| 摘要 |
FIELD: measurement equipment.SUBSTANCE: accelerometer includes a preliminary amplifier and the following annular components that are located concentrically: an inertia mass, a housing and the first piezosensitive element with axial polarisation in the form of piezoelectric sectors that do not contact each other, and electrodes contacting the side surfaces of the piezoelectric sectors, with that, the annular housing is made from conductive material with possible contact to the side surfaces of the annular piezoelectric sectors; with that, electrodes are electrically connected in-parallel and connected to the preliminary amplifier. It includes the second and the third preliminary amplifiers, as well as the second annular piezosensitive element installed above the first annular piezosensitive element and made in the form of two pairs of radially polarised sectors provided with electrodes contacting to the side surfaces of the sectors. Both sectors of the pair are installed in the centre symmetrically with opposite polarisation, connected through electrodes in-parallel and to the second and the third preliminary amplifiers.EFFECT: enlarging scope of application of an accelerometer.2 dwg |
