Balance Calibration – A Method for Assigning a Direct-Reading Uncertainty to an Electronic Balance.
Paper Title: Balance Calibration – A method for assigning a direct-reading uncertainty to an electronic balance. Intended Audience: Those who calibrate or use electronic balances. Abstract: As a calibration facility, we provide on-site (at the customer’s location) calibrations of electronic balances for customers within our company. In our experience, most of our customers are not using their balance as a comparator, but simply putting an unknown quantity on the balance and reading the displayed mass value. Manufacturer’s specifications for balances typically include specifications such as readability, repeatability, linearity, and sensitivity temperature drift, but what does this all mean when the balance user simply reads the displayed mass value and accepts the reading as the true value? This paper discusses a method for assigning a direct-reading uncertainty to a balance based upon the observed calibration data and the environment where the balance is being used. The method requires input from the customer regarding the environment where the balance is used and encourages discussion with the customer regarding sources of uncertainty and possible means for improvement; the calibration process becomes an educational opportunity for the balance user as well as calibration personnel. This paper will cover the uncertainty analysis applied to themore »
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- Conference: NCSL International Workshop and Symposium,Rhode Island Convention Center , Providence, RI ,07/25/2010,07/29/2010
- Research Org:
- Idaho National Laboratory (INL)
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- Country of Publication:
- United States
- 47 OTHER INSTRUMENTATION; CALIBRATION; MAGNETISM; MONITORING; PERSONNEL; SENSITIVITY; SPECIFICATIONS; STABILITY; balance calibration
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