Piezoeletric sensing element and torque sensor assembled with the same
AssigneeChung Yuan Christian University
InventorsYung Ting, Sheuan-Perng Lin
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Abstract
A piezoelectric sensing element includes a ring type piezoelectric device, two ceramic structural adhesives, two electrode sheets, two structural adhesives, a ring type sheet, and a disk-shaped cylindrical ceramic sheet. The two ceramic structural adhesives, respectively located above and below the ring type piezoelectric device. The two electrode sheets, respectively located above and below the two ceramic structural adhesives. The two structural adhesives, respectively located above and below the two electrode sheets. The ring type sheet, located above or below one of the two structural adhesives. The disk-shaped cylindrical ceramic sheet, located below or above another of the two structural adhesives.
Claims14
A piezoelectric sensing element, comprising:
- a ring type piezoelectric device, with two sides respectively printed with a low-temperature electrode, wherein the polarization direction of the ring type piezoelectric device is clockwise or counterclockwise perpendicular to the direction of an annular cross sectional surface;
- two ceramic structural adhesives, respectively located above and below the ring type piezoelectric device;
- two electrode sheets, respectively located above and below the two ceramic structural adhesives, wherein the two electrode sheets can be adhered to the ring type piezoelectric device by pressurizing the two ceramic structural adhesives;
- two structural adhesives, respectively located above and below the two electrode sheets;
- a ring type sheet, located above or below one of the two structural adhesives;
- and
- a disk-shaped cylindrical ceramic sheet, located below or above another of the two structural adhesives.
Dependencies are inferred from the claim text.