SENSOR FOR TENSOMETRIC BALANCE Russian patent published in 1998 - IPC

FIELD: high-precision tensometric balances. SUBSTANCE: sensor has two elastic parallel members positioned one inside other, each having power arms joined with the aid of two restoring beams with thinning made in end sections of restoring beams of external parallelogram element, force-transmitting device and resistance strain gauges located on one of restoring beams of internal parallelogram element which power arms are manufactured with horizontal protrusions. One of protrusions is made fast in groove of first power arm of external parallelogram element, other protrusion is connected to its second power arm via power transmitting device that is fabricated in the form of Z-shaped rigid support which first flange is positioned in one horizontal plane with horizontal protrusion of first power arm of internal parallelogram element and is anchored in groove made in second power arm of external parallelogram element and of vertical belt 40.0-120. thick joining second flange of rigid support with horizontal protrusions of second power arm of internal parallelogram element. Internal parallelogram element and force transmitting device are made integral from monocrystal of silicon. EFFECT: increased reliability and precision of sensor. 3 cl, 5 dwg