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  2. Calibration - Wikipedia

    en.wikipedia.org/wiki/Calibration

    The calibration process begins with the design of the measuring instrument that needs to be calibrated. The design has to be able to "hold a calibration" through its calibration interval. In other words, the design has to be capable of measurements that are "within engineering tolerance " when used within the stated environmental conditions ...

  3. Precision measurement equipment laboratory - Wikipedia

    en.wikipedia.org/wiki/Precision_Measurement...

    A Precision Measurement Equipment Laboratory (PMEL) is a United States Air Force (USAF) facility in which the calibration and repair of test equipment takes place. This practice is also known as metrology: the science of measurement. Metrology is defined as the science of weights & measures, while a PMEL is the place where technicians perform ...

  4. Air Force Metrology and Calibration Program Office - Wikipedia

    en.wikipedia.org/wiki/Air_Force_Metrology_and...

    The operational success of a "Test Shop" program set up at March AFB, California, on 15 September 1957, led to the establishment of the base-level Precision Measurement Equipment Laboratories providing the Air Force with a complete calibration system that could handle the increasingly stringent measurement needs of the new missile and aircraft ...

  5. List of measuring instruments - Wikipedia

    en.wikipedia.org/wiki/List_of_measuring_instruments

    The combination R-G-B = HH-HV-VV combines radar images of waves sent and received horizontally (HH), sent horizontally and received vertically (HV) and sent and received vertically (VV). The calibration of such instruments is done by imaging objects (calibration targets) whose radar brightness is known.

  6. Standardisation Testing and Quality Certification - Wikipedia

    en.wikipedia.org/wiki/Standardisation_Testing...

    STQC provides calibration services, such as Electro Technical Calibration, Non-Electrical Calibration, High Precision Calibration, Onsite Calibration and Medical Equipment Calibration. Multiple STQC laboratories have obtained national and international accreditations and recognitions in the testing and calibration sector.

  7. ISO/IEC 17025 - Wikipedia

    en.wikipedia.org/wiki/ISO/IEC_17025

    ISO/IEC 17025 General requirements for the competence of testing and calibration laboratories is the main standard used by testing and calibration laboratories. In most countries, ISO/IEC 17025 is the standard for which most labs must hold accreditation in order to be deemed technically competent.

  8. Calibration curve - Wikipedia

    en.wikipedia.org/wiki/Calibration_curve

    A calibration curve plot showing limit of detection (LOD), limit of quantification (LOQ), dynamic range, and limit of linearity (LOL).. In analytical chemistry, a calibration curve, also known as a standard curve, is a general method for determining the concentration of a substance in an unknown sample by comparing the unknown to a set of standard samples of known concentration. [1]

  9. Balancing machine - Wikipedia

    en.wikipedia.org/wiki/Balancing_machine

    Calibration is performed by adding a known weight at a known angle. In a soft-bearing machine, trial weights must be added in correction planes for each part. This is because the location of the correction planes along the rotational axis is unknown, and therefore it is unknown how much a given amount of weight will affect the balance.

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