715. Self-Calibrating Techniques on a Dead Weight Machine
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Paper
Abstract
The function of a Dead Weight Machine is described. A calibration technique is presented whereby the separable components (dead weights) are calibrated directly in the Dead Weight Machine using a precision load cell as a mass comparator, thus eliminating the costly and time consuming disassembly and reinstallation process which would otherwise be required. Traceability to the National Bureau of Standards is demonstrated. Conversion from the mass unit to the force unit and possible sources of error are discussed in detail. The question of independent loading versus sequential loading is raised and the advantages of each system are analyzed.
