GEAR DIAGNOSING MULTICOUPLED RESISTANCE STRAIN GAUGE SYSTEM Russian patent published in 1997 - IPC

FIELD: controlling and measurement systems. SUBSTANCE: light-emitting diode of each optron is placed into feedback of operational device and photodiode - in parallel to working arm of corresponding strain-gauge transducer. Generalized coefficient of matrix A^-1 (reciprocal to matrix A) is used to control input currents of optrons. For this purpose signal from unit 12 forming electric analogs of components of vector of force and moments incorporating all components of vector pf force and moment goes through key 9 and blocking capacitor 11 to unit 13 for modelling of coefficients of reciprocal matrix of multicomponent strain-gauge transducer including unit 16 of scaling resistors, inverting and noninverting amplifiers 15, 14 and to scaling unit 8. Inputs of amplifiers are inputs of unit 13. Inputs of each amplifier are connected to input of corresponding operational device through current-setting resistor of unit 16, light-emitting diode of optron is connected into feedback of it. Amplifiers 14 and 15 together with current-setting resistors determine sign and amplitude of generalized sinusoidal signal across output of each strain-gauge transducer. Displays are used to evaluated serviceability of tensopath and correctness of computations. EFFECT: enhanced functional reliability and stability of gear. 5 dwg