ANCHOR STRAIN GAUGE Russian patent published in 2001 - IPC

FIELD: applicable for measurement of rock pressure manifestations. SUBSTANCE: the gauge has a body with a central hole and flanges at the ends. Positioned on the body outer side are active and compensation resistance strain gauges interconnected according to the bridge circuit, whose branches have equal resistances. The gauge is positioned in a protective housing. The compensation resistance strain gauges are glued on plates made of the body material that are attached to the body by one end. The bridge circuit active branches have two series-connected resistance stain gauges each that are glued on the body in parallel with its axis. The space between the body and housing is filled with sealant. EFFECT: enhanced accuracy and reliability of the gauge, as well as reduced its height. 2 cl, 2 dwg