FIELD: measurement technology. SUBSTANCE: device is designed to measure average values of torque transmitted by rotating shafts of power plants in pumping equipment. It includes driving and driven half-clutches formed by permanent magnets with alternating poles that are separated by non-magnetic leak-tight partition. Magnetic fluxes of driving and driven half-clutches are measured by means of Hall generators positioned on partition of side of end faces of magnets. Each Hall generator is correspondingly connected to differential amplifier, threshold unit of zero level, inverter, logic 2NOT-AND gate and pulse former placed in series. Threshold unit of fixed level is placed between output of differential amplifier and second input of 2NOT-AND gate. Outputs of pulse formers are coupled to RS flip-flop, low-frequency ripple filter, initial phase shift compensator and register connected in series. Source of compensation voltage is connected to second input of initial phase shift compensator. EFFECT: increased measurement precision and reliability. 4 dwg
Authors
Dates
1999-11-20—Published
1998-04-17—Filed