PIEZOELECTRIC MEASURING ELEMENT FOR MEASURING THE DYNAMIC AND STATIC PRESSURE AND/OR THE TEMPERATURE

摘要

An abstract of the disclosure is submitted herewith in a separate sheet.

主权项

1. A measuring element for disposition in a measuring element mounting pre-stressed along a longitudinal axis for measuring at one opposite end of the longitudinal axis a dynamic pressure, the temperature and/or static pressure, comprising:
a body made of a piezoelectric material and defining a longitudinal axis, wherein the body has lateral faces that are arranged opposite of one another in a transverse direction relative to the longitudinal axis of the body and on each lateral face at least one electrode is arranged, wherein the piezoelectric e-tensor (eijk) of the piezoelectric material has a thrust coefficient (eiij) other than zero (with i (i=1 . . . 3) and j (j=1 . . . 3)) such that the inverse piezoelectric effect can be utilized during the operation of the measuring element as a thickness shear oscillator and wherein the piezoelectric material has a piezoelectric d-tensor (dijk) that has at least one of a transverse coefficient (dijj) other than zero (with i (i=1. . . 3) and j (j=1 . . . 3)) and a longitudinal coefficient (diii) other than zero (with i (i=1 . . . 3) and j (j=1. . . 3)) such that the transverse piezoelectric effect in the transverse direction and/or the longitudinal piezoelectric effect in the longitudinal direction can be utilized simultaneously with the inverse piezoelectric effect of the body.