TRIAXIAL VIBRATION CONVERTER Russian patent published in 2022 - IPC G01H1/00 

FIELD: measuring.

SUBSTANCE: invention relates to metrology. Triaxial vibration converter comprises a piezosensitive triaxial sensor with the axes connected to the corresponding charge amplifiers. The sensor is configured to balance the influence of the transverse axes. Two series-connected multipliers are connected to the outputs of each charge amplifier, wherein the second inputs of said multipliers are connected with the outputs of the normalisers, the inputs whereof are connected to the outputs of the charge amplifiers of the transverse axes. The transmission coefficients of the normalisers are adjusted while calibrating the vibration converter in accordance with the condition of balancing the vibration loads of the transverse axes. For this purpose, the voltage is measured at the output of the charge amplifier, e.g., of an axis not only with a vibration load exerted on said axis, but also at the output of said axis with the same vibration load applied to the transverse axes, allowing setting the required transmission coefficients of the corresponding normalisers wherein a voltage at the output of the measuring axis in the absence of a vibration load on the transverse axes, the voltage at the output of the measuring axis in the presence of a vibration load on the transverse axis, and the voltage at the output of the measuring axis in the presence of a vibration load on the transverse axis are present; the transmission coefficients of the other normalisers are set in a similar manner.

EFFECT: prevented influence of transverse vibrations on the sensitivity of the measuring axes, increase in the accuracy of measurements.

1 cl, 1 dwg