APPARATUS FOR MEASURING VIBRATION ACCELERATION Russian patent published in 2012 - IPC G01M7/02 G01P15/93 

FIELD: physics.

SUBSTANCE: disclosed apparatus for measuring vibration acceleration has a housing 1, in which there is a sensitive element in form of a cantilever bar made from an elastic plate 2, on which there is a load which can be displaced and fixed on the surface of the bar. Displacement of the load 3 is shown by horizontal arrows. A flat mirror 4 is rigidly mounted at the end of the cantilever bar 2. On the side surface of the housing 1 there is an opening accommodating the end of a fibre-optic information transducer 5, which is in form of bundle of an emitting 6 and receiving 7 light guide, grouped according to a mosaic optical arrangement. The mirror surface of the flat mirror lies on the side of the end face of the fibre-optic transducer 5, perpendicular to the mirror surface of the flat mirror 4. The apparatus is mounted on the surface of the test article 8.

EFFECT: high sensitivity and wider range of measuring vibration acceleration without complicating the design.

2 cl, 2 dwg