STRAIN ACCELEROMETRE Russian patent published in 2010 - IPC G01P15/12 

FIELD: measuring equipment.

SUBSTANCE: invention is related to measuring equipment, namely to accelerometres. Strain accelerometre comprises body, elastic sensitive element (SE), which works for bending, weight and measuring bridge circuit. Besides weight is arranged as asymmetrical versus SE plane so that centre of weight inertia, which lies on central vertical axis of SE symmetry is displaced versus SE plane by distance H=(0.05…0.5)L, where L is transverse size of the whole area of SE lower rigidity. SE comprises additionally arranged bridge circuits from additional resistive-strain sensors, which, same as resistive-strain sensors of the main circuit are arranged on flat side of SE in area of its lower rigidity at the borders with its rigid areas, are oriented and connected into circuits so that output signal of each circuit depends only on one component of acceleration (which this circuit measures) and does not depend on other components; distance between edges of rigid central and peripheral areas arranged on one side relative to SE centre, makes (0.1…0.25)L. Weight may be represented by central rigid part of SE.

EFFECT: invention provides for simultaneous measurement of all three acceleration components.

2 cl, 5 dwg