WEIGHER OF LIQUID Russian patent published in 2006 - IPC G01G17/06 G01G13/04 

FIELD: devices for metering of liquid.

SUBSTANCE: device can be used for metering liquid hardeners when preparing fuel mass of solid rocket fuels. Device has weight metering unit and load-receiving scoop. U-shaped siphon, measurement and control system. Weight metering device has strain measurement weigher, gather and feed-out valves. Measurement and control system has operational amplifier unit, recorder and control unit. The system is also provided with weight-imitator with pneumatic drive. Operational amplifier unit has two amplifiers mounted in parallel, onto inputs of which amplifiers the signal about weight of liquid in scoop is applied through voltage dividers. Outputs of amplifiers are commutated through mating voltage divider to input of summing output amplifier, output signal of which amplifier is applied to recorder. Weight-receiving scoop has suspension having site for weight-imitator.

EFFECT: improved precision; improved reliability of operation; comfort at use.

2 cl, 3 dwg