THREE-AXIS ACCELEROMETRE Russian patent published in 2009 - IPC G01P21/00 

FIELD: measurement equipment.

SUBSTANCE: invention refers to measurement equipment and can be used for measuring accelerations induced with vibrations of the base on which three-axis accelerometre is installed. In order to achieve this result, accelerometre includes calibration platform 1, three one-axis acceleration sensors 2, electric motor 3 with rotor position sensor 4 and reduction gear 5, plate 7 with holes 8, electronic optic unit 9 with photodiode 10 and photoreceiver 11. Plate 7 is located between photodiode 10 and photoreceiver 11 so that plate holes can pass between photodiode 10 and photoreceiver 11 when it is rotated. Unit 12 for adjusting angular oscillations of calibration platform 1 is connected to plate 7 and made in the form of two levers 13 and 14, one end of one of which is hinged to plate 7, and the other end is hinged to second lever 14. The other end of second lever 14 is rigidly fixed on calibration platform 1. Calibration control module 15 has three inputs and two outputs. Two one-axis sensors 2 of accelerations with horizontal sensitivity axes are located on one side and at equal distances from axis of oscillation of calibration platform 1, and the third one - on axis of oscillation of calibration platform 1.

EFFECT: improving measuring accuracy.

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