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Measurement Exam 1

QuestionAnswer
difference between measured value and true value error
same error offsets every measurement bias error
(systematic error) Bias error
(random error) precision error
different for each measurement-unpredictable precision error
creates a spread of values around the mean precision error
measuring electrical characteristics of both instrument and system loading error
other types of error illegitimate error, backlash & mechanical friction, drift, sensitivity or scale error
difference between instruments reported values during repeated measurements of the same quantity precision
determined statistically precision
smallest change in measured value that can be determined from the instrument output resolution
change in input per unit charge in the in the input or measurand sensitivity
best fit line or terminal-based line linearity
exhibits a different output when the input is increasing than when it is decreasing hysteresis
are the same as systemic errors. they occur the same way each time a measurement is made bias errors
refers to the implements of measurement procedure to the system being tested. The measuring process alters the characteristics of both the source of the measured quantity and the measuring system itself loading error
Calibration errors, certain consistently recurring human errors, certain errors caused by defective equipment, loading errors, limitations of system resolution bias error
Errors caused by disturbances to the equipment, errors caused by fluctuate in experimental conditions, errors derived from insufficient measuring system sensitivity precision error
The difference between the measured and true values. The manufacturer will specify a maximum error accuracy
Created by: user-2024066
 

 



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