Open AccessOn the observed variations in the temperature coefficients of a precision balance
Author(s) -
John Manley
Publication year - 1912
Publication title -
proceedings of the royal society of london. series a, containing papers of a mathematical and physical character
Language(s) - English
Resource type - Journals
eISSN - 2053-9150
pISSN - 0950-1207
DOI - 10.1098/rspa.1912.0051
Subject(s) - balance (ability) , displacement (psychology) , mathematics , range (aeronautics) , magnitude (astronomy) , constant (computer programming) , atmospheric temperature range , detailed balance , mathematical analysis , physics , thermodynamics , materials science , physical therapy , computer science , psychology , medicine , astronomy , composite material , psychotherapist , programming language
Introductory. -In a former paper communicated to the Royal Society, the apparent abnormal behaviour of certain precision balances was described and discussed. One of the most important points therein considered and discussed. One of the most important points therein considered was that dealing with the displacement of the resting-point, R. P., of a beam, consequent upon a uniform rise or fall in the temperature of the instrument. The magnitude of the displacement of the resting-point, R. P., for a change of 1°C. was termed thetemperature coefficient of a balance . The variations in the R. Ps. of the balances tested were observed within a somewhat limited range of temperature only. Within those limits they were found to be regular and expressible by an equation of the form Rt = Rs {1±αt ±βt 2 }, in which Rs and Rt are the R. Ps . at some standard temperature and t° respectively, andα andβ experimentally determined constants for a given balance and particular load.