RESISTIVE STRAIN-GAUGE FORCE TRANSDUCER Russian patent published in 2014 - IPC G01L1/22 

FIELD: measurement equipment.

SUBSTANCE: resistive strain-gauge force transducer includes a stiff centre, a force-introducing cover, an annular force transducer restricted from inside with a cylindrical surface; besides, it is provided in its lower part with an annular projection restricted from inside with the same cylindrical surface, a supporting cover of a larger diameter and a supporting ring, which are connected to each other in series and made as a whole. The force-introducing cover is concave and restricted in the middle part from outside and from inside with cylindrical surfaces and is adjacent smoothly from inside to sections of conical surfaces of similar conicity, and convergent parts of cones are symmetrically directed to the middle part. An upper under-resistor ring is restricted with cylindrical surfaces and is provided from outside with two symmetrical projections restricted with conical surfaces of the same conicity, and their convergent parts are directed to the centre, and pressed along these surfaces into the middle part of the force-introducing cover. An annular projection of the annular force transducer is also restricted from outside with a conical surface and its convergent part of the cone is directed to the annular force transducer, and the lower under-resistor ring is pressed along it and borne against the annular force transducer.

EFFECT: improving reliability and accuracy of measurements.

3 dwg