| 摘要 |
FIELD: measuring equipment.SUBSTANCE: invention relates to measurement equipment and can be used for measurement of acceleration parameters in vibrometry, seismology and acoustics. Known single-component piezoelectric accelerometer comprises a preamplifier and a concentrically located annular inertial mass body and piezoelectric sensitive element in form of three piezoelectric sectors, one of which is made with axial polarisation and electrodes in contact with side surfaces of piezoelectric sectors, annular body is made of electrically conductive material with possibility of contacting side surfaces of piezoelectric sectors, electrodes being connected to a preamplifier, introduced second and third preamplifiers, wherein second and third piezoelectric sectors are made with radial polarisation and connected to second and third preamplifiers.EFFECT: technical result of invention is measurement of acceleration vector components with help of piezoelectric accelerometer running on shear deformation.2 cl, 2 dwg |
