| 摘要 |
<p>In a transducer for emission and pick-up of mechanical vibrations, a center body (4) is suspended in a piezoelectric and elastic suspension structure (3) in a surrounding framework (2). The suspension structure (3) is sector divided, and has separate signal conductors for each respective sector (5), so that vibrations can be transmitted and received simultaneously with different sectors (5). Besides, the center body (4) may be equipped with piezo-elements of its own.</p> |
