cantilevered piezoelectric sensor autodetection, autoexcitable

A sensor (12) comprising: a piezo (14) layer comprising a proximal end and a distal end; a base portion (20) coupled to the proximal end of the piezoelectric layer; a non-piezoelectric layer (16) comprising a proximal end and a distal end, wherein at least unaporcion of the piezoelectric layer (14) is coupled to at least a portion of the non-piezoelectric layer (16) talmanera that piezoelectric layer (14) and the non-piezoelectric layer (16) are non-coextensive; and electrodes (28, 32) operatively associated with the piezoelectric layer (14), wherein the debase portion (20) does not adhere to the proximal end of the non-piezoelectric layer (16).