Metrology

Metrology derive from the Greek word "Metro" which means ____ and Logy which means ____.

• Measure, Signal

• Measure, Source

• Measurement, System

• Measurement, Science

Metrology includes all aspects with reference to measurements, whatever their level of accuracy.

• True

• False

• Sometime True

• Depends on the situation

The closeness between a test result and accepted value.

• Accuracy

• Precision

• Calibration

• Drift

The distance between the expected value and the accepted reference value.

• Accuracy

• Bias

• Calibration

• Drift

Find the Bias if the true value is 40 mm and the measured value is 39.50 mm.

(a)  

The set of operations that established the relationship between values indicated by instruments and the corresponding values given by standards under specified conditions.

• Accuracy

• Bias

• Calibration

• Drift

Slow to change of a metrological characteristic of measuring instrument.

• Traceability

• Precision

• Drift

• Resolution

The smallest chance of the measured quantity which changes the indication of a measuring instrument.

• Accuracy

• Precision

• Drift

• Resolution

A measured result can be related to references

• Drift

• Traceability

• Resolution

• Precision

The closeness of agreement between independent test results obtained under stipulated conditions.

• Accuracy

• Precision

• Drift

• Traceability