| 摘要 |
<p>A device for detecting the level in a vessel comprises a vibrator wherein two rotary elements (10, 12) having the same resonance frequency vibrate in face opposition. The vibrator elements (10, 12) which are arranged coaxially have a common rotation point (20) located at the center of a membrane (14) acting as a return spring of the outer element (10). The inner element (12) has the shape of a bar and comprises at the vicinity of the rotation point (20) a choke (17) acting as a return spring. The arrangement according to the invention allows a detection of the level both for high and low density loads with a detection sensitivity which is almost independent of the embedding conditions of the vibrator.</p> |
