| 摘要 |
An invention refers to means of technical control and adjustment of technical processes. The proposed alarm device for substance quantity level consists of measuring device (1), formed of an UHF generator (2), a receiver (3), positioned in a certain distance from it, an electronic transducer of the measured signal (4), and an inductor (5). The measuring device (1) is installed in a way that it covers a gap between the UHF generator (2) and the receiver (3). The electronic signal transducer (4) can be formed as connected in series with an amplifier (6), a peak detector (7), a voltage-frequency transducer (8), an integrator (9) and a comparator (10), three electronic switches (11,12,13) being arranged to interact with them.
|
