METHOD TO DETECT POSITION OF CENTRE OF MASS Russian patent published in 2013 - IPC G01M1/12 

FIELD: measurement equipment.

SUBSTANCE: method is based on multiple measurement of spatial position of an object (in neutral and inclined condition) and appropriate processing of results. If there are no facilities of direct weighing for detection of a reaction in supports, the total weight of the object is defined by the sum of reaction values produced according to available non-linear power characteristics of supports, and coordinates of the point of centre of mass in the horizontal plane are produced from equations of motion. The height of the centre of mass is detected with the calculation and experimental method. Calculations are carried out to produce calibrated curves of dependences between lowering of one side of the object and fixed lifting of the opposite side for a row of pre-selected values of the height of centre of mass. At the same time predictive values of the height of centre of mass shall be securely placed in the interval of calculation values of the centre of mass. One of the sides is lifted in the experimental part. Due to redistribution of weight loads between the supports, the opposite side lowers by the value proportionate to change of reactions in supports. Experimental values of one object side lowering are projected to the appropriate calibrating curve of the fixed lifting height. The coordinate of the point of crossing with the curve in the axis of the suggested height of the point of centre of mass provides actual height of the position of centre of mass.

EFFECT: higher accuracy of measurements, expanded range of measurements, possibility to make measurements in the mode of regular object operation.

4 dwg