| 摘要 |
Ultrasonic indicator of liquid level has power supply block, logical element, control unit. Additionally it has pulse generator that is vertically connected to generator of ultrasonic oscillations, quartz emitter that is rigidly installed, this transfers ultrasonic pulses in horizontal plane to quartz receiver after transformation of those with video-amplifier to video-signals that after voltage divider are fed to circuits of upper and lower anti-coincidence with gradual increase of levels for support of interval between the sounding and reflected pulses and at change of given duration signals come to upper and lower integrators and arrive at output I and output II, respectively. |
