Calibration in Measurement Technology Quiz
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Questions and Answers

Which organization is responsible for maintaining primary standards of measurement in the United States?

  • NIST (correct)
  • PTB
  • NABL
  • NPL

    • What is the purpose of establishing traceability in calibration?

  • To improve the quality of the calibration
  • To ensure consistent and comparable standards internationally (correct)
  • To provide traceability to customer's instruments
  • To establish an unbroken chain from top level standards to measurement instruments

    • Which standards call for an effective metrology system and formal, periodic, and documented calibration of all measuring instruments?

  • PTB standards
  • ISO 9000
  • NPL standards
  • ISO 17025 (correct)

    • When might calibration be required for an instrument?

    <p>All of the above</p> Signup and view all the answers

    Which of the following best describes calibration in measurement technology and metrology?

    <p>The act of comparing measurement values from a device under test with a calibration standard of known accuracy</p> Signup and view all the answers

    What is the main purpose of calibration?

    <p>To ensure that the device under test has no significant error</p> Signup and view all the answers

    What is the formal definition of calibration according to the International Bureau of Weights and Measures (BIPM)?

    <p>The process of establishing a relation for obtaining a measurement result</p> Signup and view all the answers

    Which of the following is the purpose of calibration?

    <p>To maintain the quality of measurement and ensure proper working of an instrument</p> Signup and view all the answers

    What is the recommended calibration interval according to ISO 17025?

    <p>The calibration interval should be agreed upon with the customer</p> Signup and view all the answers

    What is the accuracy ratio required for a completely correct calibration?

    <p>1:1</p> Signup and view all the answers

    What is the purpose of reducing the accuracy of the device being calibrated?

    <p>To compensate for a lower accuracy ratio</p> Signup and view all the answers

    Study Notes

    Calibration and Metrology

    • The National Institute of Standards and Technology (NIST) is responsible for maintaining primary standards of measurement in the United States.
    • The purpose of establishing traceability in calibration is to ensure that measurements are consistent with national standards.
    • The International Organization for Standardization (ISO) 17025 and the American National Standards Institute (ANSI) Z540-1 call for an effective metrology system and formal, periodic, and documented calibration of all measuring instruments.
    • Calibration may be required for an instrument when it is first received, after repair or maintenance, when it is moved to a new location, or when it is used in a new application.
    • Calibration in measurement technology and metrology is the process of comparing a device's measurements with a reference standard to ensure accuracy and consistency.
    • The main purpose of calibration is to ensure that measurements are accurate and consistent with national standards.
    • The formal definition of calibration according to the International Bureau of Weights and Measures (BIPM) is "the set of operations that establish, under specified conditions, the relationship between values indicated by a measuring instrument or measuring system and the corresponding values of a quantity."
    • The purpose of calibration is to ensure that measurements are accurate and reliable, and to provide a basis for traceability to national standards.
    • The recommended calibration interval according to ISO 17025 is dependent on the type of instrument, usage, and environmental conditions.
    • The accuracy ratio required for a completely correct calibration is 4:1, where the uncertainty of the reference standard is one-fourth of the uncertainty of the device being calibrated.
    • Reducing the accuracy of the device being calibrated is not a purpose of calibration; instead, calibration aims to ensure that the device's measurements are accurate and consistent with national standards.

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    Description

    Test your knowledge on calibration in measurement technology and metrology. Learn about the importance of comparing measurement values with known accuracy standards. Explore topics such as calibration standards, measurement devices, and physical artifacts.

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