| 摘要 |
This dielectric film comprises an elastomer (101) and dielectric particles (102), and satisfies a condition (A) [the mean number of references is 0.8/μm or above], condition (B) [the mean number of large particles is 0.2/μm or below], and condition (C) [there are ten or fewer unit regions where the area ratio of the elastomer is 30% or below] in a cross-sectional photograph (100) of the film thickness direction captured by a scanning electron microscope. This dielectric film is flexible, has a large relative permittivity, and has large insulation breakdown strength even when thinned. This transducer is provided with the dielectric film and a plurality of electrodes arranged via the dielectric film. |
