A disc of poled PZT ceramic (piezoelectric coefficient ) is used as a force sensor

PHYSICS · Subjective · Fermi University Physics · Condensed Matter, Materials & Soft Matter · Dielectric and optical properties of solids · Dielectric and optical properties of solids

Solid State Physics, Ch Dielectric response, local fields and ferroelectricity

Problem

A disc of poled PZT ceramic (piezoelectric coefficient

d_{33}=500\,\mathrm{pC\,N^{-1}}

) is used as a force sensor. A compressive force of

F=50\,\mathrm{N}

is applied along its poling direction, between its two electroded faces. (a) Find the charge

Q

that appears on the electrodes.

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