| 摘要 |
FIELD: transport. ^ SUBSTANCE: device incorporates a power supply, a pulse accumulator, a pressure pickup, a pulse generator, a match circuit, a frequency divider with a float division factor, a digital indicator, a switch connected via the pressure pickup N.C. contact to the match circuit first input. The pulse generator is connected to the match circuit second input, the said circuit output being connected to the float division factor frequency divider. The said divider output is connected to the pulse accumulator input, the said accumulator output being connected to the digital indicator. ^ EFFECT: higher accuracy of locating the air-locks in pipeline system. ^ 2 cl, 6 dwg |
