Failure to ce nt er 10flds o n la bo ra to ry-bala nce p a ns r es ults in swinging a nd v ibration of t he susp ension upon r elease, bot h of w hi ch contribu te to weig hin g error. As p a rt of a s t ud.\' of ba la nce desig n in relat ion to sources of un cer tain ty, a d evi ce has been contrived w hi ch, w he n installed in t he s uspension, locks t h e suspension in a g rav itationa lly a lined co nfi guratio n a fter loadin g bu t prior to bea m r elease. D ata is prese nted showin g signifi can t r edu ction of t he effects of off-centeri ng after t he device h as bee n operated.
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Bowman et al. (1960) studied this question.