Measurement and Calibration Overview 

I. Introduction to Measurements, Fundamental & Derived Units

                A. Introduction to Metrology
                                Need for measurements
                                Importance of Calibration
                                Early measurements and metric system
                B. Principles of Metrology
                                7 Fundamental SI Units ? Length, Mass, Time, Electric Current,
                                Thermodynamic temperature, Luminous intensity, Amount of substance
                                Derived Units ? Examples (resistance, capacitance, pressure, etc.)
                                Prefixes and Multipliers (use of milli, micro, nano, etc.)
                                Measurement Terms: True Value, Accuracy, Precision, Resolution, and Bias
                                Traceability ?    What is it? Relation to NIST.

II. Dimensional Standards, Measurements, Calibration

                A. Measuring Instruments

Micrometers, scales & rules, squares, protractor, calipers, depth gage 
        B. Dimensional Calibration Standards - gage blocks 

III. Physical Metrology Terminology, Instruments, Calibration
                A. Types of Measurements - Mass, Force, Pressure, Flow, Humidity
                B. Calibration Physical standards

IV. Thermodynamic Temperature Devices
                A. Types of Measuring Instruments
                                General applications of glass thermometers, thermocouples, thermistors, PRT, pyrometers
                B. Introduction to Temperature Calibration Principles 

V. Electrical Metrology
                A. ELECTRICAL METROLOGY
                                Metric prefixes
                                Basic electrical units ? volt, ampere, ohm
                                Analog vs. Digital measurements
                                Classical types of errors
                                Electrical calibration ? Application of Derived units
                                Noise and grounding

VI. Standards Organizations and Document Standards

                A. STANDARDS ORGANIZATIONS
                                ISO, IEC, ANSI, ISA, PMA, NCSL, DOD

       B. Documented Standards
                                 ANSI/NCSL Z540-1-1994
                                 ISO/IEC 17025
                                 Laboratory Accreditation
                                 Accrediting Organizations                     

VII. Calibration Systems
                A. Calibration procedures
                B. Calibration methods
                C. Calibration practices and regulations
                D. Calibration environments
                E. Calibration processes (includes establishing calibration intervals)
                F. Document control 

VIII. Measurement Uncertainty
                A. Statistics and measurements
                B. Types of distributions ? normal, rectangular, triangular, U shape
                C. Type A and Type B Uncertainty, Combined Expanded Uncertainty
                D. What is GUM?
                E. Factors that introduce errors into measurements    
                F. What is an Uncertainty Budget?

 

    

 

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