| 摘要 |
The invention is intended for a flowing liquid debit and the quantity measurement by an electromagnetic method, using a lower frequency pulse magnetic field. In order to simplify the structure of the electromagnetic debit measuring device and increase the precision of measurement there is a transducer installed (1), consisting of a non-magnetic material tube (2) with two inside electrodes insulated from the tube walls and a electromagnet, containing the first (3) and second (4) excitation windings. The amplifier (5) is connected to the transducer (1) by the first and second inputs of the electrodes. Also connected are; an excitation current generator (9), a demodulator (6), a control pulse generator (8), integrator (10), normative unit (7), consisting of an analogue-digital converter (17), and a division block (18) and an indication unit (16), additionally including dual diode stabilitron (15) and the first (11), second (13) and third (12) keys. |
