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### metrology.ppt

• 1. Introduction Metrology: The science of measurement and its application Importance of Metrology in various industries Accuracy, precision, and traceability as key concepts
• 2. Metrology Types • Industrial Metrology: Used in manufacturing processes • Scientific Metrology: Focus on fundamental measurements • Legal Metrology: Ensures compliance with standards and regulations
• 3. Measurement Systems • International System of Units (SI) as the global standard • Key SI units: meter, kilogram, second, ampere, kelvin, mole, candela • Derived units and prefixes
• 4. Measurement Uncertainty • Definition of uncertainty in measurements • Sources of uncertainty: systematic and random • Methods to estimate and minimize uncertainty
• 5. Calibration vs. Verification • Calibration: Process of comparing measurements to a known standard • Verification: Checking if a measuring instrument is within acceptable limits • Importance of regular calibration and verification
• 6. Measurement Instruments • Length measurement: rulers, calipers, micrometers • Mass measurement: balances, scales • Temperature measurement: thermometers, thermocouples • Electrical measurement: multimeters, voltmeters, ammeters
• 7. Metrology Techniques • Direct measurement: measuring the actual value • Indirect measurement: calculating the value based on other measurements • Non-contact measurement: laser, ultrasonic, and optical methods
• 8. Metrology in Quality Control • Role of metrology in ensuring product quality • Statistical Process Control (SPC) and Six Sigma • Importance of accurate and repeatable measurements
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