In our everyday vision measurement, image measurement, often encounter some measurement terms, today specially collected some measure of jargon for details: 1.
Measurements: in order to determine the value of an operation.
Measured values: from measuring equipment directly or through necessary calculated value.
Measurement accuracy, measurement results and the consistent degree of truth value is measured agreed.
In measurement repeatability: meet the following conditions, the same continuous measurement is measured, and the degree of agreement between the measured results.
Including: the same measurement method;
The same observer;
The same measuring instrument;
The same location;
The same conditions of use;
In a short time interval repeat.
Measurement reproducibility: change one or more of the following conditions, for continuous measurement of the same be measured respectively, and the degree of agreement between the measured results.
Include: measuring method, the observer, measuring instrument, the location, the conditions of use, time, etc.
The uncertainty of measurement: characterized by measuring the true value in the value of the scope of the assessment.
Absolute error: measurement results and the difference between the true value is measured agreed.
Relative error: the absolute error of measurement and measuring the ratio of the true value.
Random error: in the same measure in the process of repeated measurements, changes in unpredictable ways of measuring error component.
System error: repeated measurement process is measured in the same, to maintain a constant or change in predictable ways of measuring error component.
Staff error: by measuring personnel error caused by subjective factors and operation technology.
Error: environment may change with the environment measurement error component.
Method error, measurement error caused by imperfect.
Adjust error: failed to adjust measuring instruments or object to be tested to the correct position or state caused by the error.
Reading error: as the observer for measuring error caused by inaccurate readings.
Parallax: observers observed deviate from the correct direction when reading or target caused by error.
For reading error: within the scope of the index value estimation error caused by reading.
Gross error: obviously the expected error within the prescribed conditions.
Power: measurement instruments measured surface of the piece to be measured (
Measurements of pressure.
Measuring equipment, can be individually or together with other device, is used to determine geometric instruments of value.