FIELD: transport.
SUBSTANCE: invention relates to machine building. Experimental one-wheel semitrailer comprises frame with cargo plates, driven braking mechanism, strain gage and recording hardware and device to measure longitudinal forces. The latter is mounted between truck tractor and semi-trailer and is made up of a cylinder. Said cylinder houses a piston pinned to cylinder center, pins being equipped with strain gages glued thereto. One part of said gages undergoes expansion strain with measuring device expanding while another part of said gages undergoes expansion strain with measuring device contracting.
EFFECT: expanded range of measured forces acting on vehicle in lengthwise direction.
2 dwg
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