TORSIOMETER Russian patent published in 2007 - IPC G01L3/12 

FIELD: measuring technique.

SUBSTANCE: torsiometer comprises two rotors secured to the shaft at a given distance one from the other. The rotors are made of cylindrical nozzles that are coaxial to the shaft. The dielectric clamps are arranged uniformly over periphery along the generatrices of the nozzles. The free ends of the clamps are provided with the permanent magnets. The torsiometer is additionally provided with stator made of two groups of dielectric beams uniformly arranged over the cylindrical surface. The free ends of the beams are provided with the electromagnets mounted for permitting periodic pulse cooperation with the permanent magnets. The fiber optic coils of the interferometer are built in the base of the stator. The fiber coils receive the ends of the stator beams. The output of the interferometer is connected with the recorder through photocurrent amplifier, pulse inverter, and integrator connected in series. When the shaft rotates, the permanent magnets of the rotors periodically cooperates with the electromagnets of the stator. When a torque is generated at the shaft, a signal proportional to the value of the torque is generated at the output of the interferometer.

EFFECT: enhanced precision.

2 cl, 6 dwg