Calibration Connect Limited - providing total calibration solutions

Calibration Connect Limited

Unit 2, 27 Tyne Street, Addington  •  PO Box 8857, Riccarton  •  Christchurch, New Zealand
Phone 0064 03 963 9244  •  Fax 0064 03 963 9199  •  Mobile 0064 021 775 800
info@calibrationconnect.co.nz

 providing total calibration solutions
Tuesday, 07 February 2012
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Glossary: Items Starting With C


ALL | A | B | C | D | E | F | H | I | M | N | P | R | S | T | V | W | Z | 1 | 

  • Calibration


    A set of operations, under specified environmental conditions, that establish the relationship between measured values of the equipment under test and the corresponding values of the reference standards or materials.

  • Conductance


    The measure of the ability of a material or solution to carry an electrical current. Unit of measure is the Siemens (S).

  • Confidence Interval


    The range of values that encompases the standard uncertainty multiplied by the coverage factor. In the formula below, ± ks represents the confidence interval.

    value = m ± ks

    value     = value of the measurement
    m = measurement (or mean of measurements)
    k = coverage factor
    s = standard uncertainty

  • Coverage Factor


    A numerical factor k is used as a multiplier of the combined standard uncertainty in order to obtain an expanded uncertainty. In general, the value of the coverage factor k is chosen on the basis of the desired level of confidence to be associated with a measurement. With a normal distribution, k=2 giving a level of confidence of approximately 95 % that the measured value m is within ± ks of the value.

    value = m ± ks

    value = value of the measurement
    m = measurement (or mean of measurements)
    k = coverage factor
    s = standard uncertainty

  • Current


    The rate of flow of electricity. The unit of measure is the ampere (A).
Unit 2, 27 Tyne Street, Addington  •  Christchurch, New Zealand
PO Box 8857, Riccarton  •  Christchurch, New Zealand
Phone 0064 03 963 9244  •  Fax 0064 03 963 9199  •  Mobile 0064 021 775 800
info@calibrationconnect.co.nz  •  www.calibrationconnect.co.nz

© 2012 Calibration Connect Limited