FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment and is intended for determination of parameters of impact and vibration accelerations. Essence of the invention is that the piezoelectric sensor comprises a housing, a support, wherein at the point of mounting the support a mechanical filter is formed from an elastic electroconductive material, thickness of which is determined by the standard size of particles contained in the composition of the adhesive, in addition, the piezoelectric element is made from segnetorigid piezoceramics based on LZT (lead zirconate titanate) with porosity of 15–60 %, and the inertial element is made of tungsten or tungsten alloy, wherein the piezoelectric element and the inertial element are fixed by means of an elastic electroconductive adhesive layer, as well as in the base of the housing, in the inner cavity, an annular anti deformation cut is made.
EFFECT: improving accuracy and reliability of measurement of impact and vibration accelerations.
1 cl, 3 dwg
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