There is put forward a piezolectric element for converting pressure signals
into electrical signals and vice versa, with a porous homogeneous ceramic body
and with at least two electrodes attached to the ceramic body. The porous ceramic
body comprises open pores and is preferably hermetically sealed on the whole surface
with an elastic coating. Furthermore there is suggested an oscillation transducer
with the piezolement which is accommodated in a housing. The piezolectric element
is with one end face rigidly connected to the base of the housing. The other end
face represents a surface which is sensitive to oscillations, which preferably
is not covered by the housing. The volume of the housing is filled with a casting
compound, wherein the piezolectric element is mechanically decoupled from the casting compound.
