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EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 1 THE CALIBRATION.

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Presentation on theme: "EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 1 THE CALIBRATION."— Presentation transcript:

1 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 1 THE CALIBRATION

2 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 2 1 -What is meaning of Quality & Quality control & quality assurance? 2 - Why Is Calibration? 3 - What Is Calibration? 4 - What are types of calibration laboratory? 5 - Control of the calibration environment. 6 - Important Expression. 7- Standard unit 8 - Calibration certificate. 9 -ISO/TS 16949, ISO 9001, ISO 17025, accreditation Requirements in calibration. Contents

3 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 3 Product quality depend on: Measuring instrument accuracy (uncertainity) -If the confidence level of your measurement process is low, you will be accepting some bad products and rejecting another good ones.OR producing some out of specifications products. 2- Why Is Calibration? 3 - What Is Calibration? Comparing the output of the process instrument being calibrated against the out put of a standard instrument of known accuracy.

4 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 4 4 - What are types of calibration laboratory Mass and Dimension Mechanical Electrical Thermal Measuring instrument accuracy depend on periodic calibration to assure that manufacture specifications (instrument accuracy) are met. Calibration plan

5 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 5 5-Control of the calibration environment : Humidity : In general (20 %-50% RH) Temperature 20 ºc Dust Levels Electrostatic Discharge( ESD) Vibration

6 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 6 - What is meaning of: Accuracy & Precision? - Inaccurate - imprecise - Inaccurate - precise - Accurate - precise 6-1 Important Expression Accuracy:The closeness of the agreement between the result of measurement and the true value of the measurand. Precision: A measurement of consistency or repeatability of a set of measurements (freedom from random error).

7 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 7 2-Resolution of the measurement: The degree to which a measurement can be determined. 1-Sensitivity: Is the minimum input that will result in a discernible change in an output. Scale deflection /value of measured quantity causing deflection. What is meaning of: Sensitivity& Resolution? 6-2 Important Expression

8 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 8 Linearity: 1- zero drift 2- sensitivity drift 3- zero drift + sensitivity drift. Dead space: 6-3 Important Expression

9 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 9 6-4 Important Expression uncertainty For micrometer =1 in 10 9 uncertainty For micrometer =1 in 10 5 uncertainty For micrometer =1 in 10 6 uncertainty For micrometer =1 in 10 7 uncertainty For micrometer =1 in 10 4

10 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 10 7-Standard Unit

11 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 11 8-Calibration certificate Each certificate or report shall include at least the following information's :- -Estimated uncertainty of calibration. -Traceability. - Measurements, examinations, supported by tables, graphs. -Reference to methods and sampling procedures. -Condition of the calibration………….

12 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 12 ISO/TS 16949 and ISO 9001 Requirements in calibration.

13 EGA E gyptian G erman A utomotive Co. A DaimlerChrysler Industrial J.V. 13


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