FIELD: machine building.
SUBSTANCE: system contains controlled wheels, axles with knuckles, bushings, rings and washers with nuts of their fastening on the axles, strain gauges mounted on these rings and connected to an electric bridge (EB), power supply unit (PSU), electric signal amplifier, electromagnetic coil, switchgear, a container with a working fluid, a pump, a hydraulic cylinder fixed to the tie rod, in one of the tips of which there is an eccentric body of a ball joint with a leash connected via the rod to the rod of the hydraulic cylinder. There is also an ohmmeter, the positive terminal (PT) of which is connected to the points C and D EB through the switches, and its negative terminal is grounded, and a three-position switch is installed between the points A and B of the EB and the PC of the PSU, and between the point B EB and the "mass" and each of the strain gauges of the lower part of the EM are installed switches, and the electric signal amplifier has a switch.
EFFECT: ability to measure load cells resistance in the operation process in order to control their equality with each other and, if necessary, to replace them in a timely manner, and thus improve the reliability and accuracy of the system.
1 cl, 1 dwg
