課程資訊
課程名稱
精密量測
Precision Metrology 
開課學期
107-1 
授課對象
工學院  機械工程學系  
授課教師
陳亮嘉 
課號
ME5140 
課程識別碼
522 U2690 
班次
 
學分
3.0 
全/半年
半年 
必/選修
選修 
上課時間
星期二7,8,9(14:20~17:20) 
上課地點
綜201 
備註
總人數上限:30人
外系人數限制:5人 
Ceiba 課程網頁
http://ceiba.ntu.edu.tw/1071ME5140_ 
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課程概述

[English]
Working with tolerances on the order of micrometer or nanometer scale, precision metrologists require the knowledge to operate highly sophisticated inspection instruments, such as optical comparators, profilometers, roughness measuring instruments, sphericity measurement and CMM (Coordinate Measuring Machine) systems. A good mathematical background and understanding of complex Geometric Dimensioning & Tolerancing (GDT) drawings is also required to determine the exact parameters to be inspected and how to process a part during the inspection sequence. This subject will benefit those with the responsibility to measure/inspect/quantify manufactured products in learning new techniques for modern precision metrology. The class will require students to operate some modern measuring instruments along with all the available inspections tools. The students will be introduced with the modern technologies in various measuring techniques and quantifying statistics. In the end of semester, a factory/company visit will be also provided to the students to experience the developing trend and R&D activities in the industries.

[Chinese] 首先必須從量測精度理論、不確定度的基本觀念開始認識精密量測在工廠品管的重要性,內容在於介紹量測精度之定義與內涵,所謂量測精度乃是使零件達預期之機能所需之準確程度。而量測不確定度為一量測量真值存在範圍的估計值,需經一連串量測量的統計分佈加以估計,並以標準偏差來表現其特徵。隨後並釐清容易混淆之準確度(Accuracy)、精密度(Precision)、重覆性(Repeatability)之觀念。

第一部份將對最基本的長度量測法做介紹,瞭解各種長度量具及儀器之原理、相關量具及儀器結構、功能與規格,包括游標卡尺、分厘卡、量表、光學尺等基本量具之刻劃與判讀原理,再延伸到測長儀及電子高度計的設計。

第二部份則分別對於精密量測技術之直度、角度、真圓度量測作介紹。直線為兩點之間最短距離,真直度 (Straightness)顧名思義在量測工件到達此標準物理定義的程度,光學方面應用雷射量測儀量測真直度的方法,目前市面上可見的為雷射準直儀、雷射干涉儀和雷射都卜勒儀等三種。而小角度的量測需要量測範圍小,其次是精度可達到幾秒,常用來作小角度量測儀器有自動視準儀、雷射準直儀、雷射干涉儀和水平儀等。真圓度通常以失圓(Out of roundness)尺寸大小表示之,即定義出理想圓的圓周與圓心,再以此理想圓定義出徑向距離差為其真圓度。換言之,即為二個能包絡圓形工作輪廓形狀的同心圓之最小半徑差異,可使用真圓度量測儀來量測。

第三部份介紹表面輪廓及表面粗度。輪廓量測是指觀察檢驗被測工件的斷面形狀,是否符合實際設計的形狀,可使用輪廓量測儀來測量,若受測物表面輪廓不能以接觸方式量測檢驗,則需在量測儀加上有Z軸調整裝置,配上光學量測探頭才能達到量測目的。而表面粗度為用各種加工方法和多種加工儀器完成的零件,其零件表面都一定會呈現凹凸不平的現象,而量測表面粗糙度的方法有許多種,通常分成接觸式與非接觸式兩大類別。

第四部份為介紹各種工業上常用的光電儀器原理及使用,如雷射干涉儀、雷射測徑儀、雷射探頭、單色光原理、雷射掃描儀等等。

第五部份三次元座摽量測技術。

其它將包含現代量測的重要新知與技術之介紹。 

課程目標
Objectives:
1. Students will learn the science and technology relating to Precision metrology, including all theoretical and practical aspects of measurement.
2. Three basic major topics will be introduced:
(1) Definition of internationally accepted units of measurement.
(2) Realization of these units of measurement in practice
(3) Application of chains of traceability linking measurements made in practice to reference standards.
3. The students will be learning the following important content:
(1) Scientific or fundamental metrology
(2) Applied, technical or industrial metrology
(3) Legal metrology

[Chinese]
本課程目標以教導各種傳統及新興精密量測原理及應用為主要方向,訓練學生具有設計及實作能力,以培養高級檢測技術人才為訴求,同時研發相關儀器設備與建立實驗教材,並與產業界維持良性與頻繁之互動關係。 
課程要求
1. A good mathematical background and understanding of complex Geometric Dimensioning & Tolerancing (GDT) drawings is also required to determine the exact parameters to be inspected and how to process a part during the inspection sequence.

2. This subject will benefit those with the responsibility to measure/inspect/quantify manufactured products in learning new techniques for modern precision metrology.

3. The class will require students to operate some modern measuring instruments along with all the available inspections tools.

4. The students will be introduced with the modern technologies in various measuring techniques and quantifying statistics. In the end of semester, a factory/company visit will be also provided to the students to experience the developing trend and R&D activities in the industries. 
預期每週課後學習時數
 
Office Hours
另約時間 備註: 1. Middle examination 期中考 (30%) 2. Final examination 期末考 (40%) 3. Assignment 作業 (15%) 4. Labwork and report 實驗報告 (15%) 5. Participation 出席成績 (0~-10%) 
指定閱讀
1. "Metrology for Engineers", J. F. W. Galyer and C.R. Shotbolt, Cassell Publisher Ltd. 1993. 

2. "Metrology Handbooks", Mitzutoyo. 2014  
參考書目
1. "Optical metrology" Kjell J. Gasvik, ISBN: 0-470-84300-4, Wiley, 3rd Edition
2. Machine Tool Metrology: An Industrial Handbook - Graham T. Smith
 
評量方式
(僅供參考)
   
課程進度
週次
日期
單元主題
第1週
11/09/2018  1) Course introduction  2) Precision Theory (精密量測導論)
 
第2週
18/09/2018  Length Measurement 
第3週
25/09/2018  Angle measurement Technology  
第4週
2/10/2018  Circularity measurement and evaluation 
第5週
9/10/2018  Measurement Data Assessment (Newly updated) 
第6週
16/10/2018  Surface profile measurement 
第7週
23/10/2018  Principle and application of Coordinate measuring machine (CMM) 
第8週
30/10/2018  Workshop I: Labwork on circularity measurement and CMM 
第9週
6/11/2018  Course shifting 
第10週
13/11/2018  Course shifting 
第11週
20/11/2018  Middle examination
 
第12週
27/11/2018  機器視覺基本原理與應用 
第13週
4/12/2018  台大近年精密量測技術發展 
第14週
11/12/2018  Workshop Labwork II: Labwork on laser interferometer, confocal microscope, white light interferometer 
第15週
18/12/2018  Mitutoyo visiting and workshop practice 
第16週
25/12/2018  Student project report I 
第17週
1/1/2019  National holiday 
第18週
8/1/2019  Student project report II