PURPOSE: To improve operation efficiency by suspending an object to be measured by means of load detectors provided in three or four points and calculating an amount of unbalance and an angle thereof in accordance with the outputs of the load detectors.
CONSTITUTION: Load cells 20W22 are disposed so as to be positioned at the respective vertexes of a regular triangle, and a measuring stanchion 24 supporting a circular grindstone 33 which is an object 10 to be measured is suspended to the load cells by means of lifting hooks 29W31. The object 10 is suspended at the respective vertexes of a regular triangle having a length (l) on one side, and if the outputs of load detectors 11, 12, 13 are designated as W1, W2, W3, an amount of unbalance (z) is the equation I and an angle θ is the equation II.
HIROSE YOSHIAKI
YOSHIKAWA HIROTAKA
MOTOOKA AKIRA
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