Transducer apparatus as well as measuring system formed by means of such a transducer apparatus

Abstract

A transducer apparatus comprises a deformation body as well as, positioned on the deformation body and connected therewith by material bonding, a radio sensor having a surface facing away from the deformation body. The radio sensor is adapted to receive free-space electromagnetic waves and to convert them into acoustic surface waves propagating along the surface facing away from the deformation body, or to convert acoustic surface waves propagating along the surface into free-space electromagnetic waves. Additionally, the deformation body is adapted as a function of a mechanical force acting thereon, and/or as a function of a temperature change, to be at least partially deformed, in such a manner that at least the surface of the radio sensor facing away from the deformation body experiences a shape change influencing a propagation of acoustic surface waves propagating along the surface. A measuring system formed by means of such a transducer apparatus comprises additionally a measuring electronics electrically coupled with the transducer apparatus and adapted to generate at least one electrical driver signal feeding and/or activating the transducer apparatus and to couple such into the transducer apparatus, and to receive and to evaluate a measurement signal delivered from the transducer apparatus.