INK-JET HEAD, METHOD OF FORMING IMAGE USING INK-JET HEAD, ANGULAR VELOCITY SENSOR, METHOD OF MEASURING ANGULAR VELOCITY USING ANGULAR VELOCITY SENSOR, PIEZOELECTRIC POWER GENERATION ELEMENT, AND METHOD OF GENERATING POWER USING PIEZOELECTRIC POWER GE

摘要

The objective of the present invention is to provide an ink-jet head, an angular velocity sensor, and a piezoelectric power generation element, wherein an accurate amount of ink can be discharged, an accurate angular velocity can be measured, and power generation using positive piezoelectric effect can be executed, even when an electric field of 40kV/cm or more is applied thereto. A piezoelectric film of the present invention is provided with a piezoelectric layer, and first and second electrodes that sandwich the piezoelectric layer therebetween. The first electrode is provided with a (001) orientation, and the piezoelectric layer is composed of (1-z)(NaxBiy)TiO0.5x+1.5y+2-zBaTiO3 having a (001) orientation, wherein x is not less than 0.30 and not more than 0.46, y is not less than 0.51 and not more than 0.62, and z is not less than 0.07 and not more than 0.09.