| 摘要 |
<p>The invention relates to a variable capacitor capable of high-speed change of electric capacity. According to the invention, the capacitor comprises two plane parallel metal coatings (1, 2), where one coating (2) is undetachably attached to one of the plane faces of a linear piezoelectric actuator (3) intended to modify the distance between the two coatings (1, 2) according to a sine law, with a view to achieving high-speed change of the capacitor electric capacity, while the other coating (1) is attached to an electrically-insulating material (4); the said entire structure is cast in a polymeric casing (5) together with some electric contact pins (6), thereby resulting a low-sized tight structure as an electronic chip.</p> |
