Method for producing an acceleration sensor

A method for producing an acceleration sensor comprising an electromechanical transducer having a piezoelectric element, comprising:

• providing at least two piezoelectric substrates, each of the at least two piezoelectric substrates having two opposing main surfaces;
• forming the piezoelectric element by directly connecting the entirety of one of the main surfaces of one of the at least two piezoelectric substrates with the entirety of an opposing one of the main surfaces of another one of the at least two piezoelectric substrates;
• providing supporters to support the electromechanical transducer, the supporters being directly connected to the at least two piezoelectric substrates composing the piezoelectric element so as to sandwich an end portion of the piezoelectric element;
• and
• thereafter, forming electrodes that extend continuously in a range from unconnected main surfaces of the piezoelectric element to surfaces of the supporters opposite to surfaces connected to the piezoelectric element.