Accuracy of Measurement

Accuracy of Measurement

 

the characteristic of a measurement that indicates the degree to which the results of measurement approach the true value of the measured quantity. The smaller the deviation of the result of measurement from the true value of the quantity—that is, the smaller the error—the higher the measurement accuracy, regardless of whether the error is systematic or random, or contains components of both (seeERROR OF MEASUREMENT).

Error is sometimes used as a quantitative evaluation of the accuracy of measurement; however, error is a concept that is the converse of accuracy, and it is more logical to evaluate the accuracy by specifying the inverse of the relative error, without regard to sign. For example, if the relative error is ± 10 –5, then the accuracy is 10 5.

K. P. SHIROKOV

References in periodicals archive ?
Accuracy of measurement equipment allows for more efficient test; with wider margins, reliable results, and less maintenance over time.
Contract Awarded for Measuring magnifier it can be used to measure the sampling area in real time without distortion, And display the same area with double screen to improve the accuracy of measurement data;
In an industry handling a high-value product such as oil and gas, the accuracy of measurement equipment is crucial for correctness and profitability.
Users worldwide rely on the perfectly matched components of the measurement chain that guarantees maximum accuracy of measurement results and enables optimization of the complete product life cycle, from the development through the testing stages, as well as in manufacturing and production.
This newly developed technology predicts future changes in water levels based on past measurements, and, based upon the circumstances of sensors at any given time, automatically adjusts the three parameters of the measurement interval, the notification interval, and the measurement duration to maintain the required accuracy of measurement data based on the circumstances while conserving sensor power.
At the same time the high accuracy of measurement might be needed for the useful signal.
The author of the aforementioned study recommends this method of expressing the accuracy of measurement to biomedical fields.
The wind tunnel will have a new data acquisition which provides a greater accuracy of measurement across a wider range of pressures and temperatures.
This is a leading event for metrology, the science of measurement, and the award was presented "for high quality accuracy of measurement, ease of use, storage and retrieval of data".
A particularly important advantage of "Raskhod-RU" CAD is the possibility to carry out design of flowmeter optimal as to the accuracy of measurement.
To enable the sensors to perform in a dust-filled environment, a dust-resistant design prevents both contamination of the sensor chip and build up of dust that would restrict the flow path and impair the accuracy of measurement.
A finite accuracy of the corresponding corrections causes systematic uncertainties, which finally limit an achievable accuracy of measurement of the quantum state's parameters.

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