Piezoelectric sensor
A technology of piezoelectric sensors and piezoelectric sheets, applied in fluid pressure measurement using piezoelectric devices, measurement of property forces using piezoelectric devices, piezoelectric/electrostrictive/magnetostrictive devices, etc., can solve problems that cannot Problems such as water vapor diffusion, removal, and piezoelectricity drop of the piezoelectric sheet are achieved to achieve the effect of easy electrical connection and excellent piezoelectricity
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[0074] An example of the piezoelectric sensor of the present invention will be described with reference to the drawings. Such as Figure 1~5 As shown, the piezoelectric sensor A includes a piezoelectric sheet 11, a first ground electrode 12 laminated and integrated on a first surface of the piezoelectric sheet 11, and a signal electrode 13 laminated and integrated on a second surface of the piezoelectric sheet 11. , The second ground electrode 14 integrated on the signal electrode 13 is laminated.
[0075] The piezoelectric sheet 11 is not particularly limited as long as it is a sheet (a sheet having a piezoelectric phenomenon) that can generate electric charges on the surface by applying an external force. As the piezoelectric sheet 11, for example, a piezoelectric sheet obtained by polarizing a synthetic resin sheet (synthetic resin foamed sheet or synthetic resin non-foamed sheet), and dispersion of inorganic piezoelectric materials A piezoelectric sheet made by polarizing an...
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