FIELD: physics.
SUBSTANCE: process of torque measurement is based on periodic impact of measured torque μ on resonance oscillating system with threshold of sensitivity μn and frequency equal to the system resonance frequency ω. So when μ<μn, the oscillating system is brought into excited state by external force much higher than μn, then it is brought into forced-oscillation regime by the measured torque μ with a lag between it and damping system oscillations consequently taking form of Δβ=nπ, where n=0, 1, 2, .... The sought torque value is defined by the amplitude difference of these phases, Δϕn, according to the formula: 
where k is stiffness coefficient of oscillating system, and α is its damping rate.
EFFECT: higher measuring sensitivity.
5 dwg
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