G - Physics – 01 – L
Patent
G - Physics
01
L
73/0.5
G01L 25/00 (2006.01) G01L 1/22 (2006.01) G01L 5/16 (2006.01)
Patent
CA 1321480
ABSTRACT OF THE DISCLOSURE In order to calibrate an appliance for measuring force or moment, the measuring element (1 carries a strain gage bridge (R1, R2, R3, R4) for delivering a signal which is mainly sensitive to the force or to the moment to be measured and is provided at the time of manufacture with two other strain-gage bridges (R5, R6, R7, R8,) ; (R9, R10, R11, R12,) for delivering signals which are mainly sensitive to two parasitic stresses other than the force or the moment to be measured. In a first stage, the method consists in measuring the signals delivered by the three strain- gage bridges in the absence of any load applied on the measuring element, then under a number of known reference loads chosen from among those to which each strain-gage bridge is the most sensitive. In a second stage, the reference measurements are used as a basis for calculating the parameters of sensitivity according to which each of the signals delivered by the measuring bridges is a function of the applied loads. In a third stage, these parameters of sensitivity are used as a basis for calculating the correction to be made in the force or the moment measured by the first strain-gage bridge (R1, R2, R3, R4).
583320
Fetherstonhaugh & Co.
Seb S.a.
LandOfFree
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