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| Credit- Degree applicable | | Effective Quarter: Fall 2020 | I. Catalog Information
| DMT 91 | Dimensional Metrology | 4.5 Unit(s) |
| | Requisites: Advisory: EWRT 200 and READ 200, or ESL 261, 262 and 263; MATH 210 or equivalent. Hours: Lec Hrs: 54.00
Out of Class Hrs: 108.00
Total Student Learning Hrs: 162.00 Description: Applications and capabilities of semi-precision and precision measuring tools, including scaled, vernier and digital instruments, used in manufacturing environments to inspect production and prototype parts. Introduction to the use of the optical comparator and CMM (coordinate measuring machine) |
| Student Learning Outcome Statements (SLO)
| | | • Student Learning Outcome: Demonstrate the ability to utilize common guages, measurement instruments, and calibration tools. |
| | | • Student Learning Outcome: Demonstrate the applications of precision measurement instruments. |
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II. Course Objectives | A. | Apply systems of measurement, and tolerances, precision, and accuracy. |
| B. | Demonstrate the applications of semi-precision and precision measurement tools |
| C. | Explain the use of surface and form instruments, as well as optical measurement |
| D. | Employ basic geometric dimension and tolerancing. |
| E. | Demonstrate the ability to make systems of measurements using coordinate measuring machines. |
III. Essential Student Materials IV. Essential College Facilities V. Expanded Description: Content and Form | A. | Apply systems of measurement, and tolerances, precision, and accuracy. |
| 1. | English and metric units of measurement |
| 2. | Accuracy, precision, reliability |
| 3. | Measurement error and tolerances |
| B. | Demonstrate the applications of semi-precision and precision measurement tools |
| 1. | Graduated and scale instruments |
| 2. | Vernier calipers and micrometers |
| 3. | Pin, ring, and thread gages |
| 4. | Height, bore and fixed gages |
| 5. | Comparison measurements |
| C. | Explain the use of surface and form instruments, as well as optical measurement
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| 1. | Surface evaluations, use of the profilometer |
| 2. | Surface texture and roughness |
| 3. | Angular and linear measurement on the optical comparator |
| D. | Employ basic geometric dimension and tolerancing. |
| 1. | Advantages in the manufacturing process |
| 2. | Geometric characteristic symbols, feature control frames, datums |
| 3. | Tolerance types, characteristics, and tolerance zones |
| E. | Demonstrate the ability to make systems of measurements using coordinate measuring machines. |
| 2. | Angular and linear measurements |
| 4. | GD&T position tolerance measurement |
VI. Assignments | A. | Required reading and homework assignments from text and supplemental handouts. |
| B. | Skill exercises to practice measurement |
| C. | Project that requires comprehension and application of a measurement plan. |
VII. Methods of Instruction | | Lecture and visual aids
Homework and extended projects
Discussion of assigned reading
Discussion and problem solving performed in class
Collaborative learning and small group exercises
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VIII. Methods of Evaluating Objectives | A. | Participation in class discussions and skills exercises to evaluate print reading and measurement competencies. |
| B. | Written project demonstrating comprehension and application of metrology concepts as well as critical thinking regarding a measurement plan. |
| C. | Midterm exam and quizzes to evaluate comprehension of terms and concepts. |
| D. | Final exam that requires students to critically analyze and apply concepts examined throughout the course. |
IX. Texts and Supporting References | A. | Examples of Primary Texts and References |
| 1. | Dotson, Connie :"Fundamentals of Dimensional Metrology.", Sixth Edition, Cengage Learning, 2015. |
| B. | Examples of Supporting Texts and References |
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