(under subclass 348) Subject matter wherein the device includes at least one electrode for the piezoelectric element which is spaced from the piezoelectric element or contacts the piezoelectric element without being mechanically attached to it, i.e., the electrode merely lays on the piezoelectric element, or the piezoelectric element merely rests on the electrode.
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347, for air gap type devices which include a means to compensate for the effects temperature change could have on the device due to change in the air gap.
