basis of Good Fundamental Farm Management. Task: You have 60 seconds to count the number of times the 6th letter of the alphabet appears at the right paragraph. Are you ready? Go! 給你 60秒的時(shí)間數(shù)出右邊段落中第六個(gè)字母的出現(xiàn)次數(shù) . Warm up Exercise ?Document your answer on a scrap note ?As we read the answers, type them into a Minitab data sheet. ?Run a histogram on the results ?What are your observations? Observed Variation Which process is best? ? Observed (Total) 2 Total Variability (Observed variability) Process A Process B Measurement Variation Which process is best? = ? Meas. System 2 ? Observed (Total) 2 Measurement Variability Total Variability (Observed variability) Process A Process B Part Variation Which process is best? + ? Actual(Par t) 2 = Part Variability (Actual variability) ? Meas. System 2 ? Observed (Total) 2 Process A Process B Total Variability (Observed variability) Measurement Variability LSL USL Good Parts Rejected? Measurement Uncertainty What Is An MSA? Scientific and objective method of analyzing the validity of a measurement system 一種科學(xué)客觀的方法，用于有效的分析測量系統(tǒng) –A “tool” which quantifies: 一種工具，它量化： 1. Equipment Variation 設(shè)備波動 2. Appraiser (Operator) Variation 評估者波動 3. The Total Variation of a Measurement System 測量系統(tǒng)總的波動 –MSA is NOT just Calibration 測量系統(tǒng)分析不僅僅是校準(zhǔn) Measurement System Analysis is often a “project within a project” 測量系統(tǒng)分析經(jīng)常是 ”項(xiàng)目中的項(xiàng)目 ” Main Sources Of Variation ?Materials 材料 ?Methods 方法 ?Machines 機(jī)器 ?People 人員 ?Environment 環(huán)境 ?Measures 測量 Measurement systems are the most neglected 測量系統(tǒng)經(jīng)常被忽視 測量系統(tǒng)：是用來對被測特性定量測量或定性評價(jià)的儀器或量具、標(biāo)準(zhǔn)、操作、方法、夾具、軟件、人員、環(huán)境和假設(shè)的集合；用來獲得測量結(jié)果的整個(gè)過程。 assessments agree with each other. All Appraisers vs. Standard Assessment Agreement Inspected Matched Percent (%) % CI 30 23 ( , ) Matched: All appraisers39。 Presentation 56 Variables Measurement System Studies 連續(xù)型數(shù)據(jù) 測量系統(tǒng)研究 Step Variables MSA ? Step 1: Randomly select 10 samples. In addition, identify the operators who use this instrument daily. ? 第一步 : 隨機(jī)選取 10個(gè)能夠代表過程變異的樣品 ,指定常用該檢驗(yàn)裝置的操作員來做檢查人員 ? Step 2: Calibrate the gage or verify the last calibration date is valid. ? 第二步 : 檢驗(yàn)儀器 ,確認(rèn)儀器在校準(zhǔn)合格期以內(nèi) ? Step 3: Set up the Minitab data collection sheet for the RR study. ? 第三步 : 用 Minitab設(shè)定做 GRR分析的數(shù)據(jù)收集表格 ? Step 4: Ask the first operator to measure all the samples once in random order. Blind sampling, in which the operator does not know the identity of each part should be used to reduce human bias. ? 第四步 : 要求第一個(gè)操作員隨機(jī)測量所有樣品一次 ,注意不能讓操作員知道樣品的編號 ,以減少人為偏差 . ? Step 5: Have the second operator measure all the samples once in random order and continue until all operators have measured the samples once (this is trial 1) ? 第五步 : 讓第二個(gè)操作員隨機(jī)測量所有樣品一次 ,繼續(xù)直到所有操作員都測量樣品一次 .這算完成第一輪測量 . Step Variables MSA ? Step 6: Repeat steps 4 5 for the required number of trials. It is best if these measurements can be done over several days. ? 第六步 : 重復(fù)第 4和第 5步直到完成需要的輪次 .如果可能 ,測量最好是在跨時(shí)間段完成 . ? Step 7: Enter the data and tolerance information into Minitab ? 第七步 : 把數(shù)據(jù)和公差信息輸入到 Minitab中 ? Step 8: Analyze the results by assessing the quality of the measurement system based on the guidelines on the following page. Determine followup actions. ? 第八步 : 根據(jù)后續(xù)的測量系統(tǒng)評估指標(biāo)的指導(dǎo)原則來分析測量系統(tǒng)是否可以接受 ,決定采取必要的行動 . SAMPLE SELECTION – Option 1: if process variability is known, the samples selected should be representative of the normal process/product variation – Option 2: if process variability is unknown, the samples selected should uniformly span beyond the width of the specs ? 樣品選擇的原則 : 1) 如果過程變異已知 ,那么樣品要盡量展現(xiàn)正常過程 /產(chǎn)品的變異范圍 2) 如果過程變異未知 ,那么樣品要盡量在規(guī)格范圍內(nèi)均勻取樣 . Trials And Data Collection ? Generally two to three operators 一般選取 2到 3個(gè)操作者 ? Generally 510 process outputs to m